抄録
The history of metal powder raw materials in the powder metallurgy is powder about average particle size 70 µm represented by − 100 Mesh. A metal powder mass productions technology less than average particle size 10 µm progressed in the past 3 decades. By the progress of this fine metal powder production technology, the new PM technology and use that conventional − 100 Mesh powder did not have were able to open. I survey the present conditions and the future in the field of powder metallurgy of this new Fine powder here.
