【摘要】 T型接头的Stake焊接方法是实现金属夹芯板焊接制造的关键技术之一。为了论证焊接制造金属夹芯板的可行性,本文通过实验对比研究了在单一激光、TIG电弧和激光-TIG电弧复合等三种焊接工艺下,钛合金薄板T型接头Stake焊接焊缝成形特点及影响因素。结果表明,激光-TIG电弧焊是实现钛合金薄板T型接头Stake焊接的理想工艺,在焊缝组织、焊接效率、焊缝成形、间隙适应性等方面比单一激光或TIG焊接工艺有明显的优势,可以应用于金属夹芯板的焊接制造。更多还原

【Abstract】 The Stake welding method of T-joints is a critical technology for making metal sandwich panels.In order to demonstrate the feasibility of making metal sandwich panels with welding method,three welding methods,including laser welding,gas tungsten arc(TIG) welding,and laser-TIG hybrid welding with cold welding wire,were investigated experimentally on Stake welding method of titanium alloy thin sheet T-joints.The weld forming properties of the T-joints and some affecting factors were analyzed under this three welding methods.The results show that the laser-TIG hybrid welding with cold welding wire method is an ideal technical for the Stake welding method of T-joints for making metal sandwich panels,which has more advantages than the laser welding method and the gas tungsten arc(TIG) welding method in the microstructure of welded joint,efficiency of welding,weld shaping and adaptability of weld gap.更多还原