Analysis of pendulum welding process parameters based on response surface method
In response to the challenge of numerous welding parameters in the swing welding process,and the difficulty on determining the relationship between geometric parameters of the weld joint and welding parameters,an analysis method of swing welding process parameters based on the response surface method is proposed.Firstly,the welding torch's swing trajectory and swing parameters in the CMT swing welding process are studied.Then,a mathematical model is establised using the response surface method to corelate the wire feeding speed,welding speed,swing amplitude,weld height,weld width,and weld penetration.Moreover,the effectiveness of the model is validated through experimental verification.The research shows that when the welding torch swings with a swing length of 3 mm and stay on the sidewalls on both sides for a length of 0.5 mm,the weld joint does not show"fishbone"type undercutting and has good formation with a desirable"fish scale"pattern,which meets the welding forming requirements.The main influencing factors of weld height are wire feeding speed＞welding speed＞swing amplitude.The main influencing factors of weld width are identified as swing amplitude＞welding speed＞wire feeding speed,and the main influencing factors of weld penetration are determined to be wire feeding speed＞welding speed＞swing amplitude.All three models can predict responses within the factor domain.
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维普
