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Powder injection shape technical characteristics
PIM as a manufacturing quality precision components near net shape technology, and the processing methods compared with conventional superiority. PIM can create many of the complex shape of the parts : such as external cutting shafts, the thread, taper, surface, cross-boundary Kong, blind Kong, Taiwan and four key sales, strengthen tendons boards, and so on the surface roll-with the above characteristics are not parts with conventional powder metallurgy methods. Since the adoption of PIM almost no longer manufactured parts for machines processing, reduce material consumption, resulting in the production of complex shape parts for more than a certain number of values, PIM will be more economical than aircraft processing methods. |
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| Comparision of PIM to investment casting |
Parameters |
>Investment casting |
MIM |
Minimum aperture diameter |
2mm |
0.4mm |
Maximum depth of aperture¡é 2mm |
2mm |
20mm |
Minimum wall thickness |
2mm |
<1mm |
Maximum wall thickness |
unlimited |
10mm |
¡é 4mm tolerance |
¡À0.2mm |
¡À0.06mm |
Surface finish(Ra) |
5¦Ìm |
1¦Ìm |
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Powder injection shape advantages : |
Like the production of plastic products, a true production complex shape metal, ceramic, and other parts components products of low-cost, good smoothness and high accuracy (+0.3%~+0.1%), the general follow-up processing products without strength, hardness, extension rate Mechanics high-performance, good resistance to abrasion and fatigue resistance, the organization distributed high utilization of raw materials, production of a high degree of automation, processes simple, clean continuous mass production, the production process for clean production processes |
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PIM Material
Material |
Composition |
Low alloy steel |
Fe-2Ni, Fe-8Ni |
Stainless steel |
316L, 17-4-PH |
Tool steel |
42CrMo4, M2 |
Carbide |
WC-Co£¨6%£© |
Ceramics |
Al203, ZrO2, SiO2 |
Tungsten alloy |
W-Ni-Fe, W-Ni-Cu, W-Cu |
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Powder injection shape
Newer material system PIM applications |
Applications |
Materials |
Request |
Structural pieces |
High-intensity steel |
Intensity "2Gpa |
Medical / dental |
TL Tl-6Al-4V |
Biological compatibility |
Magnetic material |
Fe, Fe14Nd2b, SmCo5 |
Magnetic |
Audio devices |
PZT ceramlcs |
Frequency response |
Wear-resisting pieces |
ZrO2. WC-Co |
Hardness, resilience |
High temperature structures pieces |
Ni3Al NiAl TiAl |
- Oxide |
Processing machines |
Al203.SiC,Al203-ZrO2 |
Intensity |
Withstand high temperatures Sports |
W.Mo,MOSi2 |
Heat |
Aviation flights were |
Super alloys |
Fatigue period |
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PIM system commonly used materials |
Aerospace industry |
rocket nozzle |
Automobile |
Turbo system, Valve braking stystem |
Electronics |
disk driver , cable connector, printer caps, , computer , electric package |
Army force |
land mine rotor , gun trigger |
Medical instrument |
surgical scissor, knife, forceps , biopsy tools |
Home products |
watch , golf |
Hardware machinery |
Hand tools , gears, ratchets, knobs , cutting tools |
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Basic Mechanical Properties of MIM materials
MIM material |
Density 103kg/m3 |
Hardness |
Tensile strength |
Curve stength |
Elongation% |
Iron-based alloy |
PIM4600 |
7.68 |
85HRB |
400 |
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25 |
PIM4650 |
7.68 |
100HRB |
600 |
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15 |
Stainless steel |
316L |
7.94 |
52HRB |
580 |
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45 |
Tungsten alloy |
95%W |
18.1 |
HRC31 |
930 |
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10 |
97%W |
18.5 |
HRC33 |
890 |
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6 |
Carbide alloy |
YG8X |
14.9 |
HRA90 |
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2300 |
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Powder injection technology developed technology compared with other emerging technologie
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| The quest for industrialization and automation has seen the development of various manufacturing technologies. While traditional methods like machining, stamping, forging, casting and powder metallurgy remain important, PIM is fast becoming an integral process in metal forming. |
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