Metal Injection Molding Electronic Component MIM Micro Part

MIM (Metal Injection Molding) combines the technologies of thermoplastic injection molding and powder metallurgy to produce complex-shaped, high density, high performance metal parts.

1. Best applied to small parts (typically less than 100 grams)

2. Offers lower cost solution

3. Improved mechanical properties

MIM mainly materials

 How MIM Works

The MIM process combines the design flexibility of plastic injection molding with the strength and integrity of wronght metals to offer cost effective solutions for highly complex part geometries.

The MIM process is typically explained as four unique processing steps (compounding, molding, debinding and sintering) to produce a final part that may or may not need final finishing operations

The Advantages of MIM process are as follows:

MIM process advantage 1: Extremely high design freedom Compared with other metal forming methods, MIM can produce more complex-shaped parts, and basically all structures that can be achieved by injection molding can be applied to MIM.

MIM process advantage 2: More material choices MIM can use almost most of the metal materials, considering the economy, the main application materials cover iron-based, nickel-based, copper-based, titanium-based metals or alloys.

MIM process advantage 3: Excellent physical and chemical properties MIM has very excellent physical and chemical properties because its sintering density is very close to the theoretical density, such as mechanical strength, which greatly exceeds the traditional powder metallurgy.

MIM process advantage 4: Exquisite appearance performance MIM sintered blank surface roughness (Ra) can reach 1μm, and more dazzling appearance effects can be obtained through various surface treatment methods.

MIM process advantage 5: Higher dimensional accuracy MIM can generally achieve a tolerance accuracy of ± 0.5%, and higher dimensional accuracy can be obtained in combination with other processing methods.

MIM process advantage 6: Strong and flexible mass production capacity MIM can flexibly adjust and quickly increase production, from hundreds of pieces per day to hundreds of thousands per day, it can respond quickly.

MIM process advantage 7: Environmentally friendly processing concept The material utilization rate is close to 100%, which is a near-net forming technology that can effectively avoid material waste. 

  Comparison between MIM and Traditional Machining

Comparison between MIM and Other Processes