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has been cited by the following article:

• TITLE: Analysis of Laser Micro Welding of Copper-Aluminum Dissimilar Metals and Its Mechanism

  AUTHORS: Jiang Huang, Wenqing Shi, Yuping Xie, Zhigang Liang, Jinming Zhan

  KEYWORDS: Mciro Welding, Laser Welding, Copper-Aluminum, Dissimilar Metals, Mechanism

  JOURNAL NAME: Journal of Applied Mathematics and Physics, Vol.7 No.12, December 24, 2019

  ABSTRACT: Micro welding of dissimilar metals can meet many performance requirements for modern engineering structures. In this experiment, laser micro welding of copper-aluminum dissimilar metals was conducted with an HWLW-300A energy negative feedback Nd:YAG pulse laser. By using the overlap welding method with copper on aluminum, with the laser energy being distributed unevenly, good weld joints were obtained. In this paper, the welding mechanism was analyzed from aspects such as welding temperature and the specific heat capacity of the solid metal. Existing defects were identified, and a feasible improvement scheme was proposed.