基于GMAW焊接快速制造的控形研究新进展  

New development of shape control in rapid manufacturing based on welding procedure

作　　者：曹勇[1] 文代云 朱胜[2] 石海滨[2] 王望龙[2] 

机构地区：[1]66345部队 [2]装甲兵工程学院

出　　处：《焊接》2010年第8期11-17,共7页Welding & Joining

基　　金：国家自然科学基金项目(50975286);军队科研项目;国防科技重点实验室基金项目;中国机械工程学会焊接学会创新思路项目资助

摘　　要：GMAW焊接快速制造是低成本金属零件层制造的重要研究方向,成形精度是评判零件成形质量的重要指标。阐述了单道焊缝截面形态控制中焊接工艺、数学建模、数值模拟以及截面形态表征体系等方面的国内外研究现状,总结了单层多道成形堆积路径规划理论与方法的新进展,回顾了多层多道堆积策略及极限堆积的新实践,并对控形研究中的存在问题进行了分析,最后对未来焊接控形研究内容和发展方向提出了建议。Rapid manufacturing by gas metal arc welding (GMAW) process is a main method in low-cost metal parts manufacturing. The forming accuracy is a crucial data to qualitatively evaluate the formed quality of metal parts. In this paper, the present state of single - passed weld profile control was introduced based on welding procedure, mathematical modeling, numerical simulation, and characteristic architecture of cross section in GMAW, the latest development of deposited path planning was presented, new practices of multi - layers deposited strategy and limit was reviewed with, the primary problems in shape control were analyzed, and some advances were put forward on shape control of rapid prototyping by gas metal arc welding (GMAW) processing in future.

关 键 词：快速制造 快速成形 焊接 控形 

分 类 号：TG444.73[金属学及工艺—焊接]