抄録
Sintered P/M parts have been widely used in many automobiles, home-electric machines and the other industrial machine applications because of their good productivity for the parts with complicated shape and high precision, and their flexibility for material design with low cost. The production amount have been increased year by year. Especially, in the field of the mechanical parts, it showed a double increase in the past ten years. However, the increase of P/M production in Japan have shown a drop because of the economic situation. In 1993, the recoed showed a minus of the increase. Under such a series condition, many new technology were applied into P/M field, in order to expand the use of sintered parts. Here, we give a review on these topics.
