现代制造工程Issue(8)：34-36,109,4.DOI:10.16731/j.cnki.1671-3133.2017.08.006
选区激光熔化成型H13钢的致密度与组织研究
Research on density and microstructure of H13 steel formed by selective laser melting
摘要
Abstract
The process validation is carried out by the study on the H13 die steel formed by selective laser melting,the density and microstructure of the samples were analyzed.The result shows that too high and too low linear energy is not benefit to improve the density.The density of the samples formed by selectire laser melting could reach the highest value 94.27％ with laser linear energy of 0.45J/mm,the laser power of 180W and the scanning speed of 400mm/s.Laser power is higher than scanning space on the influence of density during the forming process.The unreasonable combination of process parameters could lead to uneven internal microstructure,micro cracks and pores,these phenomena could reduce the density of the sample.关键词
选区激光熔化/H13模具钢/致密度/显微组织Key words
selective laser melting/H13 die steel/density/microstructure分类
矿业与冶金引用本文复制引用
陈帅,陶凤和,贾长治,杨建春..选区激光熔化成型H13钢的致密度与组织研究[J].现代制造工程,2017,(8):34-36,109,4.
