摘要
采用真空扩散焊焊接铝基复合材料SiCw/6061Al,通过系列试验研究了焊接工艺参数对接头强度的影响。结果表明:该种材料扩散焊时,焊接温度是影响接头强度的主要工艺参数,当焊接温度介于基体铝合金液-固两相温度区间时,接合面上出现了液态基体金属,可获得较高的接头强度。在对此现象进行了深入分析基础上,首次提出非夹层液相扩散焊这一新方法,成功实现了铝基复合材料SiCw/6061Al连接。
Aluminum matrix composite SiC/6061Al was welded by using vaccum diffusion welding. Effect of welding parameters on strength of joint was investigated by a series of experiments. The results show that the strength of joint was mainly influenced by welding temperature, and the strength of joint was highest when welding temperature was between liquidus and solidus of MMC alloy, then liquid matrix metal appeared on the bonding interface. On the basis of further analysis of these phenomenal liquid diffusion welding without interlayer was proposed first. Joint of high quality for SiCw/6061Al aluminium matrix composite can be obtained with appropriate diffusion welding parameters.
出处
《焊接》
1999年第5期12-15,共4页
Welding & Joining
基金
国家自然科学基金项目
59781004
