Why are powder metallurgy parts generally small?
The advantages of powder metallurgy parts can be exploited more in small parts.
Powder metallurgy is not suitable for larger gears, and such gear spokes can not transmit greater power.
Although this part has higher hardness and wear resistance, but as a shaft parts of the fatigue resistance can not be guaranteed, a small defect can lead to damage.
Most of the forming technologies of powder metallurgy products are pressing forming and injection molding, which limits the size and shape of parts.
