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介绍了几种调控材料力学性能的特种激光加工方法。所谓激光毛化,是利用高功率密度激光在轧辊表面制造指定形貌和粗糙度,该方法不仅可以改善轧辊的性能与功能,还可以通过冷轧工艺改善所轧薄板的质量与性能。所谓激光界面强化,是在电镀铬前先对基体进行激光离散热处理,以此影响电镀时该基体上镀层原子的沉积过程、细化镀层组织并优化其与基体的界面结构,从而提高镀层部件的性能和寿命。所谓激光辅助成形,则是利用激光热效应作用工件的局部区域,通过诱导弹性应力做塑性功,实现其塑性成形或改善其形状精度。
Several special laser processing methods are introduced to control the mechanical properties of materials. The so-called laser texturing, is the use of high-power density laser in the roll surface to create the specified topography and roughness, the method can not only improve the performance and function of the roll, but also by cold rolling process to improve the quality and performance of the sheet. The so-called laser interface enhancement, before the chromium plating on the substrate before laser discrete heat treatment, so as to affect the plating process of plating atoms on the substrate deposition process, refine the coating structure and optimize its interface with the substrate structure, thereby enhancing the coating components Performance and longevity. The so-called laser-assisted forming, it is the use of laser heat effect of the workpiece in the local area, by inducing elastic stress plastic work, to achieve its plastic forming or improve its shape accuracy.