Al 6082-T6 고속 MIG 용접에서 기공방지를 위한 용접공정 개발에 관한 연구

Abstract

This paper was described on investigation to prevent porosity in high speed MIG Welding of Al 6082-T6. Porosity measurement was carried out by using image analysis of micrographs with the help of an analysis software. The main parameter was arc length and torch progressive angle. The porosity ratio was increased as arc length was increased. The arc length was increased as output voltage and bead width was increased. By the midium of proper selection of pulse parameter, generated a stable one pulse one drop. The porosity ratio of optimum condition in one pulse one drop was lower than not property condition. When torch progressive angle was an angle of advance 10°, porosity ratio was minium.