激光功率对CB/PES烧结件成型性能和力学性能的影响  

Effect of Laser Power on Formability and Mechanical Properties of CB/PES Sintered Parts

作　　者：陈晖[1] 赵佳琳 谭博 马江可 高波 CHEN Hui;ZHAO Jialin;TAN Bo;MA Jiangke;GAO Bo(College of Mechanical and Electrical Engineering,Northeast Forestry University,Harbin 150040,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

出　　处：《塑料工业》2022年第7期87-90,共4页China Plastics Industry

基　　金：国家自然科学基金资助项目(52075090);中央高校基本科研业务费专项资金项目(2572015CB09)。

摘　　要：通过选择性激光烧结(SLS)技术制备炭黑/聚醚砜(CB/PES)复合粉末激光烧结件,研究激光功率对CB/PES激光烧结件成型性能和力学性能的影响。研究表明,随着激光功率的增大,CB/PES激光烧结件的拉伸强度与弯曲强度先增大后减小,激光功率为18 W时,CB/PES激光烧结件的拉伸强度和弯曲强度最大。激光功率为9 W时,CB/PES激光烧结件层间分离,随着激光功率的增大,CB/PES激光烧结件颜色逐渐变深且表面逐渐粗糙,激光功率为20 W时,CB/PES激光烧结件次级烧结现象严重且呈“橘皮式”表面。Carbon black/polyethersulfone resin(CB/PES)composite powder laser sintered parts were prepared by selective laser sintering(SLS)technology.The effect of laser power on mechanical properties and formability of CB/PES laser sintered parts were studied.The results show that with the increase of laser power,the tensile strength and bending strength of CB/PES laser sintered parts increase and then decrease.When the laser power is 18 W,the tensile strength and bending strength of CB/PES laser sintered parts reach the maximum.When the laser power is 9 W,the layers of CB/PES laser sintered parts are separated.With the increase of laser power,the color of CB/PES laser sintered parts gradually becomes darker and the surface becomes rougher.When the laser power is 20 W,the secondary sintering phenomenon of CB/PES laser sintered parts is serious and the surface is“orange peel”like.

关 键 词：激光烧结 炭黑/聚醚砜复合材料 激光功率 成型性能 力学性能 

分 类 号：TQ320.66[化学工程—合成树脂塑料工业]