METHOD FOR FABRICATING DIMENSIONALLY ACCURATE PIECES BY LASER SINTERING

摘要

The invention relates to a method for the fabrication of dimensionally accurate metal pieces by sintering a pulverous material blend consisting of an iron-group metal, a copper-phosphorous compound and a copper alloy. The piece is produced by layer-by-layer selected area laser sintering. The sintering takes place in an atmosphere containing a gaseous compound of an iron-group metal, whereby said compound decomposes at the sintering temperature and the iron-group metal deposits into said pulverous blend during the sintering.