Heat Transfer Model for Pulse Laser Assisted Machining of ZrO₂

Abstract:

Laser assisted machining (LAM) is one important solution for machining difficult-to-machine materials. The heat transfer model of quasi steady state in laser assisted micro machining is built, and the simulation software for temperature distribution measurement is developed based on MATLAB. The simulated temperature distribution of the ZrO₂ ceramic heated by pulse laser shows a good agreement of tendency with the corresponding experimental results through the infrared temperature measurement method, while the simulated temperature is consistently overestimated. This difference maybe results from the neglect of the heat loss caused by the heat radiation and the heat convection in the model. The proposed model in this paper could provide reference for the selection of optimal process parameters and improve the machining quality, which are closely related to the temperature distribution.

• Periodical: Materials Science Forum (Volumes 836-837)
• Pages: 430-435
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.836-837.430
• Online since: January 2016
• Authors: Huan Lu, Shu Long Wang, Ning He*, Liang Li, Xiu Qing Hao
• Keywords: Laser Assisted Machining, Pulse Laser, Temperature Distribution Simulation, ZrO₂ Ceramic

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