Journal
OPTICS AND LASERS IN ENGINEERING
Volume 48, Issue 3, Pages 295-304Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.optlaseng.2009.11.006
Keywords
Laser truing and dressing; Bronze-bonded diamond grinding wheel; Topography; Grinding performance; Numerical simulation
Categories
Funding
- State Natural Science Foundation of People's Republic of China [50005005]
- State High-Tech Research and Development Plans (863 a state key project) [2007AA042006]
- Development Program of Cheung Kong Scholars and Innovative Team [531105050037]
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An acoustic-optic Q-switched YAG laser is newly developed for truing and dressing of bronze-bonded diamond grinding wheels through ablation in the radial direction. The laser ablation merges truing and dressing as a single process and can be easily controlled through an online closed-loop control system. The laser truing and dressing characteristics are investigated by wheel surface topography and a highspeed grinding test. A two-dimensional mathematical model is developed to simulate laser truing and dressing of bronze-bonded diamond grinding wheel. Based on the model, the ablation depth produced on bond and diamond abrasives by a pulsed laser under different parameters as well as the temperature field on grinding wheel surface produced in the laser ablation process are numerically simulated. Both the experimental results and the theoretical analysis indicate that the truing and dressing processes can be simultaneously realized with the laser ablation. (C) 2009 Elsevier Ltd. All rights reserved.
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