摘要: |
为解决某型号发动机燃烧室机匣安装座焊缝背面裂纹问题,利用工业视频内窥镜、金相检验、扫描电镜等手段对裂纹的形貌、深度、断口组织进行了分析,结合裂纹出现的位置及产品结构确定了裂纹的性质及产生原因。通过采取工艺措施,有效地解决了产品焊接裂纹问题。 |
关键词: 焊接裂纹;结构分析;工艺改进 |
基金项目: |
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Welding Failure Analysis and Process Improvement ofMounting Base in Flame Chamber |
Fan Liliang Yang Zhishun Lin Xiaochao Liu Xiufen
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Beijing Power Machinery Institute, Beijing 100074
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Abstract: |
In order to solve the turbine engine’s welding crack problems appearing on the back of mounting base, video endoscope, metallographic examination, scanning electron microscopy were used to analyze the morphology, depth and fracture of welding crack. Combined with location and product structure, the properties and reasons that caused crack were determined. The crack problems of welding products were effectively solved by adopting technical measures. |
Key words: welding crack;structure analysis;processing improvement |