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文章根据W4-60挖掘机桥壳断裂的分析,认定为疲劳断裂。提出了改进焊修工艺和自制辅助工具的方法。
According to the analysis of the W4-60 excavator axle shell fracture, the article was identified as a fatigue fracture. A method to improve the welding repair process and self-made auxiliary tools was proposed.