焼結体気孔中に残留する黒鉛による鉄系焼結材料の被削性改善 Improvement in Machinability of Sintered Steel due to Graphite Particles Retained in Pore Sites
The effect of graphite retained in the pore sites of sintered steels on machinability was investigated. Sintered steels containing retained graphite were obtained by sintering green compacts made from sulfur-containing iron powder with copper and graphite. Retained graphite in the pore sites of sintered steels in amounts of 0.1 to 0.3wt% resulted in 10 times longer drilling tool life and no significant impact on tensile strength.
粉体および粉末冶金 43(4), 545-549, 1996-04-15
Japan Society of Powder and Powder Metallurgy