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激光淬火是将激光光束照射到工件表面从而使温度上升以得到相应的相变组织的一个过程。激光淬火能够提高淬火区域抗磨损、抗疲劳以及抗腐蚀的机械性能。但是由于在激光淬火过程中影响激光表面淬火温度场形成的因素很多,所以很难建立起相应的激光淬火温度场控制数学模型。本文在研究中利用先进的模糊控制技术,设置相应的模糊控制规则表,从而通过激光淬火实时的温度反馈,实现对工件表面的激光淬火温度场进行可靠控制,从而保证淬火质量。本文所涉及的激光淬火温度场模糊控制算法是以工件表面淬火温度偏差为输入,以扫描速度为输出的单输入单输出的模糊控制,具有实用性和可靠性。
Laser quenching is the process of irradiating a laser beam onto the workpiece surface to raise the temperature to obtain the corresponding phase-change microstructure. Laser quenching improves the mechanical properties of the quenched area against wear, fatigue and corrosion. However, due to many factors that influence the laser quenching temperature field during laser quenching, it is very difficult to establish the corresponding mathematical model of laser quenching temperature field control. In this paper, the advanced fuzzy control technology is used to set the corresponding fuzzy control rules table, so that the laser quenching temperature field can be reliably controlled by laser quenching real-time temperature feedback to ensure the quenching quality. The laser quenching temperature field fuzzy control algorithm involved in this paper is based on the workpiece surface quenching temperature deviation as the input, the scan speed as the output of single-input single-output fuzzy control, practicality and reliability.