About Metal Injection Molding
MIM is applicable to various kinds of materials
such as black and ferrous metals (such as stainless
steel and high-speed steel), nickel iron, tungsten
carbide, fined ceramic and magnetic materials, etc.
The technology has been established and widely adopted in
the USA, Japan and European countries for the past
two decades. Featuring extremely high flow rate,
mass volume production of metal parts with intricate
shapes. The flow rate of the MIMis as high as plastic
injection molding, so it can be used to make parts
in all shapes that can be realized by plastic injection
molding. The size and thickness of the MIM parts
are limited, which affect the sintering time and
raise the costs. Even the more complex the part,
it is the better for the MIM process to be performed.The
expensive MIM parts feature high relative density,
so they have no pinholes even after polishing, and
can be electroplated. MIM parts have extremely high
relative density of over 99%, while P/M can only
make 85 to 90%. |
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The higher the relative density, the stronger
the mechanical properties and strength. MIM shows
high performance in the tensile strengths,desirable
hardness and elongations by compare with the other
methods.The MIM process can yield significant
cost savings over the following competing industries
such as : Precision
Machining, CNC Machining, Die-Casting, Precision Casting, Screw
Machining, Traditional P/M, Stamping or Forging, or any other
Sintering Components.The cost savings can also
be realized by eliminating Secondary Operations, Machining,
Sizing or Coining, Oil Impregnation, Tumbling,
or other Surface Treatment.
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