基于焊丝深熔模式的铝/铜激光熔钎焊工艺研究

来源 :中国激光 | 被引量 : 0次 | 上传用户：lingdujimo

【摘要】

：

采用基于焊丝深熔模式的熔钎焊方法,进行了1060铝合金和T2紫铜异种金属的激光填丝焊工艺研究.利用高速摄像机观测焊丝熔化的过渡行为,采用光学显微镜、X射线衍射仪、扫描电镜、显微硬度仪及拉伸试验机对焊缝形貌、接头组织及性能进行表征.结果表明,采用不同的坡口形式和尺寸,使激光束在坡口中的作用位置偏向铜侧,这有利于焊缝成形.熔钎焊接头成形良好,无咬边缺陷.接头拉伸强度可达铝母材的80％,接头断裂发生在界面层,断裂方式为脆性断裂.在焊缝界面层,存在笋状和胞状的铝/铜金属间化合物.XRD检测结果表明,金属间化合物

【作者】

：

姜仁杰程智伟武强肖荣诗

【机构】

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北京工业大学材料与制造学部智能光子制造研究中心,北京100124

【出处】

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中国激光

【发表日期】

：

2021年22期

【关键词】

：

激光技术异种金属深熔模式填丝熔钎焊坡口形式组织性能

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