Metal Powder Injection Molding (MIM) is a cost-effective and efficient manufacturing process. It involves mixing metal powders with a binder, shaping them using an injection molding machine, and then debinding, sintering, and post-processing the components to create high-quality metal parts. MIM offers improved production efficiency and reduced costs.
Parameters | Investment casting | MIM |
Minimum aperture diameter | 2mm | 0.4mm |
Maximum depth of aperture¢ 2mm | 2mm | 20mm |
Minimum wall thickness | 2mm | <1mm |
Maximum wall thickness | unlimited | 10mm |
¢ 4mm tolerance | ±0.2mm | ±0.06mm |
Surface finish(Ra) | 5μm | 1μm |
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
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 |
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 |
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 |
MIM material | Density 103kg/m3 | Hardness | Tensile strength | Curve stength | Elongation% | |
Iron-based alloy | MIM4600 | 7.68 | 85HRB | 400 | 25 | |
MIM4650 | 7.68 | 100HRB | 600 | 15 | ||
Stainless steel | 316L | 7.94 | 52HRB | 580 | 45 | |
Tungsten alloy | 95%W | 18.1 | HRC31 | 930 | 10 | |
97%W | 18.5 | HRC33 | 890 | 6 | ||
Carbide alloy | YG8X | 14.9 | HRA90 | 2300 |
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, MIM is fast becoming an integral process in metal forming.
PARAMETERS | MIM | POWDER | CASTING | MACHINING | STAMPING |
Density | 98% | 86% | 98% | 100% | 100% |
Tenside Strength | High | Low | High | High | High |
Surface Finish | High | Medium | Medium | High | High |
Miniaturization | High | Medium | Low | Medium | High |
Thin Wall Capability | High | Medium | Medium | Low | High |
Complexity | High | Low | Medium | High | Low |
Design Flexibility | High | Medium | Medium | Medium | Low |
Production Quantity | High | High | Medium | Med-High | High |
Range of Materials | High | High | Med-High | High | Medium |
Affordability | High | High | Medium | Low | High |