抄録
Automotive parts produced by powder metallurgy (P/M) process are commonly used in automobiles because they can be produced without the use of machining and with special alloy design. This paper describes how the P/M process can be applied to the production of environmentally friendly automotive parts. The paper begins with a discussion on how the utilization of P/M for net-shape manufacturing makes it possible to conserve both energy and materials due to the fact that machining is unnecessary. Evidence is then presented that it is possible to produce warm-compacted automotive P/M parts with sufficient strength even without the use of special alloy elements and/or heat treatments. Finally, magnet materials made by spark-plasma-sintering are described. This spark-plasma-sintering process makes it possible to create high-performance magnet parts with highly energy efficient.
