选择性激光烧结后处理工艺技术研究现状  

The Research Status of Post-processing Technology of Selective Laser Sintering

作　　者：王伟[1] 王璞璇 郭艳玲[1] 

机构地区：[1]东北林业大学机电工程学院,哈尔滨150040

出　　处：《森林工程》2014年第2期101-104,191,共5页Forest Engineering

基　　金：国家自然科学基金项目(51075067)

摘　　要：针对选择性激光烧结(SLS)在无压以及无支撑条件下对材料进行激光加热烧结获得成型件的致密性较低、强度较差的问题,采用后处理工艺可以提高成型件的各项性能。根据不同原材料烧结机理的不同,介绍SLS原材料及其成型方法,分别论述金属粉末、高分子粉末、陶瓷粉末以及复合粉末烧结成型件的后处理工艺研究现状和方法以及成型件经后处理后的性能变化。重点研究SLS新型原材料木塑复合材料和它的后处理工艺,研究表明通过后处理不仅提高制件力学性能和表面质量,其渗蜡件还可以作为精密铸造消失模。Due to the low density and intensity of parts fabricated by Selective Laser Sintering（SLS） in case of no pressure and support, the postprocessing becomes another important processing to improve the ＇properties of prototypes. According to different sin- tering mechanism of different raw materials, the raw materials and their processing methods based on SLS are introduced. Meanwhile, according to the classification of different materials such as metal, polymer, ceramic and other composites, their post-processing tech- niques and the performance changes of partd the after post-processing are discussed, respectively. Finally, the SLS of wood-plastic composites and the corresponding post-treatment are highlighted, which can not only improve the mechanical properties and surface quality, but also make the wax-infiltrating WPC parts to be used in casting as patterns.

关 键 词：选择性激光烧结 后处理工艺 木塑复合材料 金属粉末 高分子粉末 陶瓷粉末 

分 类 号：S784[农业科学—林学]