Powder metallurgy is suited for medium-to-large, relatively simple structural parts, offering cost advantages, precision within 0.3% ; MIM is better suited for micro-sized parts with complex geometries, precision about 1-3%. The actual choice should be comprehensively evaluated based on part size, complexity, and production volume.
Foldable phone hinges must withstand hundreds of thousands of open-close test cycles. Powder metallurgy combined with subsequent heat treatment effectively improves fatigue strength and wear resistance, making it one of the mainstream processes for foldable-phone hinge structures today.
No. Powder metallurgy can optimize material formulation and structural design to produce lightweight, dimensionally stable metal parts that meet the thin-and-light design requirements of 3C electronics, while maintaining material utilization rates above 98%.