摘要
为了研究铝合金激光诱导MIG电弧增材制造过程中各参数对薄壁结构件成形尺寸的影响规律,利用二次通用旋转组合方法设计正交试验样本,通过二次回归方程建立了工艺参数(电弧电流I、堆积速度v、层间温度T、激光功率P)与成形墙体稳定区域的尺寸预测模型,并研究了单个工艺参数对试件成形的影响,经验证发现模型预测效果较好.结果表明,当电弧电流大于106 A时,参数对层宽的影响顺序由大到小为,电弧电流、层间温度、堆积速度、激光功率;参数对层高的影响顺序由大到小为,电弧电流、堆积速度、层间温度、激光功率.
In order to research the influence of various parameters on the forming dimension of thin-walled structural parts in the process of laser induced MIG arc additive manufacturing of aluminum alloys,this paper used the quadratic general rotation combination method to design orthogonal test samples,and established the process parameters(arc current I,stacking velocity v,interlayer temperature T,laser power P)and the size prediction model of the stable area of the thin-walled wall through quadratic regression equations.And the influences of individual process parameters on the forming of the test piece were studied.It was found that the model prediction effect was good.When the arc current exceeded 106 A,the order of influence of parameters on the layer width from large to small were arc current,interlayer temperature,stacking speed,and laser power.The order of influence of parameters on layer height from large to small were arc current,stacking speed,interlayer temperature,laser power.
作者
张兆栋
曾庆文
刘黎明
孙承帅
ZHANG Zhaodong;ZENG Qingwen;LIU Liming;SUN Chengshuai(Key Laboratory of Advanced Connectivity Technology of Liaoning Province,Dalian University of Technology,Dalian 116024,China)
出处
《焊接学报》
EI
CAS
CSCD
北大核心
2019年第8期7-12,I0001,共7页
Transactions of The China Welding Institution
基金
国家重点研发计划(2018YFB1107900)
大连市高层次人才创新支持计划项目(2017RQ102)
关键词
激光诱导电弧
增材制造
成形尺寸
正交试验
laser induced arc
additive manufacturing
forming size
orthogonal test
