...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >Molten pool characterization of laser lap welded copper and aluminum
【24h】

Molten pool characterization of laser lap welded copper and aluminum

机译：激光搭接焊接铜和铝的熔池特性

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A 3D finite volume simulation model for laser welding of a Cu-Al lap joint was developed using ANSYS FLUENT to predict the weld pool temperature distribution, velocity field, geometry, alloying element distribution and transition layer thickness - all key attributes and performance characteristics for a laser-welded joint. Melting and solidification of the weld pool was simulated with an enthalpy-porosity formulation. Laser welding experiments and metallographic examination by SEM and EDX were performed to investigate the weld pool features and validate the simulated results. A bowl-shaped temperature field and molten pool, and a unique maximum fusion zone width were observed near the Cu-Al interface. Both the numerical simulation and experimental results indicate an arch-shaped intermediate layer of Cu and Al, and a gradual transition of Cu concentration from the aluminum plate to the copper plate with high composition gradient. For the conditions used, welding with Cu on top was found to result in a better weld joint.
机译：使用ANSYS FLUENT开发了用于激光焊接Cu-Al搭接接头的3D有限体积模拟模型，以预测焊缝温度分布，速度场，几何形状，合金元素分布和过渡层厚度-合金的所有关键属性和性能特征激光焊接接头。用焓-孔隙度公式模拟了熔池的熔化和凝固。进行了激光焊接实验以及通过SEM和EDX进行的金相检查，以研究焊缝特征并验证模拟结果。在铜铝界面附近观察到碗形的温度场和熔池，以及独特的最大熔合区宽度。数值模拟和实验结果均表明，Cu和Al呈拱形中间层，并且Cu浓度从铝板向铜板的过渡具有较高的组成梯度。在所使用的条件下，发现在顶部焊接Cu可获得更好的焊接接头。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号