DIRECT FABRICATING METAL PARTS USING SLS

摘要

Rapid fabricating metal parts is one of the rapid prototyping's development. In this paper the metal parts are fabricated using selective laser sintering in cases of air and room temperature without pre-heating and shield gas. According liquid sintering principle two kinds of metal bronze and tin powders which their molten-points have marked difference are selected to sinter the metal parts. Friction of bronze and tin and sintering parameters that affect largely the distortion of the sintering parts are discovered in test. The optimum component friction and sintering parameters are gotten through sintering test. The distortion of the parts is largely decreased, and the strength of the parts is increased. The metal parts are successfully fabricated.