Metal Injection Mold

Custom Metal Injection Mold

Yize Mould provides customized metal injection mold design and manufacturing services, conducting systematic development based on product structure, material properties, and sintering shrinkage rate. Through precise shrinkage compensation calculations and reasonable gate and venting designs, it ensures stable molding and consistent dimensions of complex metal parts. The molds are made of highly wear-resistant mold steel and undergo surface strengthening processes, balancing precision, lifespan, and efficiency. One-stop services covering product evaluation, mold design, trial mold optimization, and mass production are supported.

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Technology and Process

Customizing Metal Injection Molds is a precise and complex task. Its core lies in accurately predicting and compensating for the shrinkage behavior of materials during the molding and sintering processes, while ensuring that the metal powder feedstock uniformly fills the mold cavity. This relies on a profound, integrated understanding of material science (powders and binders), fluid mechanics (feedstock flow), thermodynamics (cooling and sintering), and precision machining (mold manufacturing). Close collaboration with experienced MIM suppliers from the product design stage is crucial for ensuring project success and reducing costs.

Mold Design and DFM Analysis

Based on the part structure, dimensional accuracy, and operating conditions, a Design for Manufacturability (DFM) analysis is conducted. Key evaluations focus on sintering shrinkage rate (typically 15%–20%), wall thickness uniformity, ejection direction, and tolerance requirements. Precise dimensional compensation designs are completed, while gating, runner, and venting plans are simultaneously developed to ensure stable feedstock filling and uniform powder distribution.

Mold Manufacturing and Trial Mold Verification

High wear-resistant, high-hardness mold steels or powder metallurgy high-speed steels are selected, with precision machining and surface strengthening processes employed to enhance mold lifespan and stability. Through multiple rounds of trial molding, key aspects such as molding filling, ejection stability, and green part strength are verified, with optimization adjustments made to critical dimensions and molding parameters.

Process Optimization and Mass Production

Combining debinding and sintering process parameters, the mold structure and molding conditions are finalized and optimized to ensure consistent dimensional accuracy and stable yield during mass production. This enables efficient and reliable mass production of complex precision metal parts.

Introduction to Yize Mold's Processing Capabilities

Yize Mold boasts a workforce of 170 employees, equipped with 25 EDM machines, 49 grinding machines, 51 grinding and milling machines, 7 wire-cutting machines, 18 CNC and CNC lathes, 27 punching machines and other equipment, 30 injection molding machines, one complete set of Metal Injection Molding (MIM) full-process equipment, and over 80 sets of testing instruments. Our processing services encompass precision parts, injection molds, special injection molding, cleanroom injection molding, LSR molding, and metal injection molding. We provide efficient and reliable precision component and injection molding processing services, ensuring high-quality, high-precision, and timely delivery of products.

2006

Founded in

0.005mm

Min. tolerance

170

Employees

220

Processing Machines

Case Study on Customized Metal Powder Injection Molds

Metal Injection Molding (MIM) is a near-net-shape technology that combines the flexibility of plastic injection molding with the performance advantages of powder metallurgy. It enables the efficient one-step molding of complex, miniature, and precision metal parts that are challenging to manufacture using traditional processes, while delivering performance characteristics close to those of forged components. With its high material utilization rate, exceptional batch consistency, and broad material adaptability, MIM technology has emerged as a core solution for the mass production of high-end precision components in fields such as medical devices, consumer electronics, and automotive industries.

Surgical forceps, tweezers, scissors, micro-graspers, instrument mechanism parts, joint replacement components, dental implants, precision endoscopic parts

Metal Injection Mold for Medical Devices

The reason why MIM technology is highly favored in the medical field is primarily because it can effectively meet the stringent requirements of medical devices in terms of complexity, precision, biocompatibility, and cost-effectiveness for mass production.

Available Materials:	Stainless Steel 304/316L/17-4PH Alloy Steel Titanium Alloy Special Alloy Materials
Post-processing Techniques:	Polishing, Turning, Milling, Grinding, EDM, CNC, etc.
Price:	Negotiable
Production Lead Time:	Subject to product complexity, typically 15–20 days

Hinges, housing structural components, shock-absorbing parts for unmanned aerial vehicle (UAV) gimbals, heat dissipation device parts, transmission components

Metal Injection Mold for Consumer Electronics

MIM enables the one-step molding of complex three-dimensional structures that are difficult or even impossible to achieve through traditional machining methods (such as CNC), such as components with internal cavities, complex curved surfaces, and fine holes. This is crucial for consumer electronics products that pursue ultimate space utilization and functional integration.

Available Materials:	Stainless Steel 304/316L/17-4PH Alloy Steel Titanium Alloy Special Alloy Materials
Post-processing Techniques:	Polishing, Turning, Milling, Grinding, EDM, CNC, etc.
Price:	Negotiable
Production Lead Time:	Subject to product complexity, typically 15–20 days

Filter cavities, antenna tuning components, optical module housings

Metal Injection Mold for Communication Equipment

Metal Injection Molding (MIM) technology plays a pivotal enabling role in the manufacturing of communication equipment. It can form complex precision structures in one piece that are difficult to achieve through traditional processing methods, such as the internal cavities of 5G filters, antenna tuning components, and optical module housings. While ensuring excellent electromagnetic performance and signal integrity, it achieves extremely high material utilization and production consistency. This technology perfectly aligns with the core needs of the communication industry for high-performance, miniaturization, and large-scale reliable mass production of equipment, serving as an advanced manufacturing cornerstone supporting the upgrade of 5G and future communication technologies.

Available Materials:	Stainless Steel 304/316L/17-4PH Alloy Steel Titanium Alloy Special Alloy Materials
Post-processing Techniques:	Polishing, Turning, Milling, Grinding, EDM, CNC, etc.
Price:	Negotiable
Production Lead Time:	Subject to product complexity, typically 15–20 days

Fixed and movable mold bases, cores and cavities (mold inserts), slider and cam mechanisms, ejector pin and ejector plate systems, guide pins, guide bushings

Metal Injection Mold for Automotive

Die-casting molds are primarily applied in the high-pressure molding processes of metal materials such as aluminum alloys, magnesium alloys, and zinc alloys. They are essential equipment for producing high-precision metal components in industries such as automotive, electronics, home appliances, communication, and aviation. The design and manufacturing precision of the parts directly determine the dimensional stability, surface finish, and mold life of the castings.

Available Materials:	Stainless Steel 304/316L/17-4PH Alloy Steel Titanium Alloy Special Alloy Materials
Post-processing Techniques:	Polishing, Turning, Milling, Grinding, EDM, CNC, etc.
Price:	Negotiable
Production Lead Time:	Subject to product complexity, typically 15–20 days

Mold sleeves, upper and lower punches, cavity mold cores, ejection mechanisms and demolding assemblies, limit rings and locating pins

Metal Injection Mold for Precision Tools

Powder metallurgy molds are key equipment centered around the pressing and forming of metal powders, used for the production of high-density, high-hardness, and complex-structured components. Their precision and wear resistance directly determine the dimensional stability and consistency of the finished products, serving as an important foundation in the field of precision manufacturing.

Available Materials:	Stainless Steel 304/316L/17-4PH Alloy Steel Titanium Alloy Special Alloy Materials
Post-processing Techniques:	Polishing, Turning, Milling, Grinding, EDM, CNC, etc.
Price:	Negotiable
Production Lead Time:	Subject to product complexity, typically 15–20 days

Punch, die, blank holder, ejection device, stripper plate and guiding components

Metal Injection Mold for Semiconductor Equipment

Stretching molds are a type of mold system used to form metal sheets into hollow or curved parts through mold forming. They are key equipment in sheet metal forming and metal manufacturing. Their precision and durability directly determine the surface quality, dimensional stability, and production efficiency of the products.

Available Materials:	Stainless Steel 304/316L/17-4PH Alloy Steel Titanium Alloy Special Alloy Materials
Post-processing Techniques:	Polishing, Turning, Milling, Grinding, EDM, CNC, etc.
Price:	Negotiable
Production Lead Time:	Subject to product complexity, typically 15–20 days

Data of Liquid Silicone Injection Molding

Item	Parameter
Design accuracy of the whole mold set	±0.005 mm
Minimum thin-wall thickness achievable in injection molding	0.25 mm
Minimum injection molding tolerance achievable	±0.3%
Mold material selection	S136, DC53, 2344, ASP
Optional injection molding materials	304, 316L, 17-4ph, PANACEA, ultra-high strength steel, TC4 titanium alloy, 420W, F75
Mold life	300,000-500,000 times
Technical application	Industrial components, hardware fittings, smart wearables for consumer electronics, 3C electronics, automotive parts, etc.
Injection molding size	MAX 320mm, 450g
Gate design	Pin-point gate, hot runner, side gate, etc.
Type of designed mold	Cold/hot runner mold
Delivery time	Approximately 28 days, subject to negotiation

Our Comapny Profile

Yize Mould’s main business covers precision parts processing, injection mold design and manufacturing, cleanroom injection molding etc.

Steps for metal injection mold

Through a systematic six-step process, customized metal powder injection molds can enable the high-quality and consistent mass production of complex and precision metal parts via Metal Injection Molding (MIM), effectively reducing post-processing costs and meeting the stringent requirements for performance and reliability in high-end industries.

/01 Product Evaluation and DFM Analysis

Evaluate the part structure, dimensional tolerances, and usage requirements, analyze wall thickness, demolding direction, and sintering shrinkage rate to provide a basis for mold design.

/02 Mold Concept and Structural Design

Based on the characteristics of MIM feedstock, complete cavity size compensation design and optimize the gate, runner, and venting structures to ensure uniform and stable filling.

/03 Mold Material Selection and Manufacturing

Select high-hardness, high-wear-resistant mold steel and combine precision machining with surface strengthening processes to enhance mold accuracy and service life.

/04 Mold Trial and Molding Verification

Conduct multiple rounds of mold trials, focusing on verifying molding filling, ejection stability, and green compact strength, and adjust and optimize key dimensions accordingly.

/05 Debinding and Sintering Matching Optimization

Combine subsequent debinding and sintering processes to make final corrections to mold dimensions and molding parameters, ensuring dimensional consistency of the finished products.

/06 Mass Production Stabilization and Continuous Optimization

Once the mold enters stable mass production, continuously optimize the process based on production data to ensure long-term stability in batch production.

Yize Mould
Metal Injection Mold Solutions Provider

Yize Mould provides integrated MIM (Metal Injection Molding) solutions for metal injection molds, achieving stable molding of complex and precision metal parts through precise shrinkage compensation design and optimized gating and venting structures. The molds feature high wear resistance, long service life, and exceptional consistency, deeply matching debinding and sintering processes to facilitate high-quality, cost-effective mass production in fields such as medical, 3C electronics, and automotive industries.

Metal Steels

Metal injection molding of high-nitrogen nickel-free stainless steel, high-polish 316L stainless steel, TC4 titanium alloy, ultra-high-strength steel, low-density steel, and other metals is particularly well-suited for manufacturing parts with stringent requirements for surface finish, hygiene standards, and structural precision.

Ceramics

Ceramic injection molding, leveraging the high hardness, wear resistance, and high insulation properties of ceramics, indeed combines the superior characteristics of ceramic materials with the design freedom of injection molding, offering significant advantages in manufacturing precision ceramic parts with complex shapes.

Other Hybrid Materials

713C/F57 high-temperature alloys typically possess excellent high-temperature strength, good oxidation resistance, and thermal corrosion resistance. The advantage of the MIM process lies in its ability to fabricate complex structural components while maintaining their inherent high performance.

A Trustworthy Metal Injection Molding Manufacturer

Dongguan Yize Mould Co., Ltd. was established on January 1, 2006, with 170 employees, and is located in Chang’an Town, Dongguan City, known as the “Key Town of China’s Mould Industry”.

Since its establishment, Yize has always focused on technology as its core, specializing in the OEM sector of precision molds, precision metal and plastic components. The company has gradually expanded its business scope to encompass comprehensive solutions for precision mold components, precision injection molds, injection molding of special materials, cleanroom injection molding, silicone injection molding, and precision structural parts via MIM (Metal Injection Molding) metal powder injection molding.

Yize Mould continuously innovates and develops, becoming a leader in the field of high-end precision mold manufacturing and related products, and is a trustworthy manufacturer of metal injection molding.

Applications

Metal injection molds are widely applied in industries such as medical devices, automotive parts, electronic communications, consumer electronics, and non-standard automation for industrial equipment, thanks to their advantages of enabling one-step molding of complex structures with high precision and consistency. This technology meets the demands for high strength, corrosion resistance, and miniaturization while being suitable for medium-to-large batch production, effectively reducing overall manufacturing costs. It serves as an important manufacturing solution for precision metal components.

Why Choose Us?

/01
Professional Team

Yize Mould has been specializing in precision mold parts, precision molds and MIM products since 2006, and today boasts a professional team of 150 people who can quickly respond to customer needs.

/02
Advanced Equipment

The company owns multiple advanced processing equipment imported from the United States, Japan, and other places. MIM precision can reach 0.3%.

/03
Quality Assurance

Yize Mould always adheres to the principle of quality first, with over 50 precision testing instruments and a professional quality management team to ensure that no defective products reach our customers!

Demonstration of Custom Metal Injection Mold Capabilities

MIM (Metal Injection Molding) technology for non-standard precision parts processing enables efficient and cost-effective manufacturing of complex metal components while ensuring consistent performance and quality stability. It serves as a crucial forming process for high-end precision parts. When combined with post-processing treatments (such as polishing, electroplating, PVD coating, and machining), it finds widespread applications in industries including medical, automotive, electronic communications, consumer electronics, and industrial equipment.

Precision: Our non-standard precision parts are manufactured using high-precision processes, ensuring accurate dimensions and shapes to meet stringent technical requirements.
High-Quality Materials: We utilize high-grade metal powders and other durable metallic materials, ensuring excellent corrosion resistance and durability of the components.
Surface Treatment: The surfaces of the components undergo meticulous treatment, including polishing, PVD, electroplating, anodizing, etc., to extend their service life.
Diverse Designs: We provide mold components in various specifications and models based on customer drawings, meeting the needs of equipment and tools across different industries with high flexibility and adaptability.
Rust Prevention and Maintenance: All MIM metal powders possess rust-resistant properties, offering slight to complete rust prevention.
Wide Applications: Suitable for a variety of industries, such as automotive, daily tools, healthcare, consumer electronics, communications, etc., with a broad range of applications.

High Complexity and High Precision Integrated Molding

Metal Injection Molding combines the molding capabilities of plastic injection molding with the material properties of powder metallurgy, enabling the one-step formation of metal parts with complex structures, thin walls, miniature dimensions, or internal holes, thereby avoiding multiple machining processes. The finished products exhibit high dimensional accuracy (tolerances can reach ±0.3% to ±0.5%) and excellent consistency, making them particularly suitable for precision structural components and mass production.

Material Properties Close to Forged Parts

MIM parts can achieve a density of 96% to 99%, with mechanical properties approaching or even matching those of forged parts, while also offering high material utilization and minimal waste. Compared to traditional CNC machining or precision casting, MIM significantly reduces the overall cost per unit in medium to large-scale production, balancing performance with cost-effectiveness.

FAQs

Does MIM mold suffer from significant dimensional deviations after sintering, resulting in unstable finished products?

Accurate shrinkage calculations are conducted during the mold design stage, taking into account the material system and sintering process, and compensation values are continuously refined through multiple rounds of mold trials and dimensional verification to ensure consistent batch dimensions.

Is there insufficient filling or powder separation during the MIM mold forming process?

Optimize the gate location, runner length, and venting structure, and control the feedstock shear rate to achieve uniform powder distribution, avoiding defects such as short filling and porosity.

Does the MIM mold green compact experience deformation or cracking during ejection?

Adopt a multi-point uniform ejection design, reasonably set the draft angle, and finely polish the cavity to reduce ejection resistance and protect the integrity of the green compact.

Does the MIM mold suffer from severe wear and a short service life?

Select high-hardness, high-wear-resistant mold steel or powder high-speed steel, and apply surface strengthening treatments such as nitriding and PVD coating to improve mold wear resistance and stability.

What is the accuracy and density of MIM products?

MIM parts can achieve a relative density of 96%–99%, with dimensional tolerances typically controlled within ±0.3% to ±0.5%. For areas requiring high precision, secondary finishing can further enhance accuracy.

Does the MIM mold experience significant yield fluctuations and poor consistency during mass production?

Through collaborative optimization of the mold temperature control system and forming process, stable forming conditions are achieved, resulting in high yield and consistency during long-term mass production.

Do MIM products experience dimensional shrinkage issues?

During the debinding and sintering processes, MIM parts undergo approximately 15%–20% volumetric shrinkage. Through scientific mold compensation design and mature process control, stable and consistent dimensional accuracy can be achieved.

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