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Abstract: Truing
and dressing of bronze-bonded diamond grinding wheels by acoustic-optic
Q-switched YAG pulse laser in the radial orientation is studied. The
mechanism of truing and dressing is analyzed and the reasonable
parameters of truing and dressing are found by the mathematical model
and the single laser pulse ablation experiment. An online workpieces
position measuring and closed loop control system are developed. Based
on this system, ideal precision and good wheels’ surface topography of
truing and dressing have been obtained. Especially, truing and dressing
can be carried out at the same procedure compared with the conventional
methods which grinding wheels need to be dressed after truing. And then
the effects of dressing and truing have been analyzed by the grinding
contrast experiments.
Key words: Laser truing and dressing Diamond wheels Precision
controlled Thermal conductive computation Q-switched pulse YAG
laser
CLC No: TG442
国家自然科学基金(50005005)和湖南省重点科技攻关基金(04GK2004)资助项目.
Received 20040626, received in revised form 20041120
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