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Advances in Nano Research Volume 12, Number 6, June 2022 , pages 583-592 DOI: https://doi.org/10.12989/anr.2022.12.6.583 |
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An experimental study on the picosecond laser dressing of bronze-bonded diamond wheels |
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Yanyi Wang, Genyu Chen, Bang Hu and Wei Zhou
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| Abstract | ||
| In this paper, a pulsed picosecond laser dressing method for bronze-bonded diamond wheel is studied systematically and comprehensively. The picosecond laser pulse ablation experiment is carried out, and the ablation thresholds of bronze-bonded and diamond abrasive particle are measured respectively. The results indicate that the single-pulse ablation thresholds of bronze-bonded are 0.89J/cm2, 0.24J/cm2 during strong/weak ablation stages. And the multi-pulse ablation thresholds of diamond abrasive particle are 1.69J/cm2, 0.49J/cm2 during strong/weak ablation stages. Obviously, diamond grains have less thermal damage during the process of gentle ablation. The diamond grains of the grinding wheel surface are graphitized during laser dressing. The bronze-bonded is relatively smooth and organizational stability, and the diamond grits have suitable prominent height, which are beneficial to maintain the good grinding performance of dressed bronze-bonded diamond grinding wheels. | ||
| Key Words | ||
| ablation thresholds; dressing; diamond grinding wheel; picosecond laser | ||
| Address | ||
| Yanyi Wang, Bang Hu and Wei Zhou: State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha 410082, China/ Laser Research Institute, Hunan University, Changsha 410082, China Genyu Chen: Laser Research Institute, Hunan University, Changsha 410082, China | ||