powder metallurgy parts sintered metals parts
The Advantage of Powder Metallurgy Process
①Cost effective
The final products can be compacted with powder metallurgy method ,and no need or can shorten the processing of machine .It can save material greatly and reduce the production cost .
②Complex shapes
Powder metallurgy allows to obtain complex shapes directly from the compacting tooling ,without any machining operation ,like teeth ,splines ,profiles ,frontal geometries etc.
③High precision
Achievable tolerances in the perpendicular direction of compacting are typically IT 8-9 as sintered,improvable up to IT 5-7 after sizing .Additional machining operations can improve the precision .
④Self-lubrication
The interconnected porosity of the material can be filled with oils ,obtaining then a self-lubricating bearing :the oil provides constant lubrication between bearing and shaft ,and the system does not need any additional external lubricant .
⑤Green technology
The manufacturing process of sintered components is certified as ecological ,because the material waste is very low ,the product is recyclable ,and the energy efficiency is good because the material is not molten.
Forming ability comparison of MIM and precision casting:
| Feature | Precision casting | MIM |
| Min hole diameter | 2mm | 0.4mm |
| Max depth for 2mm blind hole | 2mm | 20mm |
| Min wall thickness | 2mm | 0.3mm |
| Max wall thickness | No limit | 10mm |
| Tolerance for 4mm diameter | ±0.2mm | ±0.04 |
| Surface roughness(Ra) | 5μm | 1μm |
Comprehensive comparison of MIM and other processes:
| Process Content | MIM | PM | Precision casting | CNC machining |
| Density | 90% | 86% | 98% | 100% |
| Tensile strength | high | Low | High | High |
| Finish | high | middle | Middle | high |
| Miniaturization capability | high | middle | Low | Middle |
| Thin all capability | high | middle | middle | Low |
| Complexity | high | Low | middle | High |
| Tolerance of design | high | Middle | middle | Middle |
| Material range | high | high | middle | high |
MIM Industrial Product Solutions
Door hardware – Lock housings, cylinders, carriers, pins
Hand and power tools – Handles, bits, keyless chucks, blade clamps, pawls, ratchet mechanisms
Electronics – Sensor housings, fiber optic connectors, microwave packages, heatsinks
Hydraulics – Valve spools, housings, lavatory fixtures
Fasteners and Hardware – Aerospace
Plumbing – Valve spools, faucet hardware
Safety – Fall protection mechanisms
Oil & Gas – Valve components for high corrosion applications
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90 Hardness Powder Metallurgy Parts Sintered Metal Parts Images
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