| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a metal powder, when fed to metal laser sintering, free from cracks in the vicinity of the joint with a fabrication plate, also precipitating no carbon on the fabricated material, and further capable of obtaining the fabricated material having high strength and high hardness. <P>SOLUTION: The powder of tool steel is a powdery mixture composed of: iron based powder; the powder of nickel or/and a nickel based alloy; the powder of copper or/and a copper based alloy; and graphite powder. In the iron based powder, the content of carbon is reduced to 0.2 to 0.6 wt.%. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
