Metal injection mold

Metal injection molding (MIM) is a metalworking process where finely-powdered metal is mixed with a measured amount of binder material to comprise a 'feedstock' capable of being handled by plastic processing equipment through a process known as injection moldforming.

The molding process allows complex parts to be shaped in a single operation and in high volume. End products are commonly component items used in various industries and applicaations. The nature of MIM feedstock flow is defined by a physics calledrheology. Current equipment capability requires processing to stay limited to products that can be molded using typical volumes of 100 grams or less per "shot" into the mold. Rheology does allow this "shot" to be distributed into multiple cavities, thus becoming cost-effective for small, intricate, high-volume products which would otherwise be quite expensive to produce by alternate or classic methods. The variety of metals capable of implementation within MIM feedstock are referred to as powder metallurgy, and these contain the same alloying constituents found in industry standards for common and exotic metal applications. Subsequent conditioning operations are performed on the molded shape, where the binder material is removed and the metal particles are coalesced into the desired state for the metal alloy.

 

Application
-Aerospace
-Automobile
-Electronics
-Military
-Medical
newsletter h-metal 201307

 

Material

Category

Material

Feature

Application

Stainless steel

SUS 304L

Corrosion resistant

Key

SUS 316L

Clock

SUS 440C

Corrosion resistant

High hardness

Slide

SUS 630

Corrosion resistant

High strength

Shaft

Medical

Tool steel

SKD 11

High strength

Wear resistant part

Carbon steel

Fe-Ni

High strength

Low alloy

3C parts

Structural parts

Others

Kovar

Low heat coefficient

Telecom parts