Temperature Distribution and Stress Analysis of Aluminium Oxide Work-Piece during Laser Micro Machining Operation

Abstract

The current study investigates the temperature distribution, stress analysis and material removal of aluminum oxide work piece. Temperature distribution of Aluminum Oxide work-piece when a laser beam (of laser cutting machine) is focused on it to create a micro groove as a part of machining process. Present Demand of industry currently focus on ceramics because of its vast and potential use in many fields such as vehicle sector(automobile), aerospace and bio-medical engineering applications, etc. As part of machining process, a micro groove needs to be created on a crude design material. Aiming at this, a laser cutting machine is employed to create a micro groove which works on a principle that when a high power laser beam is focused on a surface of the body, material gets removed as a result of large amount of heat energy released by the laser beam. Achieving a desired groove of specific dimensions is possible by having control over process parameters of a laser cutting machine which in turn governs the amount of material removed. To tackle with this it is essential to study the temperature distribution (due to heat energy released by laser beam) in the body that is responsible for material removal. ANSYS FEA is used to simulate and analyze this temperature distribution. In this paper temperature graphs for 40W,50W, Material removal for 40W, 50W, Equivalent stress for 40W, 50W are shown.