자동차용 알루미늄도금 강판의 용접성(I) (저항 점용접부의 금속학적 거동)

Weldability of Aluminized Sheet Steels for Automobile Application(I) (Metallurgical Behavior of Resistance Spot Weld)

This study deals with the resistance spot welding of aluminized steels. According to the test results it was clear that the weldability of aluminized steels was equivalent to or better than that of Zn coated steel. Microstructural inspection revealed that molten aluminum that was repelled from the weld during the process, piled up at the split zone. The test results also demonstrated that the weld metal of aluminized steels could hardly produce the weld crack even higher welding heat Input was applied.