针对光杠在实际工作中的特点, 提出用激光螺旋扫描淬火的方法提高光杠的耐磨性能。通过利用Abaqus软件对光杠进行三维实体建模, 细化作用面, 细分作用时间步长等操作, 对光杠圆周表面激光螺旋扫描淬火的温度场瞬态形成进行仿真分析。通过对仿真所得结果进行分析发现, 螺旋扫描时的螺距对后道激光光斑扫描淬火时所形成的温度场有一定的影响。揭示了前后道激光螺旋扫描淬火光道之间的温度场耦合是造成后道淬火光道激光淬火时所形成温度场变高的主要原因。并且由于螺距的不同, 影响的程度也不同。本研究为利用Abaqus软件对光杠圆周表面激光螺旋扫描淬火温度场仿真分析提供了指导, 同时对圆柱圆周表面激光螺旋扫描淬火工艺应用于实际生产有很大的帮助。

In this paper, the characteristics of guider bar is considered and a method of laser spiral scanning quenching on a guider bar’s circumferential surface is proposed to improve the wear-resisting performance of guider bar. Abaqus software is used to simulate the temperature field. Through three-dimensional solid modeling of a guider bar, and operations such as refining effect surface and refining role time step, the transient temperature field formation of laser spiral scanning quenching on cylindrical circumferential surface of guider bar is achieved. By analysis of simulation results, it is shown that the quenching temperature field forming at the second scanning lap is influenced by the residual quenching temperature field of the first scanning lap. The different scanning pitch makes the different influence. It reveals that the influence of the adjacent scanning lap’s temperature field coupling on the quenching zone is the main reason for the difference. This study will provide the guidance for using Abaqus software to simulate the temperature field of laser spiral scanning quenching on a guider bar’s circumference surface and could help the laser quenching process for application to actual.