脉冲光纤激光修锐青铜金刚石砂轮试验研究

陈根余; 李宗根; 邓辉; 袁勃; 陈俊

doi:10.7510/jgjs.issn.1001-3806.2013.06.001

脉冲光纤激光修锐青铜金刚石砂轮试验研究

1.
湖南大学汽车车身先进设计制造国家重点实验室, 长沙 410082;
2.
湖南大学激光研究所, 长沙 410082

作者简介: 陈根余(1965-),男,教授,博士生导师,主要从事汽车激光制造及激光微细加工方面的研究。E-mail: hdgychen@163.com.

基金项目:
国家工信部"高档数控机床与基础制造装备"科技重大专项资助项目(2012ZX04003-101)
中图分类号: TN249

Experimental study about dressing bronze-bonded diamond grinding wheels with pulsed fiber laser

1.
State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha 410082, China;
2.
Laser Research Institute, Hunan University, Changsha 410082, China
CLC number: TN249

摘要: 为了寻求超硬磨料砂轮的修锐新方法,采用脉冲光纤激光径向辐照,对青铜结合剂金刚石砂轮进行了修锐试验研究。理论分析了脉冲激光修锐青铜结合剂金刚石砂轮的基本原理;借助超景深3维显微系统和粗糙度测试仪,获得了脉冲光纤激光烧蚀青铜结合剂轮烧蚀凹坑的表面形貌和深度,总结了激光平均功率、脉冲重复频率和离焦量等参量对烧蚀效果的影响规律;根据试验结果选择最佳工艺参量(Pm= 20W, f=70kHz,Δ=0.0mm),开展了激光修锐青铜结合剂金刚石砂轮的试验,并采用超景深3维显微系统对修锐后的砂轮表面形貌进行观测。结果表明,在合理工艺参量下,脉冲光纤激光径向辐照修锐青铜结合剂金刚石砂轮,可获得良好的修锐效果。
- 激光技术 /
- 激光修锐 /
- 光纤激光器 /
- 超景深3维显微系统 /
- 青铜结合剂金刚石砂轮
Abstract: In order to find a new method to dress super-abrasive grinding wheels, experiments were carried out on bronze-bonded diamond grinding wheels with a pulsed fiber laser irradiating in radial orientation. Its basic principle was analyzed. After the ablation of bronze-bonded wheel by means of a pulsed fiber laser, the surface morphology and depth of ablated craters were observed by 3-D video microscopy system with super depth of field and surfagauge, and the influences of laser average power, pulse repetition frequency and defocusing amount on the ablation effect were summarized. According to the experimental results, the laser dressing experiments were carried out with the best process parameters(Pm=20W, f=70kHz,Δ=0.0mm), and the surface topography after laser dressing was observed by a 3-D video microscopy system with super depth of field. The results show that, dressing of bronze-bonded diamond grinding wheels with a pulsed fiber laser irradiating in radial orientation can bring out good dressing effect with the reasonable processing parameters.
- laser technique /
- laser dressing /
- fiber laser /
- super depth of field 3-D video microscopy system /
- bronze-bonded diamond grinding wheel

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脉冲光纤激光修锐青铜金刚石砂轮试验研究

作者简介: 陈根余(1965-),男,教授,博士生导师,主要从事汽车激光制造及激光微细加工方面的研究。E-mail: hdgychen@163.com.

Experimental study about dressing bronze-bonded diamond grinding wheels with pulsed fiber laser

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脉冲光纤激光修锐青铜金刚石砂轮试验研究

作者简介: 陈根余(1965-),男,教授,博士生导师,主要从事汽车激光制造及激光微细加工方面的研究。E-mail: hdgychen@163.com

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Experimental study about dressing bronze-bonded diamond grinding wheels with pulsed fiber laser

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脉冲光纤激光修锐青铜金刚石砂轮试验研究

作者简介: 陈根余(1965-),男,教授,博士生导师,主要从事汽车激光制造及激光微细加工方面的研究。E-mail: hdgychen@163.com.

Experimental study about dressing bronze-bonded diamond grinding wheels with pulsed fiber laser

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脉冲光纤激光修锐青铜金刚石砂轮试验研究

作者简介: 陈根余(1965-),男,教授,博士生导师,主要从事汽车激光制造及激光微细加工方面的研究。E-mail: hdgychen@163.com

English Abstract

Experimental study about dressing bronze-bonded diamond grinding wheels with pulsed fiber laser

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