Effects of Process Parameters on Weld Geometry in Electron Beam Welding Based on Partial Correlation Analysis
Accelerating voltage, electron beam current, welding speed constitutes the main electron beam welding process parameters, while the penetration depth and depth-width ratio are two of the most important characteristic parameters of the weld geometry. However complex interactions exists between the five variables, so the analysis of a single process parameter on one of the weld geometry is affected by other process parameters, and this impact of these interference parameters should be excluded to find the real relationship between the variables where partial correlation analysis provides such a method. Effects of the accelerating voltage, electron beam current, welding speed of electron beam welding process parameters on weld geometry is analyzed by using partial correlation analysis. The priority order of adjustment of process parameters is obtained, namely: in order to obtain a larger depth-width ratio, to increase the beam current and accelerating voltage should be taken firstly, and then raise the welding speed; in order to obtain greater penetration depth, to increase the beam current is preferred, followed by increasing the accelerating voltage, and reducing the welding speed finally.
electron beam welding process parameters depth-width ratio partial correlation analysis
X.F.Shen W.R.Huang Y.Z.Zhang
Institute of Machinery Manufacturing Technology, China Academy of Engineering Physics,Mianyang, P.R.China
国际会议
北京
英文
29-33
2010-10-25（万方平台首次上网日期，不代表论文的发表时间）