Fiber Laser Cutting of Nimonic C263 Alloy and Investigation of Surface Integrity Conference paper First Online: 23 November 2019
Part of the
Lecture Notes on Multidisciplinary Industrial Engineering
book series (LNMUINEN) Abstract
Nimonic C263 is a super alloy which contains more than 50% nickel, and is mainly used in gas turbines and internal combustion engines. The present study deals with the fiber laser cutting of Nimonic C263 super alloy using nitrogen as assisting gas. Several experiments were performed by varying the process parameters, such as cutting speed, laser power, gas pressure, position of focus point with respect to the top surface of the workpiece and duty cycle, to observe their influences on the cut-surface integrity. The prepared samples were characterized by FESEM examination, microhardness test, optical microscopy and XRD technique. The average kerf width, heat-affected zone and surface roughness values varied from 201 to 261 µm, 7.96 to 9.30 µm and 2.02 to 3.42 µm.
Keywords Fiber laser Cutting Surface integrity Striation References
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