Powder metallurgy (PM) is a technology for producing materials or products by compacting and sintering a metal powder or a powder containing nonmetal powder blended with a metal powder. The obtained products are called sintered parts. The majority of PM products are used as automobile parts. Because sintered parts are produced by hardening a powder material, they contain pores. The density of the part and mechanical properties such as strength vary depending on the volume of these pores. The main raw material used in these sintered parts are iron powders, which are classified as reduced iron powder, atomized iron powder, or electrolytic iron powder. Iron powders are selected and used as required by the properties of the target sintered part.
Applications of sintered parts
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■ Machine parts
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medium density; most general type of sintered parts
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■ Machine Parts/Bearings and Filters
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low-density parts which take advantage of porosity; used in oil-impregnated bearings when lubricating oil can be impregnated in the metal
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■ Magnetic Materials
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materials utilizing magnetic functions such as high permeability, high initial permeability, soft magnetism, etc.
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■ Friction partsc
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materials with high friction/wear performance; used in clutches and brakes
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ENGINE PARTS
Cam shaft pulley
Cam shaft sprocket
Crank shaft pulley
Crank shaft sprocket
Cap crank bearing
Valve guide
Valve seat
Rocker arm chip
Oil pump inner rotor
Oil pump outer rotor
etc.
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STEERING PARTS
Power steering rotor cam ring
Pressure plate
Rack guide
etc.
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SEAT AND DOOR PARTS
Seat lifter cam set
Door mirror plate clutch
Striker
Slider
etc.
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TRANSMISSION PARTS
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Synchronizer hub |
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A/T |
Hub clutch |
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Synchronizer ring |
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Retaining plate |
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Synchronizer key |
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Pressure plate |
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Shift fork |
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Turbine hub |
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Weight governor |
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Cam stater T. C. |
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Outer race |
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etc. |
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SUSPENSION AND BRAKE PARTS
Shock absorber
Ball joint
ABS sensor
etc.
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