Unique Advantages of Powder MetallurgyPowder metallurgy is an advanced technology that uses metal powders as raw materials, going through four core processes: powder preparation, forming, sintering, and post-processing to manufacture materials and parts. Compared with traditional casting and forging,
it has significant advantages:
1. Near-net shape: Traditional casting and forging require extensive machining to achieve precise shaping. The near-net shape technology of powder metallurgy allows for the control of part size precision to within ±0.01mm during the forming stage, reducing subsequent machining by more than 80%
.2. Material diversity: Traditional processes are limited in the preparation of special composite materials, whereas powder metallurgy can prepare composites that are difficult to achieve with traditional methods, such as aluminum-based SiC and nanocrystalline soft magnets, by adjusting powder ratios and controlling sintering temperatures.
3. Energy saving and environmental protection: Traditional casting and forging leave machining allowances, achieving only 60%-70% material utilization rates. In contrast, near-net shape powder metallurgy can boost this to over 95%. In terms of energy consumption, traditional casting requires melting metals, and forging requires multiple heating and hammering, while powder metallurgy sintering does not require full melting of metals, reducing energy consumption by 40%-60%.
