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Author:

赵旭东 (赵旭东.) | 肖荣诗 (肖荣诗.) (Scholars:肖荣诗)

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CQVIP PKU CSCD

Abstract:

采用宽带激光光斑和填粉焊接技术,在不使用钎剂的情况下进行6061铝合金/镀锌钢板的熔钎焊接实验。分析测试了接头成形、焊缝组织和接头强度,并探讨了影响接头强度的因素。结果表明,采用此方法可实现6061铝合金/镀锌钢板的熔钎焊连接。选用优化的焊接工艺参数获得了成形饱满,无裂纹、气孔等缺陷的焊缝。焊缝熔宽和金属间化合物层厚度随焊接热输入量的增加而增大。熔钎焊缝中金属间化合物由Al-Fe和Al-Fe-Si系统化合物组成。拉伸试样均断裂在钎料/镀锌钢界面,接头最大机械抗力为152.5N/mm,断口呈脆性断裂特征,钎料/镀锌钢界面为接头的薄弱环节。拉伸试样铝一侧断裂面由Al5Fe2Zn0.4和α-Al组成...

Keyword:

光纤激光 激光技术 熔钎焊接 填充粉末 镀锌钢 铝合金

Author Community:

  • [ 1 ] 北京工业大学激光工程研究院

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Source :

中国激光

Year: 2012

Issue: 04

Volume: 39

Page: 80-84

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 10

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