Sunday, 29 May, 2022




Response Surface Modelling of Bottom Kerf Deviation in Nd-YAG Laser Cutting of Al 6061-T6 Alloy Sheet

JUET Research Journal of Science & Technology

Volume 6 Special Issue

Published: 2020
Author(s) Name: Priyanka Joshi, Md Tasnim Arif and Amit Sharma | Author(s) Affiliation: Jaypee University of Engineering and Technology, Guna, Madhya Pradesh, India.
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Laser beam cutting (LBC) is the most acceptable method for creating complex geometries in sheetmetal with close tolerances and high precision. The reflective nature of Al-alloy possesses problems to absorb the laser light. Hence, the shorter wavelength laser is advised for cutting of reflective sheetmetals. This paper presents the modelling of bottom kerf deviation during pulsed Nd-YAG laser cutting of Al 6061-T6 sheet. The deviation of laser cut in the study is examined by considering the four cutting parameters (lamp current, pulse width, pulse frequency and cutting speed). Experiments have been conducted using Box-Behnken design (BBD) and subsequently, experimental results have been analyzed for developing the response surface model. Further, the model has been used for parametric study.

Keywords: Al-alloy sheet, Cutting, Modelling, Nd-YAG laser, Response surface methodology.

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