Metal Injection Molding

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Metal Injection Molding (MIM)

Precision, Complex Parts, and Cost-Effectiveness

Are your parts small and complex? Metal Injection Molding (MIM) might be your solution.

Metal Injection Molding (MIM) stands at the forefront of manufacturing innovation, offering unparalleled efficiency, versatility, and precision for engineers and designers seeking high-performance, intricate metal parts.

At Advanced Powder Products (APP), we bring your designs to life using state-of-the-art MIM processes to ensure components of high strength, dimensional accuracy, and cost-effectiveness. Whether your project requires complex parts with intricate features or high-volume production, our unique MIM technology and expertise in alloys enable seamless and rapid engineering of high-quality components tailored to meet your requirements.

What is Metal Injection Molding

Metal Injection Molding (MIM) is a cutting-edge, transformative technology that combines the flexibility of plastic injection molding with the durability and robustness of metals. This process utilizes fine metal powders blended with a binder material to create a moldable feedstock.

Complex Parts

The MIM Process at a Glance

1

Feedstock Compounding

Fine powdered metal is mixed with a binder to form a moldable feedstock.

MIM Feedstock
2

Injection Molding

The feedstock is injected into molds, forming intricate "green parts." These are slightly oversized to account for shrinkage during later stages. Our advanced tooling allows us to mold parts with multiple cavities, increasing production efficiency and consistency.

MIM Green Part
3

Debind & Sintering

The green part goes through a chemical process where the majority of the binder is removed, leaving a "brown part." The brown part is heated to near-melting temperatures, densifying the material to its final geometry. MIM is particularly well-suited for producing components with exceptional strength, making it a preferred choice for demanding applications.

MIM Brown Part
4

Secondary Operations

Optional finishing processes like sizing, heat treating, or coating further enhance the part’s functionality and appearance.

This process excels in producing complex geometries, achieving net shapes with tight tolerances, and creating components with superior density and mechanical properties.

MIM Secondary Operations

The Benefits of Metal Injection Molding

MIM transforms intricate designs into reality while offering numerous production benefits:

High-Volume Production

An ideal process for manufacturing large quantities of components efficiently.

Material Waste Reduction

Metal injection molding is a Green process with the molding artifacts recycled back into the product.

Complex Geometries

Designs featuring undercuts, threads, fine details, and intricate curves are achievable without compromising part integrity.

Superior Mechanical Properties

MIM parts rival wrought metals, boasting strength, hardness, and excellent thermal and mechanical properties.

Customization and Design Freedom

This method gives engineers more freedom to design creative solutions, without the usual limits of traditional manufacturing.

APP’s MIM process is particularly well-suited for demanding applications in industries such as medical devices, aerospace, automotive, military, and more, thanks to its precision and repeatability standards.

Attributes of MIM Components

The MIM process excels in creating components characterized by their intricate designs, uniform properties, and dimensional accuracy. These parts boast attributes traditionally associated with wrought metals. They offer high strength and hardness, along with excellent thermal properties.

This process is particularly beneficial for producing small to medium-sized parts that require tight tolerances, complex geometries, and superior finishes without additional machining or post-processing. It demonstrates the MIM process's ability to seamlessly integrate form and function.

At APP, our process is designed to produce high-density, net-shaped components that meet stringent quality standards. Parts manufactured through MIM exhibit exceptional mechanical properties and can achieve precise tolerances.

Typical attributes of MIM-produced components include:

  • Mass: Ranging from 0.030 grams to 300 grams.
  • Dimensions: Capable of producing parts with dimensions from 2.0 mm to 150 mm.
  • Wall Thickness: Achievable wall thicknesses as small as 0.025 mm.
  • Density: Parts can achieve densities of up to 100% of theoretical density.

This versatility makes MIM suitable for a wide range of applications across various industries.

Attribute Minimum Typical Maximum
Component Mass (g) 0.030 10-15 300
Dimension (mm) 2.0 (0.08 in) 25 (1 in) 150 (6 in)
Wall Thickness (mm) 0.025 (0.001 in)* 5 (0.2 in) 15 (0.6 in)
Tolerance (%) 0.2% 0.5% 1%
Density 93% 98% 100%
Production Quantity 1000 100,000 100,000,000
MIM Materials

Materials Used in MIM

APP’s MIM process supports a variety of metals and alloys to best suit your application requirements:

  • Stainless Steel: Ideal for corrosion-resistant, durable parts.
  • Tool Steel: Known for its toughness and wear-resistance.
  • Tungsten Alloys: Suitable for high-density applications.

These material choices allow APP to produce high-performing components for industries with strict demands, such as aerospace and medical applications of Metal Injection Molding.

View All MIM Materials

Metal Injection Molding Applications & Industries

MIM’s versatility and precision make it an excellent choice for a wide range of industries, including:

Medical Devices

Crafting precise, intricate components for surgical instruments and implants.

Aerospace

Manufacturing high-performance parts for aircraft and spacecraft.

Military and Defense

Fabricating rugged and reliable parts that stand up to harsh conditions.

Industrial Equipment

Creating machinery components that demand precision and durability.

Sporting Goods

Designing lightweight components like golf club heads and other performance equipment.

Various MIM Parts
Advanced Powder Products

Why Choose APP?

At APP, we pair custom metallurgy with advanced MIM technology to meet demanding production requirements while saving you time and money. Our process consistently delivers the high-density, net-shaped components your application demands.

If you're looking for design flexibility, cost savings, and manufacturing excellence, APP's MIM process promises transformative results.

Unlock New Design Possibilities: Simplify the production of complex parts that challenge traditional methods.

Collaborate with Experts: Our engineers and specialists are ready to guide your project from conception to production.

Start Your MIM Journey Today

Whether you’re exploring MIM for the first time or refining an existing concept, Advanced Powder Products is here to partner with you every step of the way.

Contact us today to request a quote and discover how Metal Injection Molding can elevate your manufacturing process with unmatched precision, quality, and cost-effectiveness.

Request A Quote