Laser dressing of metal bonded diamond blades for cutting of hard brittle materials
Laser dressing of metal bonded diamond blades for cutting of hard brittle materials
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DOI：
10.2351/1.3685300
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发表时间：
2012-02
影响因子：
2.1
通讯作者：
P. Witzendorff;A. Moalem;R. Kling;L. Overmeyer
中科院分区：
文献类型：
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作者：
P. Witzendorff;A. Moalem;R. Kling;L. Overmeyer
在这项研究中，作者研究了金属结合剂金刚石刀片的激光修整，通过具有不同的脉冲宽度和波长的激光脉冲。传统的修整会遭受过度的刀片磨损，而激光修整能够精确地去除结合金属，以产生突出金刚石颗粒所需的切屑空间。加工这种复合材料的挑战是找到合适的结合金属烧蚀水平，而不会通过开裂或石墨化损坏金刚石颗粒。针对磨损叶片，研究了脉冲宽度和波长对激光修锐表面形貌和粘接金属去除的影响。实验是用532和1064 nm的激光辐射进行的，脉冲宽度从12 ps到20 ns。用共聚焦显微镜测量修整后的刀片表面形貌和粘结金属去除，通过扫描电子显微镜检查识别突出的金刚石颗粒。调味料...
In this study, the authors investigate the laser dressing of metal bonded diamond blades by means of laser pulses with different pulse durations and wavelengths. Conventional dressing suffers from excessive blade wear, whereas laser dressing enables precise removal of the bonding metal to generate the required chip space of protruding diamond grains. The challenge for processing this composite material is to find appropriate level of ablation for the bonding metal without damaging the diamond grains through cracking or graphitization. For worn out blades, the influence of pulse duration and wavelength on laser dressed surface topography and bonding metal removal is studied. The experiments are performed with 532 and 1064 nm laser radiation with pulse durations from 12 ps to 20 ns. The blade surface topography and bonding metal removal of the dressed blades are measured with a confocal microscope, where the protruding diamond grains are identified by scanning electron microscope examinations. The dressing ...