알루미늄합금은 MIG 용접 후 모재에 비해 인장강도가 65.6% 저하되었지만, 열처리를 적용할 경우 1.55~35.4%까지 향상되었음을 확인하였다.
Although the tensile strength of the aluminum alloy decreased by 65.6% compared to the base metal after MIG welding, it was confirmed that it was improved by 1.55~35.4% when heat treatment was applied.