摘要
激光选区烧结成形(SLS)技术是自下而上通过添加材料来成形的加成技术,它是不同于传统的自上而下的材料去除方式的机械加工方法。然而目前还没有一种将材料去除与加成相结合的激光加工成形技术。在研究激光与粉末材料相互作用时观察到粉末材料被气化的同时,激光光束周围的粉末被烧结的现象,利用这一现象探讨了激光气化烧结成形(LVS)的新方法,它既利用激光将粉末材料气化去除,同时又利用激光将粉末烧结加成在一起,形成所需的形状。该技术在制备、成形微型薄壁件时有独特的优势,薄壁的厚度由数个粉末颗粒组成,有望在激光烧结粉末微成形领域得到广泛应用。
Material processing is based on the philosophy of either removing material or adding material. Traditional machining technologies gradually remove material from top to down. Selective laser sintering （SLS） composes the powder material ＂bottom up layer by layer. A novel method to sinter powder by the investigation of laser interaction with powder is developed. This fabrication technology combines material removing and adding together named laser vaporizing sintering （LVS） technology. This technology removes the material with laser vaporizing and meanwhile the powder around laser beam is molten and sintered to form structure by laser. It shows great potential advantages to fabricate thin or micro parts in the future.
出处
《中国激光》
EI
CAS
CSCD
北大核心
2008年第11期1713-1717,共5页
Chinese Journal of Lasers
基金
国家自然科学基金(50575005)资助项目
关键词
激光技术
成型
去除
气化
烧结
laser technique
additive
abrication
material removing
vaporizing
sintering
