针对圆柱圆周表面激光淬火时出现的问题，提出了考虑激光淬火过程中已淬火区域残留温度场对淬火区域温度场形成产生的影响的圆柱圆周表面激光淬火温度场算法。在此算法中，假设激光光束为均匀能量分布，通过对基于半无限体移动面热源的瞬态温度场算法的改进，实现对圆柱圆周表面激光淬火瞬态温度场的计算。通过对不同直径的圆柱圆周表面激光淬火温度场进行计算，从而对温度场耦合对圆柱圆周表面激光淬火温度场形成所产生的影响进行分析。结果说明，圆柱直径的大小影响着温度场耦合的程度，进而影响着激光淬火温度场的形成。

In order to analyze the problem of laser quenching on the cylinder circumferential surface, we put forward an arithmetic model considering the influence of residual temperature field of quenched area on the formation of the temperature field of quenching area. A laser beam of uniform intensity is assumed in this arithmetic. Through improving the algorithm based on semi-infinite material under a moving surface heat source, an algorithm of temperature field of laser quenching on cylinder circumferential surface is implemented. And by calculating laser quenching temperature for circumferential surfaces of cylinders with different diameters, the impact of temperature field coupling on the formation of temperature field of laser quenching on the cylinder circumferential surface is analyzed. The result shows that the diameter influences the effect of the coupling of the temperature fields, and then affects the formation of laser quenching temperature field.