覆膜砂选择性激光烧结的精度分析与试验研究  

Precision Analysis and Experimental Study on SLS of Resin Coated Sand

作　　者：修辉平[1] 王宏松[1] 徐敏[1] 

机构地区：[1]九江职业技术学院机械工程学院,江西九江332007

出　　处：《热加工工艺》2015年第19期120-122,共3页Hot Working Technology

摘　　要：对覆膜砂选择性激光烧结的精度进行了分析,重点讨论激光功率、铺粉厚度、搭接间距、预热温度和扫描速度对成形件精度的影响;通过L16的正交试验,对试验结果降噪和均值计算,得到各因素对精度影响的权重并得出最优工艺组合,为进一步提高覆膜砂激光烧结件的精度奠定了基础。The accuracy of resin coated sand for selective laser sintering was analyzed, focusing on laser power, powder spreading thickness, scanning distance, preheating temperature and scanning speed which can affect the precision of molded parts. The weights of various factors on the accuracy and the best combination of technology through the denoised and averaged results from L16 orthogonal test was obtained, which can lay the foundation for improving the precision of coated sand laser sintered parts.

关 键 词：覆膜砂 选择性激光烧结 精度 正交试验 

分 类 号：TG242[金属学及工艺—铸造]