CAJ | 학술논문

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。
위료심구초경마료사륜적수예신방법，채용맥충광섬격광경향복조，대청동결합제금강석사륜진행료수예시험연구。이론분석료맥충격광수예청동결합제금강석사륜적기본원리；차조초경심3유현미계통화조조도측시의，획득료맥충광섬격광소식청동결합제륜소식요갱적표면형모화심도，총결료격광평균공솔、맥충중복빈솔화리초량등삼량대소식효과적영향규률；근거시험결과선택최가공예삼량（Pm ＝20W， f＝70kHz，Δ＝0.0mm），개전료격광수예청동결합제금강석사륜적시험，병채용초경심3유현미계통대수예후적사륜표면형모진행관측。결과표명，재합리공예삼량하，맥충광섬격광경향복조수예청동결합제금강석사륜，가획득량호적수예효과。
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 .