PRODUCTION OF METAL ARTICLE BY LASER CYCLIC APPLICATION OF POWDER AND UNIT TO THIS END

摘要

FIELD: process engineering.SUBSTANCE: invention relates to production of metal articles from powder by ply-by-ply selective laser sintering. This method comprises making of shell of the article by application of the ply of first powder and its sintering over the entire working surface. Application of ply of second powder and its selective sintering is repeated unless complete forming of the article. Second powder represents metal or alloy powder. After every sintering of metal or alloy powder, it is fused to make ply in depth of 10-300 mcm. Article formed, plies are subjected to gas-static compaction and, them, to induction remelting with crystallisation of all plies. Now, the shell is removed. Invention covers also the unit for production of metal article by above described process. Plant for production of metal article of powder material.EFFECT: higher strength.10 cl, 2 dwg, 1 ex