Chinese Journal of Lasers, Volume. 36, Issue 1, 210(2009)
Study and Practice on Multi-Head Laser Texturing Technology Using Polygon Scanning for Beam Modulation
Multi-heads laser texturing (LT) technology using polygon scanning beam modulation is proposed to increase the production efficiency to meet the industrial need and produce cold roll steel sheet with controllable surface topography. Optical design, system principle and the practice are introduced. The results indicate that single-head pulse repetition frequency of 30 kHz and crater density of 7×7 dots per square millimeter can be obtained, with pulse width ranging from 0.03 ms to 1 ms. For roll with length of 1800 mm and diameter of 600 mm, when textured in 6×6 dots per square millimeter, the texturing efficiency can reach 35 min per roll, enough to meet the industrial requirement. Meanwhile, round texturing craters are obtained, which improves the uniformity of the steel sheet and its mechanical properties effectively. Double-heads laser texturing equipment based on this technology is already in practice and the results are satisfying.
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Zhou Le, Chen Peifeng, Wang Ying. Study and Practice on Multi-Head Laser Texturing Technology Using Polygon Scanning for Beam Modulation[J]. Chinese Journal of Lasers, 2009, 36(1): 210