Metal Injection Molding

Metal injection molding technology is widely used in various industries. It can manufacture small precision components such as gears, nozzles, connectors, etc., as well as large structural components such as surgical tools, weapon components, etc. MIM provides designers and manufacturers with greater design freedom and flexibility, while meeting the high-quality and high-performance requirements of metal parts

We provide customized solutions for different industries, from aerospace, medical components, electronics to the new energy industry, and more. CNC machining ensures the accuracy and quality of products.

At XYC, our ISO certified CNC workshop is specifically designed for rapid prototyping and small batch production of end use components. XYC CNC Factory provides you with 24-hour quotation service and rapid production of samples. We are your best choice for machining parts and can customize manufacturing according to your project requirements.

Metal injection molding is suitable for stainless steel, iron-based alloys, magnetic materials, tungsten alloys, hard alloys, fine ceramics and other series. The prepared parts are widely used in aerospace industry, automotive industry, military industry, medical, mechanical industry, daily necessities and other fields.

1. It can minimize the segregation of alloy components and eliminate the unevenness of the cast microstructure.

2. It can be used in a series of high-performance non-equilibrium materials such as amorphous and microcrystalline, crystal preparation, nanocrystals, supersaturated solid solutions, etc. These materials have excellent electrical, magnetic, optical, and mechanical properties.

3. Metal powder injection molding technology can achieve near net forming and automated mass production, effectively reducing the consumption of production resources and energy.

4. Materials and products with special structures and properties produced by ordinary smelting methods can be produced, such as new porous materials, porous separation membrane materials, high-performance structural ceramic abrasives, and ceramic materials.

It is a new technology that can fully utilize the scale of ore, tailings, steelmaking sludge, and steel rolling plants to recover metal waste as raw materials, which can effectively carry out material recovery and comprehensive utilization.

What is the difference between metal injection molding and casting?

Principle:

Metal injection molding: Metal injection molding is a process of manufacturing metal parts by mixing metal powder with polymer solution through injection molding. During the injection molding process, a process mixture of metal powder and polymer solution that can be injected evaporates under high temperature conditions to remove acetone and form dense metal parts.

Casting: Casting is a process of manufacturing metal parts by cooling and solidification in a pre prepared mold of melted metal parts. The metal parts are injected into the mold and cooled to form the desired part shape.

Process characteristics:

Metal injection molding: Metal injection molding can manufacture metal parts with complex geometric shapes and details, and high dimensional accuracy. It can also produce a high proportion of metal powder mixtures to determine specific material compositions and properties. However, this process is typically suitable for small and medium-sized parts.

Casting: Casting can manufacture metal parts of various shapes and sizes, including large and complex parts. Casting can be mass-produced and has relatively low costs. However, compared to metal injection molding, the dimensional accuracy and details of casting may be lower.

Material:

Metal injection molding: Metal injection molding is suitable for a series of metal materials, including stainless steel, tungsten alloys, iron-based alloys, nickel based alloys, etc. This type of process can also use powder metallurgy materials, such as hard alloys and magnetic materials.

Casting: Casting can use a wide range of metal materials, such as iron, aluminum, copper, magnesium, zinc, and various alloys.

Application field:

Metal injection molding: Metal injection molding is commonly used to manufacture small and complex metal parts, such as medical devices, electronic devices, automotive components, and tools.

Casting: Casting is widely evaluated in various industries, including automotive, aerospace, construction, energy, and metallurgy. Used for manufacturing various metal parts, structural components, and industrial equipment.

What are the problems with metal injection molding?

Metal Injection Molding (MIM), as an advanced manufacturing technology, has many advantages, but there are also some challenges and problems:

Material cost: MIM uses a mixture of metal powder and polymer acetone, which means expensive metal powder needs to be purchased. The cost of metal powder is usually higher than the raw material cost required for traditional casting or processing.

Start cost: Compared to traditional metal processing methods, MIM has higher equipment and tool costs. This may be a challenge for small and medium-sized manufacturers, requiring increased investment.

Design limitations: MIM has the ability to manufacture complex geometric shapes and details, but there are still some design limitations. For example, the uniformity of wall thickness, dimensional stability, and the manufacturing of large parts may be limited.

Mold wear: The molds used by MIM are usually made of materials with lower wear resistance, and metal powder will exert certain wear and impact on the molds during the injection process. Therefore, the wear of the mold is relatively worn and requires regular maintenance and replacement.

Plasticization process: The plasticization process of MIM requires a mixture of metal powder and polymer dispersant to be injected into the mold. This process may be affected by the viscosity and flowability of polymer dispersants, and requires careful control and adjustment.

Sintering shrinkage: In the MIM molding process, the plasticized components need to be sintered to enhance the catalyst and form metal parts. During the sintering process, the metal powder may experience shrinkage, which may lead to deformation and shape distortion.

Surface: Parts manufactured by MIM usually require subsequent surface treatments, such as adding an oxide layer, polishing treatment, spraying, etc. This increases the time and cost of the manufacturing process.

Is metal injection molding common?

Metal Injection Molding (MIM) is an advanced metal processing technology that has been widely used in certain specific fields compared to traditional metal processing methods such as casting and mechanical processing. The following are some common application areas of MIM:

Automotive Industry: MIM is used to manufacture automotive components such as sensor components, actuators, pump bodies, valves, transmission system components, fuel nozzles, etc. MIM can provide high-precision, complex shapes, and excellent mechanical performance, thus meeting the demand for high-quality supply in the automotive industry.

Medical devices: MIM is widely used in the field of medical devices, for manufacturing surgical tools, entry devices, surgical instruments, medical devices, etc. MIM can manufacture complex instrument structures and small components, and provide biocompatibility and material resistance to corrosion.

Electronic devices: MIM is commonly used to manufacture key components of electronic devices, such as connectors, terminals, conductive components, electromagnetic light-emitting components, etc. MIM can achieve high-density and high-precision part manufacturing, meeting the requirements for miniaturization and performance in electronic products.

Industry: MIM is evaluated for manufacturing industrial equipment and key components such as valves, tools, gears, and embedded parts. MIM can provide high-strength, wear-resistant, and corrosion-resistant metal parts that are suitable for the working environment and heavy load conditions of databases.

Defense and Aerospace: MIM is widely evaluated in the field of defense and aerospace, used to manufacture precision components and components such as missile components, aviation engine components, spacecraft connectors, etc. The parts and material properties of MIM meet the strict quality and reliability requirements of these industries.

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