选择性激光烧结核桃壳/Co-PES复合粉体颗粒尺度研究  

Study on Particle Scale of Selective Laser Sintering Walnut Shell/Co-PES Composite Powder

作　　者：于跃强[1] 郭艳玲[1] 蒋婷[2] 姜凯译[1] 张慧[1] 郭帅[1] 

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]哈尔滨理工大学机械动力工程学院,黑龙江哈尔滨150080

出　　处：《应用激光》2017年第4期509-514,共6页Applied Laser

基　　金：国家自然科学基金资助项目(项目编号:51475089);"中央高校"创新基金资助项目(项目编号:2572015AB12);博士点专项基金资助项目(项目编号:20130062110006)

摘　　要：以核桃壳粉末颗粒为原料,研究并制备了一种用于选择性激光烧结技术的可持续性、低成本核桃壳/Co-PES复合粉体(WSPC),采用选择性激光烧结技术制备WSPC复合粉体激光成型件,利用扫描电镜(SEM)表征粉体颗粒形貌、成型件断面形貌以及颗粒间结合状况。探讨了核桃壳粉末颗粒与Co-PES粉末颗粒尺度配置对WSPC复合粉体激光成型件密度、力学性能以及表面质量的影响。结果表明,当Co-PES粉末颗粒一定时,WSPC复合粉体激光成型件的表面质量会随着核桃壳粉末颗粒的增大而降低,但密度与力学性能会随着核桃壳粉末颗粒的增大而增加。The walnut shell powder particles were used as raw material.A kind of sustainable and low-cost walnut shell/CoPES composite powder （WSPC） for selective laser sintering was studied and prepared.WSPC laser forming parts were prepared by selective laser sintering technology.The powder particle morphology,forming parts section morphology and particle combination condition were characterized by scanning electron microscopy （SEM）.This paper discussed that the particle scale distribution of walnut shell powder particles and Co-PES power particles affected the density,mechanical properties and surface quality of WSPC laser forming parts.The results showed that when the Co-PES powder particles were constant,the laser surface quality of WSPC laser forming parts would decrease with the increase of the walnut shell powder particles,however,the density and mechanical strength would increase with the increase of walnut shell powder particles.

关 键 词：3D打印 核桃壳粉末 颗粒尺度 微观形貌 力学性能 

分 类 号：TB324[一般工业技术—材料科学与工程]