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Vol.34, No.2, 261 ~ 270, 1996
Title
Research Paper - Welding & Joining - : Effects of Welding Conditions on Spot Weldability of Galvanized Steel Sheet
이준수Jun Soo Lee, 진억용Eog Yong Chin
Abstract
Spot welding, a kind of electric resistance welding, is a welding method widely used for automobile, aircraft, and appliance industry. By measuring and observing tensile shear strength of spot welding specimens, alloying degree of electrode tips, and nugget cross section under various welding conditions, we have the following results; 1) The spot weldability of the galvanized steel sheet increases with the welding current within the range of 8-11 KA. 2) For a high current density spot welding, the Al₂O₃-Cu electrode tip was better than the Cr-Cu electrode tip on the spot weldability. 3) Electrode tip pressure did not affected the spot weldability, in the tested pressure range (200∼300Kgf).
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