摘要
采用CMT焊接工艺进行了电弧增材制造,研究了不同扫描轨迹对薄板焊后变形程度的影响.通过运用空间最小二乘法模型,建立了S值判别法,表征了试板变形程度.通过比较不同扫描轨迹下的S值,获得薄板最小变形程度所对应的轨迹特征,从而总结轨迹特征,得到电弧增材制造过程中截面扫描轨迹规划的原则,并成功地将轨迹设计原则应用到实体零件增材制造的过程中,获得了良好的成形效果及致密实体,为不同截面上扫描轨迹的设计提供了试验基础.
In additive manufacturing process using CMT welding process,research on the influence of specimen deformation in different welding path was made. And by using Dimensional Least-Squared Methods,a quantitative measure method of specimen deformation, called S-Judging law, was modeled.Compared the value of S in different welding path with the summarized characteristic that large deformation accompanied with a bigger value of S,the suitable welding trace planning principle was acquired and had succeeded in acquiring well-formed and dense-organized specimen during the real arc welding additive manufacturing process,which founded an experimental base in deposited layer scanning traces planning.
出处
《焊接学报》
EI
CAS
CSCD
北大核心
2017年第10期21-24,65,共5页
Transactions of The China Welding Institution
基金
国家重点研发计划资助项目(2016YFB0300602)
国家自然科学基金资助项目(51475104,51705103)
关键词
增材制造
冷金属过渡
轨迹规划
additive manufacturing
cold metal transfet
scanning trace Planning
