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|
Gear Parts 1 |
Gear Parts 2 |
|
|
Self-Lubrication Bushing 1 |
Self-Lubrication Bushing 2 |
|
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Pulley |
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To offer more material options, Yeh Der invested Aurora Powder Metallurgy Co., Ltd. in 2003 to manufacture powder metallurgy gears and parts. The strength of the powder metallurgy gears is much greater than plastic gears and the unit price is much lower than machining steel gears.
Advantages of the Powder Metallurgy
- Cost-effective.
- Permits a wide variety of alloy products, components including iron powder, nickel powder, stainless steel powder, aluminum powder, copper powder, tin powder, zinc powder, etc.
- Eliminates or minimizes machining by producing parts at, or close to, final dimensions.
- Provides controlled porosity for self-lubrication or filtration.
- Able to be heat-treated for increased strength or increased wear resistance.
- Facilitates manufacture of complex or unique shapes that would be impractical or impossible with other metalworking processes.
Metalwork Comparison:
Process |
Tooling Cost |
Unit Cost |
Metal Options |
Design Freedom |
Volume Production |
Powder Metallurgy |
mid |
low |
high |
mid |
high |
Machining |
na |
high |
high |
high |
low |
Injection Molding |
high |
mid |
high |
high |
high |
Stamping |
high |
mid |
mid |
low |
high |
Forging |
high |
mid |
mid |
low |
high |
Sand Casting |
low |
low |
low |
mid |
low-mid |
Investment Casting |
mid |
high |
high |
high |
low-mid |
Die Casting |
high |
low |
low |
high |
high |
| 
