激光功率对玻璃微珠/聚醚砜树脂激光烧结件成型性能的影响  

Effect of Laser Power on Formability of GB/PES Laser Sintered Parts

作　　者：陈晖[1] 王永吉 凌人蛟[2] 刘晨 郭振 郭艳玲[1] CHEN Hui;WANG Yong-ji;LING Ren-jiao;LIU Chen;GUO Zhen;GUO Yan-ling(Northeast Forestry University,College of Mechanical and Electrical Engineering,Harbin 150040,China;Harbin Vocational ＆ Technical College,College of Mechanical and Electrical Engineering,Harbin 150081,China)

机构地区：[1]东北林业大学机电工程学院,黑龙江哈尔滨150040 [2]哈尔滨职业技术学院机电工程学院,黑龙江哈尔滨150081

出　　处：《塑料工业》2018年第7期43-45,60,共4页China Plastics Industry

基　　金：黑龙江省博士后基金(LBH-Z14011);中央高校基本科研业务费专项资金项目(2572015CB09)

摘　　要：研究了一种新型低成本、绿色环保、可用于激光烧结的材料——玻璃微珠/聚醚砜树脂复合材料(GB/PES)。以不同激光功率进行激光烧结实验,制得拉伸试样和冲击试样,进行成型性能及成型件缺陷成因分析。实验结果表明,随着激光功率的增大,GB/PES复合材料的烧结成型件X、Y、Z三个方向的测量尺寸都在增大;激光功率对烧结成型件X、Y方向尺寸精度影响较小,对烧结成型件Z方向尺寸精度影响较大;而激光功率过大会造成GB/PES烧结成型件断层及难清粉现象。A new type of low-cost, green and environmentally friendly material-glass bead/polyether sulfone resin composites （GB/PES） used for laser sintering was studied. The tensile and impact test specimens were prepared by laser sintering experiments with different laser powers, and the building-up properties and reasons of defects of formed parts were investigated. The experimental results show that with the increase of laser power, the dimensions of X, Y, Z-directions of the sintered parts of GB/PES composites increase. The influence of laser power on the dimensional accuracy of sintered parts in X and Y-direction is small, and the influence on the dimensional accuracy of sintered parts in the Z-direction is larger than X and Y-direction. If the laser power is too large, faults of interlaminar fracture and difficult-to-clear parts of GB/ PES sintered Darts would be occur.

关 键 词：激光烧结 激光功率 玻璃微珠/聚醚砜复合材料 尺寸精度 烧结缺陷 

分 类 号：TB332[一般工业技术—材料科学与工程]