选择性激光烧结快速成型制件翘曲变形的研究  

Study about The Warping Distortion of Selective Laser Sintering Rapid Prototyping Workpiece

作　　者：王维[1] 王兴良[1] 佟明[1] 杨光[2] 钦兰云[1] 

机构地区：[1]沈阳航空工业学院机电工程学院,辽宁沈阳110136 [2]中科院沈阳自动化研究所,辽宁沈阳110016

出　　处：《制造技术与机床》2010年第4期127-129,133,共4页Manufacturing Technology & Machine Tool

摘　　要：针对翘曲变形对选择性激光烧结(SLS)成形精度的影响很大的问题,通过在HRPS-ⅢA型成型机上进行快速成型试验,找出产生翘曲变形的根本原因,得到了激光扫描速度和激光功率、粉末预热温度等工艺参数对翘曲变形的影响规律,并研究了减小翘曲变形的有效措施。Warping distortion of selective laser sintering have a great influence on forming accuracy. Through HRPS -Ⅲ A form machine on rapid prototyping experiment, the root reason of warping distortion is foumd out. Getting technological parameters of the laser scanning rate, laser power and the powder preheated tem perature on the impact law of warping distortion. The paper had made an effective measure of reducing warping distortion.

关 键 词：选择性激光烧结 翘曲变形 预热温度 

分 类 号：TH16[机械工程—机械制造及自动化]