摘要
利用Gleeble-1500热/力模拟试验机,研究了LF6铝合金的扩散焊工艺。通过对焊接温度、压力、时间的调整和选用不同的焊前处理方法,确定了最佳的扩散焊工艺规范。研究结果表明:在一定的温度和时间范围内,LF6铅合金扩散焊接头的剪切强度随焊接温度和时间的增加而提高;化学浸蚀法比机械打磨法能更有效的去除铝合金表面的氧化膜;在现有试验条件下,得到LF6铝合金扩散焊的最佳规范参数,搭接试样扩散焊接头的剪切强度可达147.2Mpa。
The diffusion bonding techniques of LF6 aluminim alloy were studied by means of Gleeble-1500 thermal and mechanical material testing machine. The optimum diffusion bending technique was found by controlling the welding temperature, presure and time and also by chosing different interlayer foils. Experimental results show that the shear strength of the welding joint of LF6 alloy is increased with the increase of the welding temperature and time. It is alos found that the oxide film on the surface of aluminium alloy can be effectively removed by chemical corroding method as compared with that by mechanical grinding. Under the optimum welding parameters obtained in this research, the shear strength of the welding joint of the LF6alloy reached 147.2MPa.
出处
《材料科学与工艺》
EI
CAS
CSCD
北大核心
1995年第4期108-111,共4页
Materials Science and Technology
基金
黑龙江省自然科学基金
关键词
扩散焊
表面处理
铝合金
diffusion welding
surface treatment, LF6 aluminium alloy