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Effect of Resistance Spot Welding Parameters on AA1100 Aluminum Alloy and SGACD Zinc coated Lap Joint Properties
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 Title & Authors
Effect of Resistance Spot Welding Parameters on AA1100 Aluminum Alloy and SGACD Zinc coated Lap Joint Properties
Chantasri, Sakchai; Poonnayom, Pramote; Kaewwichit, Jesada; Roybang, Waraporn; Kimapong, Kittipong;
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 Abstract
This article is aimed to study the effects of resistance spot welding (RSW) on the lap joint properties between AA1100 aluminum alloy and SGACD zinc coated steel and its properties. The summarized experimental results are as follows. The summarized experimental results are as follows. The optimum welding parameters that produced maximum tensile shear strength of 2200 N was a welding current of 95 kA, a holding time of 10 cycles, and a welding pressure of 0.10 MPa. Increasing of welding current, increased the tensile shear strength of the joint and also increased the amount of aluminum dispersion at the joint interface. The lap joint of steel over the aluminum (Type I) showed the higher joint tensile shear strength than a lap joint of aluminum over the steel (Type II). The indentation depth and the ratio of the indentation depth to the plate thickness decreased when the welding current was increased in the type I lap joint and also decreased when the welding current was decreased in the type II lap joint. The interface structure showed the formation of the brittle intermetallic compound that deteriorated the joint strength.
 Keywords
resistance spot welding;dissimilar materials;lap joint;strength;
 Language
English
 Cited by
1.
Tensile and Fatigue Behaviour of AA6022-T4 to IF Steel Resistance Spot Welds, Procedia Structural Integrity, 2017, 5, 1425  crossref(new windwow)
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