SPAH370钢制轮辋焊接预成型开裂分析

Hebei Metallurgy(2018)

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Abstract
采用光学显微镜、扫描电子显微镜及能谱仪等设备,对SPAH370钢制轮辋焊接预成型开裂部位进行观察与分析.结果表明,该钢板的化学成分、力学性能都符合标准要求,焊接工艺不当是造成轮辋开裂的原因.建议:优化闪光脉冲焊接,降低焊缝中心在高温处的停留时间,控制合适的顶锻力.
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