035_용접 결함 완벽 정리 기공·슬래그·언더컷·용입불량 원인과 대책 한 번에 이해하기

Welding defects are the most critical management item that threatens the quality and safety of structures. Porosity, slag inclusion, undercuts, and poor penetration can easily occur due to even minor work errors. In this video, we have easily summarized the causes and countermeasures for common welding defects. This covers key content that can be immediately applied in the field by everyone from beginners to experienced professionals. NADAY Welding Research Institute NADAY.TISTORY.COM