航空学报 > 1999, Vol. 20 Issue (6): 573-576

金属基复合材料激光诱发反应焊接研究

徐九华, 范炯, 林祥丰   

  1. 南京航空航天大学机电工程学院 江苏南京 210016
  • 收稿日期:1998-09-02 修回日期:1998-11-11 出版日期:1999-12-25 发布日期:1999-12-25

LASER INDUCED REACTION WELDING OF METAL MATRIX COMPOSITES

XU Jiu-hua, FAN Jiong, LIN Xiang-feng   

  1. Mechanical Engineering Institute, Nanjing Univ. of Aero. and Astro., Nanjing 210016, China
  • Received:1998-09-02 Revised:1998-11-11 Online:1999-12-25 Published:1999-12-25

摘要: 将激光焊接技术用于碳化硅颗粒增强铝基复合材料的焊接。激光能量诱发复合材料和反应添加物钛之间的相互作用产物形成了复合材料的焊接接头。在一定的焊接条件下该反应产物能够完全阻止有害碳化铝相在焊接区的形成。给出了金属基复合材料激光诱发反应焊的试验结果,并从理论上对激光诱发反应焊接机理进行了探讨。

关键词: 激光焊, 金属基复合材料, 反应

Abstract: A Laser Induced Reaction Welding(LIRW) technique is employed for SiC particulate reinforced Al based composite to produce joints. Joints in SiC/Al alloy composite are produced by synthesis of suitable material product as a result of the interaction between the composite and Ti reactive filler material induced by laser energy in the joint region. Such reaction product can eliminate the formation of deleterious aluminum carbide phase in the joint region under the suitable condition. Experimental results of LIRW of metal matrix composites (MMCs) are reported. The mechanism of LIRW of MMCs is theoretically analyzed.

Key words: laser w elding, metalmat rix compo site, react ion

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