• Gavendra Norkey

Pulsed Nd:YAG laser is used for the purpose of cutting of 8011 sheet of aluminium. Highly reflective and thermally conductive sheets can be cut suitably with the help of laser. Qualitatively cutting of sheets have to be depended on the properties of the materials like optical and thermal. Due to the highly reflective surface of the work material i.e. aluminium sheet which is not possible to cut preciously with the help of any other machining processes. Wavelength of Nd:YAG laser is having 1.06 µm which is less as compared to CO2 laser (10.6 µm). Nd:YAG laser is easily absorbed by the highly thermal conductive materials due to its minimum wavelength. Wide uses of the aluminium alloy thermally conductive material in technologically advanced industrial sectors like aerospace and automobile. Complex shapes and stringent design can be cut preciously by proper controlling of the input parameters. For getting the optical setting of process parameters the impact of their variation on various quality attributes of interest is required to be discussed. In this paper the control factors i.e. pulse width, cutting speed, pulse frequency and assist gas pressure on kerf taper (KT) and material removal rate (MRR) have been experimentally investigated. The empirical model for KT and MRR has also been developed.

8011 sheet of aluminium, laser beam cutting, material removal rate,Kerf taper

"Investigation of laser parameters in Al sheet", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 10, page no.247-255, October 2018, Available :http://www.jetir.org/papers/JETIRDQ06035.pdf

"Investigation of laser parameters in Al sheet", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 10, page no. pp247-255, October 2018, Available at : http://www.jetir.org/papers/JETIRDQ06035.pdf