What is Metal Injection Molding?

Is your manufacturing process holding back your product’s potential? In this episode of Small Business Talks, we dive deep into Metal Injection Molding (MIM)—a "quietly transforming" technology that bridges the gap between plastic injection molding and high-strength metal production.

Our guest, Nick Eidam, of Advanced Powder Products, explains how this 40-year-old matured technology is now the go-to for small, complex parts that are "really tough to manufacture any other way". If you are currently relying on expensive CNC machining or traditional investment casting, this episode explores a high-ROI alternative that could slash your costs by up to 75%.

Guest: Nick Eidam, Director of Business Development at Advanced Powder Products 
Website: https://advancedpowderproducts.com/ | Phone: (814) 342-5898

Key Takeaways for Manufacturers

What is MIM? A process combining fine metal powders (typically <22 micron) with wax and polymer binders to create a "feedstock" injected into a mold.

 

The "Magic" of Sintering: Parts are molded 20% larger than their final size; during sintering at over 1,200°C, binders melt away and the part densifies to its final geometry.

 

Ideal Geometry: MIM is optimized for small, complex parts—ranging from "a couple dozen on a fingernail" to those that fit comfortably in the palm of your hand.

 

Material Versatility: Common alloys include stainless steels (17-4, 316), carbon steels (4140, 4340), and even exotic materials like titanium and copper.