光学精密工程2012，Vol.20Issue(4)：699-705,7.DOI:10.3788/OPE.20122004.0699
多零件选区激光熔化成型效率的优化
Efficiency optimization of selective laser melting for multi-parts
摘要
Abstract
An optimized method was proposed to improve the processing efficiency of Selective Laser Melting (SLM) for multi-parts. First, the time consuming of the SLM process was analyzed and the 2. 5D nesting rules for the optimization were established to reduce the time consuming. Then, the 2. 5D automatic nesting was studied. A simplified method which uses the 3D projection to convert the 2. 5D nesting to the 2D nesting and an algorithm for generating the projection from slice data were presented. Finally,by taking a operation model for an example, an experiment was performed on the virtual SLM system developed with OpenGL and VC++ to simulate the motion of real system and to validate the feasibility of the method. The result shows that the processing times are reduced from 4 to 3, the recoating times are from 3 892 to 2 231 and the expected processing time has been from 91 276 s to 69 918 s at a scanning speed of 600 mm/s, slicing thickness of 0. 035 mm and track space of 0. 08 mm. The time consuming has been significantly reduced as compared with that before optimization.关键词
激光技术/选区激光熔化/多零件/成型效率/2.5维排料Key words
laser technology/Selective Laser Melting(SLM)/multi-parts/processing efficiency/2. 5D nesting分类
矿业与冶金引用本文复制引用
刘杰,杨永强,苏旭彬,肖冬明..多零件选区激光熔化成型效率的优化[J].光学精密工程,2012,20(4):699-705,7.基金项目
2010年广东省教育部产学研结合重点项目(No.2010A090200072) （No.2010A090200072）
华南理工大学优秀博士学位论文创新基金资助项目 （）
