자동차구조용 고장력강(ATOS80)의 GMAW과 FCAW의 용접 변수에 따른 기계적 특성에 관한 연구

A study on the Mechanical Properties of Welding Parameters of GMAW and FCAW in Automotive High-Strength Structural Steel(ATOS80)

The present paper is aimed at investigating mechanical as well as metallurgical properties of ATOSOO high-tensile steel which is used in the indus1rial field in an atrernpt ID offer suggestions ID improve welding conditions in accordance with welding variables far gas metal arc welding and flux cored arc welding.Far this aim, welded positions were inspected airer welding proof pieoes in consideration of conditional variables far their welding and, then, a comparative analysis was canied out ID examine conditicmal status and defects, if any, of welded positions by testing their mechanical properties such as tensile strength, yield strength, elongation, hardness and brittleness.