粉末冶金の過去・現在・未来 The Past, Present and Future of Powder Metallurgy
This paper discribes a brief historical review of powder metallurgy and personal forecast in the near future. Modern powder metallurgy was born for produing incandescent lamp filaments from tungusten powder which could not be melted because of the high melting point. At an early stage of development, powder metallurgy was introduced when fusion metallurgy was impossible to manufacture. Next, the technology of mass production was developed for producing near net shape parts. Before and after the Second World War, powder metallurgy progressed markedly. As the fundamental approach, the sintering mechanism was clarified. Finally, advanced powder metallurgical materials have been developed with the growth of associated technology. In the future, as the technologies of energy saving recycling powder forging from metal scraps and semi-solid forming will be proposed.
粉体および粉末冶金 45(9), 827-832, 1998-09-15
Japan Society of Powder and Powder Metallurgy