고출력 CW Nd:YAG 레이저를 이용한 인코넬 718 판재 절단시 모서리부 절단 특성 분석 (Investigation of Cutting Characteristics in the Sharp Corner for the Case of Cutting of Inconel 718 Super-alloy Sheet Using High-power CW Nd:YAG Laser)

서지정보

· 발행기관 : 대한용접접합학회
· 수록지 정보 : 대한용접접합학회지 / 26권 / 5호 / 90 ~ 96페이지
· 저자명 : 안동규, 변경원

초록

The objective of this paper is to investigate the effects of the laser power, the material thickness, corner
angles, and the loop size on the formation of the corner in the cutting of Inconel 718 super-alloy sheet
using high-power CW Nd:YAG laser. In order to investigate the influence of corner angles and loop sizes
on the melted area and the formation of corner in the sharp corner, angular cutting tests and loop cutting
tests were carried out. The results of the angular cutting tests were shown that the melted area is
minimized and the melting mode is changed from nose melting in the thickness direction to the secondary
melting induced by the attached dross when the corner angle is 90°. Through the results of loop cutting
tests, the variation of the melted area and the corner shape in the sharp corner according to the loop size
were examined. In addition, it was shown that a proper loop size is approximately 3 mm. The results of
above experiments will be reflected on the knowledge base to generate optimal cutting path of the laser.

영어초록

The objective of this paper is to investigate the effects of the laser power, the material thickness, corner
angles, and the loop size on the formation of the corner in the cutting of Inconel 718 super-alloy sheet
using high-power CW Nd:YAG laser. In order to investigate the influence of corner angles and loop sizes
on the melted area and the formation of corner in the sharp corner, angular cutting tests and loop cutting
tests were carried out. The results of the angular cutting tests were shown that the melted area is
minimized and the melting mode is changed from nose melting in the thickness direction to the secondary
melting induced by the attached dross when the corner angle is 90°. Through the results of loop cutting
tests, the variation of the melted area and the corner shape in the sharp corner according to the loop size
were examined. In addition, it was shown that a proper loop size is approximately 3 mm. The results of
above experiments will be reflected on the knowledge base to generate optimal cutting path of the laser.

참고자료

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