某结构搭接接头焊缝裂纹产生原因分析

作者:刘国英;高原;荆慧强 刊名:焊接技术 上传者:吉倩倩

【摘要】分别从断口的宏观形貌、微观形貌、能谱分析、金相分析4个方面对某结构搭接接头焊缝裂纹的产生原因进行分析,观察与分析结果表明,该焊缝裂纹为受外力作用开裂裂纹,产生原因是由于存在大面积的焊接缺陷,而焊接工艺不合理和焊接面清理不干净是造成焊接缺陷的主要因素。

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