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压力对纯铜超声焊接界面行为的影响

杨景卫1,曹彪2,柳健2,卢清华1

杨景卫1,曹彪2,柳健2,卢清华1. 压力对纯铜超声焊接界面行为的影响[J]. 焊接学报, 2018, 39(2). DOI: 10.12073/j.hjxb.2018390040
引用本文: 杨景卫1,曹彪2,柳健2,卢清华1. 压力对纯铜超声焊接界面行为的影响[J]. 焊接学报, 2018, 39(2). DOI: 10.12073/j.hjxb.2018390040

压力对纯铜超声焊接界面行为的影响

  • 摘要: 以0.8 mm厚的纯铜为研究对象,进行了超声焊接接头试验分析,研究了焊接压力对焊接过程及接头强度的影响规律. 界面间运动传递力学分析表明,焊接压力通过界面粘—滑运动影响界面的能量输入,进而影响焊接接头的成形过程. 结果表明,焊接压力直接影响压电换能器的功率输出,从而影响输入焊接界面的能量,致使焊接区域的变形程度不同;焊接压力存在临界值,低于临界值时,焊接接头拉伸剪切力随焊接压力增大而增大,但强度较低;高于临界值时,随着焊接压力的增大,焊接接头拉伸剪切力基本保持不变.
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出版历程
  • 收稿日期:  2017-05-06

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