Blog

What is Metal Injection Molding (MIM)?

Posted on Apr 03, 2020 by Cullen Hikene

Metal injection molding (MIM) is a metalworking process in which finely-powdered metal is mixed with binder material to create a “feedstock” that is then shaped and solidified using injection molding. The molding process allows high volume, complex parts to be shaped in a single step.

3Diligent illustrated processes: metal injection molding

What are the Different Types of Metal Injection Molding?

  1. Metal Injection Molding (MIM)

What are the Advantages of Metal Injection Molding?

  • High-Volume of Parts. Quantities in the 1000s will be cost-effective.
  • Complexity. Complex metal designs are feasible with metal injection molding when compared with, for instance, machining.
  • Strong Material Characteristics. Parts material properties equivalent or superior to cast alloys.

What are the Limitations of Metal Injection Molding?

  • Post-Processing Steps Required. Such as de-binding and sintering.
  • Small Parts. The process is limited to small-sized metal parts.
  • Expensive Tooling. Required for large production runs.

 

Key Metrics

Standard Tolerance
+/- .003″ (.080 mm)

Typical Surface Finish
~ 1.6um

Maximum Quantity
Per tooling quantity exceeds 10,000/year

Minimum Wall Thickness
~0.1″

Conclusion

Metal injection molding (MIM) is an emerging technology in the IM space gaining popularity due to its high-speed creation of metal parts, previously unavailable through standard IM avenues like plastic injection molding (PIM.) Consider submitting an RFQ through manufacturing services such as ProdEX to get started today.

Popular Posts
4 Ways CNC Machining Still Beats 3D Printing

4 Ways CNC Machining Still Beats 3D Printing

There has been a lot of hype in the last few years about 3D printing. This is understandable, given

Powder Bed Fusion vs. Binder Jetting

Powder Bed Fusion vs. Binder Jetting

Untitled Document Powder bed fusion and binder jetting are two of the most common classes of metal 3D printing

Recent Posts
How 3Diligent ProdEX Delivers The Highest Quality Parts and Products

How 3Diligent ProdEX Delivers The Highest Quality Parts and Products

When we set out to build 3Diligent, we made a commitment to always emphasize quality and service first.  As

Extrusion 3D Printing of Virtually Any Material with ProdEX

Extrusion 3D Printing of Virtually Any Material with ProdEX

Certainly one of the most popular and recognizable 3D printing technologies in the world is Material Extrusion.  Endearingly referred