Energy-storage welding connection characteristics of rapidly solidified Cu-Co alloy foils  

作　　者：徐锦锋 翟秋亚 蒋永 

机构地区：[1]School of Materials Science and Engineering,Xi'an University of Technology

出　　处：《中国有色金属学会会刊：英文版》2004年第4期785-789,共5页Transactions of Nonferrous Metals Society of China

摘　　要：The connection characteristics of rapidly solidified Cu-40%Co alloy foils were studied using a self-developed micro-type energy-storage welding machine. The results show that the microstructure of the alloy foils is characterized by uni form and fine equiaxed grains,whose maximum grain size is 1.8 μm. Under the o ptimum energy,the regular flat nugget is formed,low voltage and high capacitan ce are favorable for obtaining the perfect connection joints,whereas high volta ge and low capacitance are likely to result in the surface burn of the alloy foi ls. With the increase of welding energy,the spot welding joint will be transfor med from regular flat nugget to nugget-free one,and the microstructure tends t o coarsen. The welding parameters recommended are: welding voltage 80100 V,(electric) capacitance 1 8002 500 μF,and welding force 48 N.The connection characteristics of rapidly solidified Cu-40%Co alloy foils were studied using a self-developed micro-type energy-storage welding machine. The results show that the microstructure of the alloy foils is characterized by uni form and fine equiaxed grains,whose maximum grain size is 1.8 μm. Under the o ptimum energy,the regular flat nugget is formed,low voltage and high capacitan ce are favorable for obtaining the perfect connection joints,whereas high volta ge and low capacitance are likely to result in the surface burn of the alloy foi ls. With the increase of welding energy,the spot welding joint will be transfor med from regular flat nugget to nugget-free one,and the microstructure tends t o coarsen. The welding parameters recommended are: welding voltage 80100 V,(electric) capacitance 1 8002 500 μF,and welding force 48 N.

关 键 词：储能焊 铜合金 快速凝固 CU-CO合金 焊接接头 点焊 

分 类 号：TG457.13[金属学及工艺—焊接] TG453.9