As a kind of near net forming technology for manufacturing high quality precision parts, MIM technology has the advantages of conventional powder metallurgy, machining precision casting.
It can produce small complex metal parts (0.1-500g), like plastic products.
Each part of the parts is homogeneous, with high dimensional accuracy high relative density (> 95%).
It has good surface finish.
The product has stable quality high production efficiency, is easy to realize mass production large-scale production.
MIM technology is suitable for materials.
Iron-based alloy steel, stainless steel, nickel based alloy, tungsten alloy, cemented carbide, titanium alloy, magnetic material, Kovar alloy, fine ceramics, etc.
Applicable materials
Table 1 commonly used materials their application areas:
Material system | Alloy grades components | application area |
low alloy steel | Fe-2Ni, Fe-8Ni | Various structural parts in automobiles, machinery other industries. |
Stainless steel | 316L, 17-4PH, 420, 440C | Medical devices, watch parts |
Cemented carbide | WC-Co | All kinds of tools, watches clocks, watches |
ceramics | Al 2O3, ZrO2, SiO2 | IT electronics, daily necessities, watches clocks |
Heavy alloy | W-Ni-Fe, W-Ni-Cu, W-Cu | Military industry, communications, daily necessities |
titanium alloy | Ti, Ti-6Al-4V | Medical military structural components |
magnetic material | Fe, NdFeB, SmCo5, Fe-Si | Various magnetic components |
Chisel tool steel | CrMo4, M2 | Various tools |
Table 2 performance of several typical materials:
Material Science | density | hardness | tensile strength | elongation |
G/cm 3 | rockwell | MPa | % |
Iron-based alloy | PIM-2200 (sintered) | Seven point six five | 45HRB | Two hundred ninety | Forty |
PIM-2700 (sintered) | Seven point six five | 69HRB | Four hundred forty | Twenty-six |
PIM-4605 (sintered) | Seven point six two | 62HRB | Four hundred fifteen | Fifteen |
PIM-4605 (quenching tempering) | Seven point six two | 48HRC | One thousand six hundred fifty-five | Two |
Stainless steel | PIM - 316L (sintered) | Seven point nine two | 67HB | Five hundred twenty | Fifty |
PIM- 17-4PH (sintered) | Seven point five | 27HRC | Nine hundred | Six |
PIM- 17-4PH (sintered) | Seven point five | 40HRC | One thousand one hundred eighty-five | Six |
PIM - 430L (sintered) | Seven point five | 65HRB | Four hundred fifteen | Twenty-five |
tungsten alloy | 95%W-Ni-Fe | Eighteen point one | Thirty | Nine hundred sixty | Twenty-five |
97%W-Ni-Fe | Eighteen point five | Thirty-three | Nine hundred forty | Fifteen |
Cemented carbide | YG8X | Fourteen point nine | HRA90 | Bending strength 2300 |
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Fine ceramics | Al2O3 | Three point nine eight | HRA92 | Bending strength 530 |
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