<p>In this study, the variations in residual stress during laser-assisted cutting of the superalloy GH4169 under different cooling rates are investigated. By considering the coupling of heat dissipation rates, preheating temperature fields, and cutting forces, the evolution of residual stresses during laser-assisted turning and milling processes is analyzed. It is observed that significant residual tensile stresses result from faster cooling rates at the material surface. Decreasing cooling rates diminish the temperature differential between the processed surface and the ambient air, leading to smaller residual tensile stresses on the machined surface. In laser-assisted milling, residual compressive stresses form due to limited stress relaxation in the third deformation zone, compounded by the decrease in material strength limits at high temperatures. Consequently, higher residual compressive stresses occur due to the reduced tensile stresses required for interfacial fracture during surface formation. The evolution mechanism of residual stresses is elucidated, and the influence of temperature changes on residual stress formation at different stages is analyzed based on a thermomechanical orthogonal cutting simulation model. This reveals the transition of residual stresses from tensile to compressive under laser preheating conditions. Simulation results demonstrate a proportional relationship between residual stresses and preheating zone temperatures within the range of 0 to 650&#xa0;°C. This research offers insights into the complex interplay between thermal and mechanical factors governing residual stress formation during laser-assisted cutting of superalloy alloys, shedding light on the transition of residual stresses and their dependence on temperature variations.</p>