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Abstract:
采用光纤激光器,不添加任何填充材料,对6.0 mm厚5083铝合金和3.5 mm厚低碳钢板材进行激光深熔对接工艺试验,研究激光偏移量对接头焊缝成形的影响.利用光学显微镜、扫描电镜、显微硬度仪、拉伸试验机等研究接头界面的微观组织、显微硬度和抗拉强度.结果表明,激光束偏移量Ad由0.3~0.7 mm变化时,界面金属间化合物从21.0μm逐渐减小到4.1 μm;当激光偏移量为0.7 mm和0.3 mm时,接头界面层的平均硬度分别为765.4 HV和671.3 HV.当激光偏移量为0.6 mm时,接头抗拉强度强度最高,平均抗拉强度为107MPa,达铝母材的60%.
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应用激光
ISSN: 1000-372X
Year: 2015
Issue: 4
Volume: 35
Page: 451-455
Cited Count:
WoS CC Cited Count: 0
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count: 8
Chinese Cited Count:
30 Days PV: 8
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