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脉冲激光电化学复合加工可以有效去除激光辐照区域内的电解产物,提高加工效率,改善加工质量.针对高性能金属材料的微细加工要求,采用脉冲激光电化学复合的应力刻蚀加工方法对铝合金的刻蚀特性进行理论和试验研究.通过比较激光直接刻蚀加工和激光电化学复合加工的特点,应用扫描电子显微镜、光学轮廓仪等检测技术分析了刻蚀区域的形貌特征.根据力学电化学原理,探讨了金属材料微结构加工的应力去除机理.通过加工试验,研究了工艺参数和加工方式对加工质量的影响,采用优化的工艺参数,加工出了质量较好的微结构.试验结果表明,激光电化学复合的连续扫描加工稳定性好,可以有效地降低表面粗糙度,提高加工质量.
Pulsed laser electrochemical machining can effectively remove the electrolysis products in the laser irradiation area to improve the processing efficiency and improve the processing quality.According to the requirements of fine processing of high-performance metal materials, the stress-etching process of pulsed laser electrochemical compound The etching characteristics of the alloy were studied theoretically and experimentally.Through the comparison of laser direct etching and laser electrochemical machining, the morphological characteristics of the etched region were analyzed by using scanning electron microscopy and optical profilometer.According to mechanics Electrochemical principle, the mechanism of stress removal in the microstructure processing of metal materials is discussed.The effects of the process parameters and processing methods on the processing quality are studied through the processing experiments, and the better quality microstructures are processed by using the optimized process parameters. The results show that the stability of the continuous scanning process of the laser electrochemical composite is good, which can effectively reduce the surface roughness and improve the processing quality.