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半导体激光器及其工业应用是激光领域研究与发展的热点,国内大功率半导体激光器的发展已经取得了较大进展,但基于国产大功率半导体直接输出激光器的自动化加工装备研究较少。研制了国产大功率半导体直接输出激光加工系统,开发了基于DSP的嵌入式激光加工过程检测与控制系统,设计了用于该系统闭环温度控制的模糊控制算法,并取得了良好的温度控制效果。基于该平台开展了激光宽带相变硬化实验,实验表明:在温度控制模式下,相变硬化层深度和硬度的一致性要优于恒定功率模式。
Semiconductor lasers and their industrial applications are the hotspots in the field of laser research and development. The development of domestic high-power semiconductor lasers has made great progress. However, there are few researches on the automated processing equipment based on domestic high-power semiconductor direct-output lasers. A direct output laser processing system for domestic high power semiconductors was developed. The detection and control system of embedded laser processing based on DSP was developed. The fuzzy control algorithm for closed loop temperature control of the system was designed and a good temperature control effect was obtained. Based on this platform, a laser broadband phase-change hardening experiment was carried out. The experimental results show that the consistency of depth and hardness of phase-change hardened layer is better than that of constant power mode in temperature control mode.