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研究了考虑成本的焊接结构设计与焊接工艺规划方法，开发了基于成本优化的焊接结构ＣＡＤ／ＣＡＰＰ一体化模型及相应的软件ＷＣＥＳ，并以液压挖掘机斗杆焊接件为例进行了原设计方案与优化设计方案的成本比较．
The welding structure design and welding process planning method considering the cost are studied. The integrated CAD / CAPP welding structure CAD model based on cost optimization and the corresponding software WCES are developed. The design of the hydraulic excavator arm welding unit is taken as an example Cost comparison with optimized design.