Crack in neck of hollow shaft is a very serious malfunction, main cause of the crack include: foundry defect, centralized stress, quality problems of welding and heat treatment.
中空轴轴颈裂纹是水泥磨的严重故障。中空轴轴颈裂纹产生的原因主要有：铸造缺陷，应力集中，焊接和热处理质量问题等。
A fuzzy multicriteria modelling method of defining a structural parameter for representing the grade of welding defect damage is presented.
提出了根据模糊综合评判、定义结构参数用以表示焊接缺陷损伤程度的方法。
This paper introduces the defect causes by the equidistance welding points of fixture tools, safty analysis and treatment for the welding points.
本文介绍了工卡具等焊迹点缺陷形成的原因、安全性分析及焊迹的处理方法。
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