소결체의 Nd:YAG 레이저 용접 시 보호가스가 용접강도에 미치는 영향

• 영문명: Effect of Shielding Gases on the Welding Strength in Nd:YAG Laser Welding of Sintered Material
• 발행기관: 한국레이저가공학회
• 저자명: 김용(Y. Kim) 양현석(H. S. Yang) 박기영(K. Y. Park) 이경돈(K. D. Lee)
• 간행물 정보: 『한국레이저가공학회 학술대회 논문집』2007년도 추계학술발표대회 논문집, 10~14쪽, 전체 5쪽
• 주제분류: 공학 > 기계공학
• 파일형태: PDF
• 발행일자: 2007.11.30

영문 초록

  This study includes the effects of shielding gas types and flow rate on Nd:YAG Laser weldability of sintered material. The types of shielding gas were evaluated for He, Ar and N₂. Bending strength, porosity rate, hardness and D/W ratio testing of laser weld are carried out to evaluated the quality for fusion area. As a results, Ar gas was showed the best welding strength even the porosity rate is the most value, and increased the flow rate was also improvement the bending strength. Therefore we could know that bending strength is not only affect the porosity rate but also melting degree.

목차

ABSTRACT
1. 서론
2. 실험방법
3. 결과 및 고찰
4. 결론
참고 문헌