During the laser surface texturing, the high intensity of the laser beam pulse on the metal material surface results in the negative heat effect. A new processing approach of single pulse one time, repeating at intervals is presented in this paper. The movement control card and self-developed Qswitch card were programmed for coordinated control between laser system and movement control system. The new processing process was realized by the coordinated control and the technique of acoustic-optic Q-switched and servo control. The system was controlled by industrial computer. With the new approach, the micro-dimple and groove can be easily fabricated and the negative thermal effect can be reduced. The required micro-structures can be produced on the surface of friction units.
Key words
laser surface texturing /
process /
control system
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References
[1]符永宏,叶云霞,张永康,等. 用于显著改善摩擦副润滑状态的激光珩磨技术[J]. 机械工程学报, 2002,38(8):115-117.
FU Yong-hong, YE Yun-xia, ZHANG Yong-kang, et al. Technology of laser honing applied in distinctively improving the lubrication of frictional units[J]. Chinese Journal of Mechanical Engineering, 2002,38(8):115-117.(in Chinese with an English abstract)
[2]CHRISTOPHE V, GUY M, THIERRY B, et al. Control of the quality of laser surface texturing[J]. Microsystem Technologies, 2008,14:1553-1557.
[3]IZHAK E. State of the art in laser surface texturing[J]. ASME J.Tribol, 2005,127:248-252.
[4]VILHENA L M, SEDLACEK M, PODGORNIK B, et al. Surface texturing by pulsed Nd:YAG laser[J]. Tribology International, 2009,42:1496-1504.
[5]ETSION I, HALPERIN G. A laser surface textured hydrostatic mechanical seal[J]. Tribol Trans.,2002,45(3):430-434.
[6]ETSION I, SHER E. Improving fuel
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Footnotes
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