What are the Characteristics of Compression Molding Molds?

Learn about the key characteristics of compression molding molds, including precision, durability, material selection, and industry applications for optimized production.

Compression molding is a high-efficiency, cost-effective method for producing complex parts using composite materials. The molds used in this process—known as compression molds—are essential in ensuring quality, strength, and durability of the finished product. This article explores the main characteristics of compression molding molds, including their structure, materials, applications, and unique advantages.

1. Precision and Customization in Mold Design

Compression molding molds offer customization for various applications, such as automotive and industrial panels. They support:

  • Custom Part Geometry: Tailored molds for complex shapes.
  • Tolerance Control: Ensures precise part dimensions and reduces material waste.
3d mould

2. Materials for Compression Molding Molds

Compression molds are usually made from robust materials capable of withstanding high pressures and temperatures:

  • Steel: Ideal for high-cycle durability.
  • Aluminum: Great for lower-volume runs due to its thermal conductivity.
  • Beryllium Copper: Used for intricate details and high thermal conductivity.

3. Mold Structure and Key Components

Key structural elements of compression molding molds include:

  • Cavity and Core: Define the product shape.
  • Heating System: Ensures material curing.
  • Ejector System: Facilitates part release.
  • Guiding System: Aligns mold halves for accuracy.
bottom cover mould

4. High Heat Resistance and Stability

Compression molds must withstand high temperatures for material curing, with features such as:

  • Heat Resistance: Withstands up to 300°F or higher.
  • Dimensional Stability: Retains shape under high temperatures and pressure.
  • Even Heat Distribution: Reduces cycle times and ensures quality.

5. Durability and Longevity

Compression molds are designed for durability, often lasting thousands of cycles:

  • Material Choice: High-quality steel and alloys enhance longevity.
  • Surface Treatment: Chrome plating for wear resistance.
  • Cycle Efficiency: Reduced wear compared to other mold types.

6. Cycle Time Efficiency

Efficient cycle times are essential for compression molding. Factors enhancing efficiency include:

  • Quick Heat Transfer: High thermal conductivity materials reduce heating time.
  • Optimized Part Release: Smooth finishes and ejector mechanisms minimize sticking.
SMC (sheet molding compound)

7. Compatibility with Composite Materials

Compression molds are compatible with a variety of composite materials like SMCBMC, and thermosets:

  • Material Flow: Even distribution for defect-free parts.
  • Material Curing: Even curing for strength and durability.

8. Applications Across Diverse Industries

Compression molds are widely used in industries including automotive, aerospace, and electrical:

  • Automotive: Panels, body parts, and interior components.
  • Electrical: Insulators and housings with precise tolerances.
  • Household Products: Durable components for daily use.

9. Cost-Effectiveness and Efficiency

Compression molding offers a cost-effective solution for medium to high-volume production:

  • Low Material Waste: Pre-measured charges minimize excess material.
  • Low Tooling Costs: Compared to injection molding.
  • Simplified Setup: Reduces operational costs.
insp

10. Design Flexibility and Enhanced Surface Finish

Compression molding molds offer flexibility and high-quality finishes:

  • Texture and Pattern Integration: Custom finishes for aesthetic appeal.
  • High-Quality Surface Finish: Smooth results, reducing post-processing needs.
  • Minimal Draft Angles: More precise part geometries.

Conclusion

The characteristics of compression molding molds—durability, precision, and compatibility with composite materials—make them essential for high-quality production in diverse industries. These qualities not only ensure product durability but also optimize production efficiency. By understanding these characteristics, manufacturers can make informed decisions, improving product outcomes and achieving cost-effective, reliable manufacturing solutions.

Auman Galaxy Truck: Powered by Innovative SMC Molds from MDC Mould

Explore how Zhejiang MDC Mould Co., Ltd. developed innovative SMC molds for Foton Daimler's Auman Galaxy truck, including SMC roof spoiler molds, SMC front face panel molds, and SMC air deflector molds.

The release of the Auman Galaxy truck by Foton Daimler marks a groundbreaking moment in the commercial vehicle industry, blending sleek design with optimal performance. Integral to this innovation is the advanced SMC mold technology provided by Zhejiang MDC Mould Co., Ltd., responsible for manufacturing crucial structural components of the truck.

SMC Molds: Turning Vision into Reality

MDC Mould worked tirelessly to bring this project to life. From the concept stage to serial production, the company created state-of-the-art SMC molds including molds for the SMC roof spoilerSMC front face panel, and SMC air deflector. In just 12 weeks, MDC Mould transformed these components from prototypes to high-quality serial tools.

This achievement not only reflects MDC’s technical expertise but also highlights their commitment to meeting demanding deadlines without compromising quality.

smc mold Auman Galaxy Truck

Understanding SMC Materials in Automotive Manufacturing

Sheet Molding Compound (SMC) is a composite material made from thermosetting resins, glass fibers, and other additives, and is widely used in automotive manufacturing. Its combination of strength, durability, and lightweight properties makes it ideal for vehicle parts that require high performance while reducing weight.

For the Auman Galaxy truck, MDC Mould’s SMC molds were essential in creating parts such as the roof spoilerfront face panel, and air deflector, improving aerodynamics and enhancing the vehicle’s overall efficiency.

Advantages of SMC in Automotive Components

SMC offers several key advantages in the automotive sector:

  • Lightweight: Reduces the overall weight of vehicles, leading to improved fuel efficiency and reduced emissions, which is especially important for electric vehicles like the Auman Galaxy.
  • High Strength: Despite being lightweight, SMC components offer excellent structural integrity, capable of withstanding harsh environmental conditions and mechanical stress.
  • Corrosion Resistance: SMC parts are highly resistant to corrosion, making them ideal for exterior automotive components exposed to the elements.
  • Cost-Effective: SMC’s efficiency in the molding process reduces manufacturing costs while maintaining high product quality.
automotive air conditioner cover mould

Detailed Overview of SMC Molds for the Auman Galaxy Truck

1. SMC Roof Spoiler Mold

The SMC roof spoiler mold provided by MDC Mould was designed with precision, ensuring optimal aerodynamics and a perfect fit. The roof spoiler not only enhances the truck’s sleek appearance but also contributes to improved fuel efficiency by reducing drag.

2. SMC Front Face Panel Mold

The SMC front face panel mold adds a distinctive touch to the truck’s exterior. This component offers both style and function, giving the vehicle a strong front-end appearance while maintaining durability and impact resistance.

3. SMC Air Deflector Mold

The SMC air deflector mold is another critical component manufactured by MDC Mould. It helps in directing airflow smoothly around the truck, reducing air resistance and noise, thereby contributing to a more fuel-efficient and quieter ride.

Rapid Tooling for Urgent Projects

From prototype to serial tool production, MDC Mould completed the development of these molds in just 12 weeks. Their rapid tooling capabilities make them an ideal partner for projects with urgent lead times. This speed doesn’t come at the expense of quality; MDC Mould employs cutting-edge technology to ensure every mold meets strict industry standards.

compression mold

MDC Mould’s Commitment to Quality and Innovation

With years of experience in the automotive mold industry, MDC Mould is a trusted partner for companies looking for high-quality, reliable molds. Their expertise spans across various sectors, including electric vehicles, making them a leader in the development of SMC molds for the next generation of trucks and cars.

MDC Mould’s team is always ready to take on new challenges, providing tailored solutions for every project. Whether you need SMC moldscompression molds, or other composite mold solutions, MDC Mould is equipped to meet your needs with precision and efficiency.

Partner with MDC Mould for Your Next Project

If your project has a tight timeline or specific technical requirements, reach out to MDC Mould for innovative solutions. Their team is committed to delivering high-quality molds on time, ensuring that your production stays on track.

What is GMT in Matlab?

The integration of GMT in Matlab heralds a paradigm shift in the precision molding industry, unlocking unprecedented possibilities for design optimization

In the realm of precision molding, MDC stands as an industry leader renowned for its commitment to innovation and excellence. With a focus on pushing the boundaries of technology to deliver superior products, MDC is proud to announce its latest breakthrough: the integration of Glass Mat Thermoplastic (GMT) in Matlab.

GMT mold

What is GMT in Matlab? This question marks the inception of a new era in precision molding, where advanced materials meet cutting-edge computational tools. GMT, a composite material known for its exceptional strength, durability, and versatility, is now seamlessly integrated into the Matlab environment, a high-performance computing platform renowned for its numerical computing capabilities.

The integration of GMT in Matlab heralds a paradigm shift in the precision molding industry, unlocking unprecedented possibilities for design optimization, performance enhancement, and cost efficiency. By leveraging the power of Matlab’s computational algorithms and GMT’s superior material properties, MDC empowers engineers to tackle complex molding challenges with unparalleled precision and efficiency.

One of the key advantages of utilizing GMT in Matlab is its ability to streamline the design-to-production workflow. With Matlab’s powerful simulation and optimization capabilities, engineers can rapidly prototype and iterate designs, significantly reducing time-to-market and development costs. Additionally, the integration of GMT in Matlab enables real-time feedback and analysis, allowing for on-the-fly adjustments and fine-tuning to ensure optimal performance.

Moreover, the use of GMT in Matlab opens doors to new applications and industries previously beyond reach. From automotive components to aerospace structures, MDC’s innovative approach enables the creation of lightweight, high-strength parts with unmatched precision and reliability. Whether it’s reducing fuel consumption in vehicles or improving structural integrity in aircraft, the combination of GMT and Matlab offers limitless possibilities for innovation and advancement.

Furthermore, MDC’s dedication to sustainability is reflected in the adoption of GMT in Matlab. By leveraging lightweight materials and efficient computational tools, MDC minimizes environmental impact while maximizing performance and efficiency. From reducing material waste to optimizing energy consumption, MDC’s holistic approach to precision molding sets new standards for eco-friendly manufacturing practices.

gmt mold

In conclusion, the integration of GMT in Matlab represents a bold step forward for MDC and the precision molding industry as a whole. By harnessing the combined power of advanced materials and computational tools, MDC continues to push the boundaries of innovation, delivering superior products that redefine the possibilities of precision molding. With GMT in Matlab, the future of manufacturing is here, and MDC is leading the way towards a brighter,

SMC Mould and Fiber-Reinforced Polymer (FRP) Composite Materials

SMC moulds, as critical tools in manufacturing these composite material components, will play a pivotal role in driving future advancements in materials technology.

Fiber-reinforced polymer (FRP) composite materials are defined as polymers reinforced with fibers, representing a category of materials falling under the broader classification of composite materials. Composite materials are formed by dispersing particles of one or more materials into another material, creating a continuous network around them.

FRP composite materials differ from traditional building materials like steel and aluminum. FRP composite materials are anisotropic, whereas steel and aluminum are isotropic. As a result, their properties are directional, meaning the optimal mechanical performance occurs in the direction of fiber placement.

These materials exhibit a high strength-to-density ratio, excellent corrosion resistance, and convenient electrical, magnetic, and thermal properties. However, their brittleness may impact mechanical performance depending on load rates, temperature, and environmental conditions.

Primary Function of Reinforcement: The primary function of reinforced fibers is to bear loads along the fiber length and provide strength and stiffness in one direction. In many structural applications where load-bearing capacity is crucial, FRP composites have replaced traditional metal materials.

Components of Composite Materials

Fiber:

· Carbon fiber, glass fiber, and aramid fiber are the three main types of fibers used in construction. Composite materials are often named after the reinforcing fiber, for example, CFRP representing carbon fiber-reinforced polymer. The key characteristics between fiber types are stiffness and tensile strain.

fiber

Matrix:

· The matrix should transfer forces between fibers and protect fibers from adverse effects. Thermosetting resins (thermoplastics) are predominantly used, with epoxy and vinyl ester resins being the most common matrices.

Applications of Glass Fiber Reinforced Polymer (GFRP):

Glass Fiber Reinforced Polymer (GFRP):

· Formed by melting a mixture of silica, limestone, feldspar, and other minor components.

· Recognized for its high electrical insulation properties, low moisture sensitivity, and high mechanical performance.

· Significant achievements have been made in functionality, safety, and cost-effectiveness in construction.

Applications of Carbon Fiber Reinforced Polymer (CFRP):

Carbon Fiber Reinforced Polymer (CFRP):

· Possesses a high elastic modulus, crucial for applications in prestressed concrete where high corrosion resistance and electromagnetic transparency are essential.

· Used in manufacturing deep-sea pipelines for its significantly increased buoyancy compared to steel.

· Applied in constructing structures requiring electrical neutrality.

Applications of Aramid Fiber Reinforced Polymer (AFRP):

Aramid Fiber Reinforced Polymer (AFRP):

· Aramid is an abbreviation for aromatic polyamide. Well-known trademarks include Kevlar, Twaron, Technora, and SVM.

· Known for high energy absorption, making it suitable for reinforcing engineering structures subjected to dynamic and impact loads.

Future Perspectives:

As the demand for sustainable and high-performance materials continues to rise, the application of FRP composite materials in construction, engineering, and manufacturing will expand further. SMC moulds, as critical tools in manufacturing these composite material components, will play a pivotal role in driving future advancements in materials technology.

SMC Mould and Fiber-Reinforced Polymer (FRP) Composite Materials

Sharing this technology across different industries can promote wider adoption of fiber-reinforced polymers, fostering innovation in construction structures, transportation, and other fields. In this ever-evolving field, SMC moulds and fiber-reinforced polymers will collaboratively shape future trends in material development, providing more sustainable solutions for society and the environment.

Rigorous Testing of SMC Mould after Hard Chroming Plating

MDC Mould, a leading name in the mold manufacturing industry, reaffirms its commitment to quality excellence by conducting comprehensive testing of every mold after hard chroming plating.

MDC Mould, a leading name in the mold manufacturing industry, reaffirms its commitment to quality excellence by conducting comprehensive testing of every mold after hard chroming plating. This rigorous testing process ensures that MDC’s molds are free from any quality issues before they are shipped to valued customers.

Sheet Molding Compound (SMC) mould are crucial components in various industries, including automotive and aerospace. Ensuring their quality and reliability is of paramount importance. At MDC, the dedication to delivering top-notch molds is evident through their meticulous testing procedures.

smc mould test

Key Highlights:

Quality Assurance: MDC Mould’s commitment to quality assurance is unwavering. Every mold undergoes thorough testing to guarantee its integrity and performance.

Hard Chroming Plating: The inclusion of hard chroming plating on the molds not only enhances their durability but also facilitates post-testing inspection.

Customer Satisfaction: By conducting rigorous testing, MDC Mould aims to exceed customer expectations and ensure that each mold meets the highest industry standards.

A Testimonial:

A satisfied customer shared their experience, saying, “We have been partnering with MDC Mould for years, and their dedication to quality assurance is commendable. The molds we receive are always flawless, thanks to their rigorous testing processes.”

smc mould

Looking Ahead:

MDC Mould’s commitment to delivering top-quality molds sets them apart in the industry. With their meticulous testing procedures and continuous dedication to innovation, they are poised to remain leaders in mold manufacturing.

MDC Mould is a trusted name in mold manufacturing, known for its dedication to quality, precision, and innovation. With decades of experience and a relentless pursuit of excellence, MDC Mould continues to be at the forefront of mold technology.

Application of SMC Mold in Medicine

SMC molds can be used to manufacture various parts of medical equipment. The advantages are that the material has the characteristics of high strength, corrosion resistance, high temperature resistance, etc., and has good formability and surface quality.

SMC mold (sheet molding compound mold) is a plastic mold that will be filled with resin, The compression mold of reinforcing fiber and filler is prefabricated into a sheet, and then the sheet is heated and formed in a hot mold to make a molded part. SMC molds can play an important role in medical applications, such as:

  1. Transparent containers: SMC molds can be used to manufacture transparent medical containers, such as test tubes, centrifuge tubes, petri dishes, etc. These vessels have high transparency and optical performance, which can help doctors observe processes such as cell culture, drug response and virus detection. In the manufacturing process, SMC molds can achieve different shapes and sizes through a variety of molding processes, such as stamping molding, injection molding, etc., and can achieve different optical properties through surface treatment, such as polishing, optical coating, etc.Transparent containers
  2. Operating bed: The operating bed is another important application field. The shell and base of the operating bed need to have high strength and rigidity to ensure the stability and safety of the operating bed. SMC molds can realize complex shapes and structures through mold design and molding process, and at the same time, fillers and fiber reinforcements can be added to improve strength and rigidity.Operating table
  3. Hospital beds and wheelchairs: Hospital beds and wheelchairs are also important applications of SMC molds in medicine. The shells and bases of these devices need to be high-strength and lightweight, so that patients and medical staff can move and transport. SMC molds can achieve different shapes and sizes through a variety of molding processes, and fillers and fiber reinforcements can be added to improve strength and lightweight properties.bed
  4. Diagnostic equipment: SMC molds can be used to manufacture shells and structural components of medical diagnostic equipment, such as X-ray machines, CT machines, nuclear magnetic resonance machines, etc. These devices need to have high precision and stability to ensure diagnostic accuracy and safety. SMC molds can realize complex shapes and structures through mold design and molding process, and at the same time, fillers and fiber reinforcements can be added to improve strength and stability. In addition, the surface quality of SMC molds is also very important, and different surface finishes and optical properties can be achieved through a variety of surface treatment technologies, such as grinding, painting, etc.
  5. Others: The medical device shell made of SMC mold has a smooth surface, easy to clean, and has high strength and rigidity, which can ensure the stability and safety of the device. The handles and housings of surgical instruments can also be made of SMC molds, which have high strength, rigidity and corrosion resistance, and at the same time have smooth surfaces, which are easy to clean and sterilize. The housing and base of dental equipment can be made of SMC molds, which have high strength and rigidity, and at the same time have a smooth surface, which is easy to clean and disinfect. The housing and structural parts of medical imaging equipment can be made of SMC molds, which have high precision and stability, and at the same time have a smooth surface, which is conducive to optical imaging.

In general, SMC molds can be used to manufacture various parts of medical equipment. The advantages are that the material has the characteristics of high strength, corrosion resistance, high temperature resistance, etc., as well as good formability and surface quality, as well as good optical properties, and It is also beneficial to the weight reduction of medical equipment and the reduction of manufacturing cost.

MDC Mould is a well-known mold manufacturer at home and abroad. The picture below is the MRI machine Shell Mold made by MDC Mould. The molds developed by our company have the advantages of high difficulty, long life, short cycle time, reasonable price, prompt delivery and considerate service, especially in the field of SMC molds, which are favored by customers at home and abroad. If you have any needs, welcome to contact us.

MRI shell mold

Do You Know How to Heat the SMC Mould?

In the process of mold processing, different mold materials and shapes will affect the heating method, and different heating methods will also have different effects on the performance and processing efficiency of the mold. This article will introduce in detail the common mold heating methods, their respective characteristics, applicable scenarios and their impact on SMC molds.

SMC(sheet molding compound) mould has excellent corrosion resistance, soft quality and easy engineering design, flexible and other advantages. Its mechanical properties can be compared with some metal materials, and the products manufactured by it have the advantages of good rigidity, deformation resistance, and wide temperature range. SMC molds require heating channels instead of cooling channels in injection molds. Normal heating systems are steam, oil, electricity or high pressure water. The working temperature of SMC mold is usually 140 degrees to 160 degrees. When designing the temperature system, it is necessary to keep the mold surface at a close temperature. Molds with uniform temperatures will fill more easily and produce parts with less warpage, improved dimensional stability and a uniform surface appearance.

compression molding process

In the process of mold processing, different mold materials and shapes will affect the heating method, and different heating methods will also have different effects on the performance and processing efficiency of the mold. This article will introduce in detail the common mold heating methods, their respective characteristics, applicable scenarios and their impact on SMC molds.

Electric Heating

Electric heating is a mold heating method commonly used at present. The electrothermal effect occurs on the surface of the mold by electrification, thereby heating the mold. It can be achieved by heating rods, convection heating and other different ways. Electric heating has the advantages of simple operation, fast heating speed, uniform and stable heating temperature, high temperature control accuracy, and no need to wait for heating or cooling time. It is suitable for mold heating of all materials. At the same time, electric heating can also realize the control of different temperature regions through the adjustment of heating elements, so as to realize different processing schemes and patterns. However, electric heating has a relatively large demand for electricity, and the cost of using an electric heater is also relatively high.

Electric heating is often used for heating plastic molds, especially for molds that require high precision, such as SMC molds. Compared with traditional heating methods, electric heating can control the mold temperature more precisely, so that the manufactured molds are more accurate and the shell quality is higher.

For SMC moulds, electric heating can help speed up the mold heating speed and temperature rise, thereby reducing manufacturing time, speeding up production rhythm, and improving production efficiency. performance, thereby ensuring the service life of the mold. Electric heating can also increase the hardness and strength of SMC composites, thereby improving the performance and quality of products. However, there are some factors that need to be paid attention to when using electric heating, such as the reasonable setting of voltage and current, and the control of heating time and temperature, so as to avoid affecting the performance and service life of the mold and damaging the mold.

heating rod

Steam Heating

Steam heating means that steam is transported into the mold through pipelines for heating. The temperature control of steam heating is more precise, and the heating speed is relatively fast. Steam heating is suitable for molds with complex and irregular shapes and needed temperature is not too high. However, steam heating requires a complete steam pipeline and supporting equipment. This method is more energy efficient than electric heating, but relatively consumes more energy. Steam heating is a commonly used mold heating method. Its basic principle is to use the heat energy of high-temperature and high-pressure steam to contact the mold, thereby increasing the temperature of the mold to meet the processing requirements.

This heating method has the following characteristics:

1. Uniform heating: Steam can be evenly distributed on the surface of the mold, so that the entire mold is heated evenly, avoiding thermal stress caused by excessive temperature gradient.

2. Efficient and safe: The steam heating speed is fast and the efficiency is high. At the same time, because there is no open flame in the steam heating process, it has higher safety.

3. Precise temperature control: When steam is heated, sensors can be used for real-time monitoring and adjustment, so as to achieve precise temperature control.

Steam heating is widely used in plastic molds, die-casting molds, rubber molds, etc., and can also be used for preheating and annealing of metal molds.

For SMC molds, SMC molds are usually made of composite materials, which have high strength and corrosion resistance, but there are also some shortcomings, such as thermal stress and surface adhesion. The uniformity of steam heating and the accuracy of temperature control can effectively solve these problems, avoiding the thermal stress caused by the local temperature being too high or too low during the heating process. At the same time, steam heating can also promote the fluidity of SMC materials, thereby improving the molding quality and production efficiency of products.

Steam mold temperature controller

Oil Heating

Oil temperature heating, also called heat conduction oil heating. It means that the electric heating tube is placed in the heating oil tank, and the high-temperature heat transfer oil is used to transfer heat to the mold for uniform heating and maintain a certain temperature range. This method is easier to control the temperature, can achieve precise temperature control, and heat evenly, so as to ensure that the mold will not be damaged due to excessive temperature. Heat conduction oil can transfer high-speed heat and heat up quickly, so it is suitable for some bigger and complex shapes molds and molds that require high temperature heating. At the same time, heat conduction oil heating can also maintain the flatness of the mold surface during mold making and processing, avoid problems such as slack and cracks, and make the mold surface deform more uniformly, and it is not easy to appear towering and uneven. However, oil temperature heating also has some disadvantages, for example, the heat transfer oil needs to be replaced frequently during operation, and the heating speed is relatively slow.

For SMC molds, heat conduction oil heating can reduce the internal stress left by shrinkage during processing, make the mold more uniform, and is more effective than electric heating in processing time, which can speed up the production efficiency of the mold, and can also avoid material overheating damage. However, some matters need to be paid attention to during the heating process of heat transfer oil, such as heating on site and safety protection measures.

Oil temperature machine

The above are common heating methods, and the selection of different mold heating methods depends on factors such as mold material, shape and processing requirements.

As a professional SMC mold supplier, MDC Mould have experienced engineers, imported equipment, precise processing flow, years of research in SMC mold design and SMC mold technology, and a supporting SMC mold trial line to ensure that SMC molds can meet customer needs from initial design to subsequent mass production.

Advanced Measuring Equipment and SMC Molds: Precise Control of Quality and Optimization of Production Processes

As an important composite material mold, SMC mould is widely used in automobile, aerospace, electronics and other fields. Its production process requires strict control of parameters such as the size, shape, and position of the mold to ensure stable and consistent product quality. However, traditional measurement methods, such as manual measurement and traditional measuring instruments, have problems such as low measurement accuracy and low measurement efficiency, which are difficult to meet the requirements of SMC mold production. And advanced measuring equipment and instruments, such as Three coordinate measuring instrument, have been widely used in the production of SMC molds due to their high precision, high efficiency and multi-functional characteristics.

The basic principle and structure of CMM

The Coordinate Measuring Machine(CMM) is a measuring device based on a three-dimensional coordinate system. Its basic principle is to obtain the position and shape information of the object in the three-dimensional space by measuring the movement of the probe on the three coordinate axes, so as to realize the precise measurement of the object. and detection. A Coordinate Measuring Machine usually consists of a coordinate measuring system, a measuring probe, a workbench, a computer and related software.

CMM structure

The coordinate measurement system is the core component of a Coordinate Measuring Machine, usually composed of three mutually perpendicular measurement axes and corresponding sensors, used to measure the position of the probe on the three coordinate axes. The measuring probe is the part that is in contact with the object to be measured. It can trigger the measurement action through the trigger, and transmit the measurement result to the computer for processing through the sensor. The workbench is used to place and fix the measured object, and usually has high-precision planes and fixtures to ensure the stability and accuracy of the measurement. The computer and related software are used to control the movement of the measuring instrument, process the measurement data, and generate measurement reports and data analysis.

triple coordinate admeasuring apparatus structure

Features of CMM

Coordinate Measuring Machine has many advantages that make it one of the advanced measuring equipment.

  • High precision: The Coordinate Measuring Machine adopts advanced sensor technology and measurement algorithm, and has a high degree of measurement accuracy, usually at the micron level. This enables it to meet the measurement requirements for high-precision products, especially in SMC molds, and can accurately measure parameters such as the size, shape and position of the mold.
  •  High efficiency: The Coordinate Measuring Machine has a fast measurement speed and an automated measurement process, which can greatly improve the measurement efficiency. At the same time, it can also realize the rapid detection and sorting of large batches of molds through the application of batch measurement and automatic measurement procedures, thereby improving production efficiency.
  •  Multifunctional: The Coordinate Measuring Machine can not only measure parameters such as size, shape and position, but also perform complex measurement tasks such as shape and position tolerance measurement, curved surface measurement, and contour measurement. At the same time, it can also perform data analysis, report generation, CAD comparison and other functions to help users conduct comprehensive quality control and data analysis.
  •  Non-contact measurement: The Coordinate Measuring Machine usually adopts a non-contact measurement method to avoid contact with the measured object, thereby avoiding measurement errors and damage to the object. This is especially important for SMC molds that require high surface quality, and can ensure the integrity and quality of the mold.

Application of CMM in SMC mould

CMM is widely used and important in SMC mold production. The following are its main applications in SMC mold production:

  1.  Mold size measurement: The Coordinate Measuring Machine can quickly and accurately measure the size of the SMC mold, including parameters such as length, width, height, and diameter. This is very important to ensure that the size of the mold meets the design requirements and ensure the accuracy and consistency of the product.
  2.  Mold shape measurement: The Coordinate Measuring Machine can measure the complex shape of the SMC mold, including surface shape, contour shape, etc. It can realize comprehensive and accurate measurement of the shape of the mold through high-precision sensors and measurement algorithms to ensure that the shape of the mold meets the design requirements.
  3.  Mold position measurement: The Coordinate Measuring Machine can measure the position of the mold in three-dimensional space, including the position, posture and relative position of the mold. This is very important to ensure the positioning accuracy of the mold, the matching accuracy of adjacent parts, and the assembly and disassembly of the mold.
  4.  Shape and position tolerance measurement: SMC molds usually need to meet certain shape and position tolerance requirements to ensure the assembly and use performance of the product. The Coordinate Measuring Machine can measure the shape and position tolerance, including parallelism, perpendicularity, position tolerance, angle tolerance, etc., to help ensure that the shape and position tolerance of the mold meets the design requirements.
  5.  Mold quality control: The Coordinate Measuring Machine can carry out comprehensive quality control on SMC molds. Through the analysis and comparison of measurement data, it can judge whether the mold is qualified, provide measurement reports and data analysis, and help manufacturers find and solve molds in time. Quality issues, to ensure the quality stability and consistency of the mold.
  6. Mold improvement and optimization: CMM can also be used for mold improvement and optimization. By analyzing the measurement data of the mold, the existing problems and potential improvement space of the mold can be found out, and a scientific basis can be provided for the optimal design and production of the mold.
Coordinate Measuring Machine

To sum up, the Coordinate Measuring Machine has important application value in the production of SMC molds, which can ensure the accurate measurement and quality control of parameters such as the size, shape, position and geometric tolerance of the mold, and help manufacturers improve product quality and reduce reduce production costs and improve production efficiency.

As a professional SMC mould manufacturer, MDC Mould have a lot of equipment and measuring and testing instruments continuous improvement. We have purchased advanced measuring equipment and instruments such as imported Coordinate Measuring Machine, which allow us to understand the quality situation of each product, process, and standard, and provide the best service for our quality control department. Our QC department will conduct product inspection and submit test report within 24 hours after mold test. The report will include comprehensive testing and analysis on product size, appearance, injection technology and physical parameters. We use different inspection standards and tools for different products. In our laboratory, we have carried out different tests on high pressure injection, high speed injection, clamping time, etc. The quality control department proposes modification and improvement suggestions for unqualified products. We have accumulated rich experience and applied it in mold production to provide customers with good solutions.

Technical Inspection

Good Quality of SMC Molds Come from Good Die Design

In modern manufacturing, mold is a key production tool, which is widely used in the manufacturing process of various products. In the production of composite products, Sheet Molding Compound (SMC) mold is a special type of mold. SMC is a high-performance composite material composed of resin, glass fiber and fillers. It has the advantages of light weight, high strength and corrosion resistance. It is widely used in automotive, aerospace, construction and other fields. However, in order to produce high-quality SMC products, die design is a crucial link.

Die design refers to the comprehensive consideration of various factors such as reasonable mold structure, material selection, product design and mold processing in the manufacturing process of SMC molds, so that the mold can be realized in the production process efficient and stable production, and guarantee the quality and performance of the final product. High-quality SMC mold design should have the following characteristics.

Reasonable mold structure

Reasonable mold structure is the basis of high-quality SMC molds. The rationality of the mold structure directly affects the molding quality and production efficiency of SMC products. When designing the mold structure, factors such as the fluidity, shrinkage, and shrinkage rate of the SMC material need to be considered to ensure that the SMC material can fully flow in the mold cavity and fill every detail when the mold is closed. At the same time, the mold structure should take into account the shrinkage and deformation of the product to ensure the dimensional accuracy and shape consistency of the final product. In addition, a reasonable cooling system design is also a part that cannot be ignored in the mold structure, which can effectively control the mold temperature, improve production efficiency and prolong the life of the mold.

car-door-trim-mold-design

Release performance of SMC mold

SMC materials usually require a long curing and hardening process in the mold, therefore, the release performance of the product has a direct impact on the life of the mold and production efficiency. Reasonable product design should include proper demoulding slope, demoulding sequence, demoulding force, etc., so that when the mold is demolded, it can be easily separated from the mold without damaging the product or the mold.

smc mold making

Characteristics of SMC materials

Product design also has an important impact on the quality and performance of SMC molds. Product design should fully take into account the characteristics of SMC materials, including its fluidity, shrinkage, molding difficulty, etc. Reasonable product design can reduce the internal stress and deformation of SMC materials during the molding process, thereby ensuring the dimensional accuracy and appearance quality of the final product. In product design, it is necessary to reasonably set parameters such as product wall thickness, line angle, corner radius, etc., so as to obtain good filling effect and finished product quality during mold molding.

mold

suitable material selection

The mold material should have the characteristics of high strength, high hardness, wear resistance and corrosion resistance, so as to ensure that the mold will not have problems such as deformation, wear and corrosion during the long-term production process. At the same time, the mold material should also have good thermal conductivity in order to better control the mold temperature and improve production efficiency. In terms of material selection, it is necessary to comprehensively consider factors such as the use environment of the mold, production batch, product requirements, etc., and choose a suitable mold Material.

Structural Strength and Stability

SMC products usually need to have high strength and stability to meet their requirements in practical applications. In product design, it is necessary to fully consider the mechanical properties of SMC materials, and reasonably set the wall thickness, ribs, support structures, etc. of the product to ensure the strength and stability of the final product.

Precision and quality of mold processing

High-precision mold processing can ensure the dimensional accuracy and shape consistency of the mold, thereby ensuring the quality of the final product. In mold processing, it is necessary to pay attention to the dimensional control, surface finish, surface coating, etc. of the mold to ensure the appearance quality and performance of the final product. At the same time, high-quality equipment can also improve the precision of the mold.

compression seat mold
top panel mold

In conclusion, a good quality SMC mold comes from a good die design. Reasonable mold structure, appropriate material selection, full consideration of product design, and high-precision mold processing are all important factors to ensure the quality and performance of SMC molds. In the design and manufacturing process of SMC molds, the above factors need to be considered comprehensively to ensure that the molds can achieve efficient and stable production in the production process, and produce high-quality SMC products to meet the ever-growing market demand.

As a professional mold maker, MDC Mould has a team of experienced engineers using the latest engineering tools and software to help you build high-quality SMC mold. This also enables our tooling engineers to create the best and most cost-effective tooling for your project requirements. We can review your CAD files or part drawings and provide feedback on possible quality issues or areas for improvement to help ensure your product is manufacturable. We support a wide variety of file formats, including major software. MDC Mould can also create a full 3D model of your target part, or we can convert your 2-D drawing into a 3-D solid CAD model. If you have any needs, welcome to contact us.

3d mold

SMC compression moulding

SMC (Sheet Molding Compound) compression moulding is a manufacturing process used to produce composite materials. It involves compressing a pre-prepared mixture of chopped fibers, typically glass or carbon, and a thermosetting resin, such as polyester or epoxy, between two heated moulds to create a finished part.

Why Compression Moulding are Used in the Process for SMC Composites?

The Process of SMC Compression Moulding:

  1. Preparing the SMC: Sheet Molding Compound is typically produced by mixing chopped fibers (such as glass or carbon) with a thermosetting resin, along with other additives such as fillers, pigments, and release agents. The mixture is typically in the form of a sheet or a mat.
  2. Placing the SMC in the mould: The SMC sheet is placed in the mould, which is usually made of steel and consists of two halves that can be opened and closed. The mould is typically coated with a release agent to prevent the SMC from sticking to the mould during the curing process.
  3. Closing the mould: The two halves of the mould are closed, and pressure is applied to compress the SMC sheet. The pressure is typically applied hydraulically and can range from several hundred to several thousand pounds per square inch (psi), depending on the specific material and part requirements.
  4. Heating and curing: The closed mould, with the compressed SMC, is heated to a specific temperature, typically in the range of 120 to 180 degrees Celsius (250 to 356 degrees Fahrenheit), depending on the resin used. The heat causes the thermosetting resin to cure and harden, forming a solid composite part.
  5. Cooling and demoulding: After the curing process is complete, the mould is cooled, and the pressure is released. The mould is then opened, and the finished SMC part is demoulded. The part may require additional trimming, drilling, or other post-processing operations to achieve the desired final shape and finish.
smc moulding

As a professional and world-famous mold manufacturer, MDC Mould specialize in SMC mold, compression mold. The company has a skilled and experienced R&D team, as well as a group of high-quality production workers, committed to providing customers with the best quality mold solutions. If you have any need, please feel free to ask us.