选择性激光烧结成型过程的影响因素  

The Influencing Factors of Selective Laser Sintering Molding Process

作　　者：刘振盈 李磊 杨玮婧 张得栋 LIU Zhen-ying;LI Lei;YANG Wei-jing;ZHANG De-dong(Institute of Coal Chemical Industry Technology,National Energy Group Ningxia Coal Industry Co.,Ltd.,Yinchuan 750411,China)

机构地区：[1]国家能源集团宁夏煤业公司煤炭化学工业技术研究院,宁夏银川750411

出　　处：《塑料工业》2021年第11期20-24,89,共6页China Plastics Industry

摘　　要：选择性激光烧结技术(SLS)是3D打印的一个重要分支。聚合物及其复合材料作为SLS技术常用的原材料之一,其粒径、表面形貌、比表面积、烧结窗口、结晶度等都会对成型过程造成影响。另一方面,打印过程中的设备参数,如激光功率、激光扫描速率、激光扫描间距、层厚和零件床层温度等也是影响制件的重要因素。对聚合物原材料的特性及成型过程的影响因素进行了阐述,为原材料的选择和激光烧结过程中参数的调整提供了依据,并对SLS技术的发展前景进行了展望。Selective laser sintering(SLS)was an important branch of three dimensional(3D)printing.Polymer and its composites were one of the common raw materials in SLS technology.The particle size,surface morphology,specific surface area,sintering window,crystallinity and so on could affect the molding process.And the equipment parameters in the printing process,such as,laser power,laser scanning rate,laser scanning distance,layer thickness and bed temperature,were also important factors affecting the production of parts.The characteristics of polymer raw materials and the influencing factors of the molding process were described,which provided the basis for the selection of raw materials and the adjustment of parameters in the laser sintering process,and the development prospect of SLS technology was also forecasted.

关 键 词：3D打印 选择性激光烧结 聚合物粉末 影响因素 

分 类 号：TB324[一般工业技术—材料科学与工程]