【摘要】 涡轮盘是航空发动机的核心零件之一。研究中发现，实际生产中涡轮盘榫槽工作面与叶片榫齿的接触并非完全平整，导致应力集中和磨损加剧。针对GH4133B涡轮盘榫槽精拉削后工作面波纹问题，建立了拉刀局部几何角度分布模型和单位面积拉削力数学模型，并通过有限元仿真分析了动态拉削力作用下的榫槽变形规律。研究结果表明，榫槽厚度、两侧刚度差异及安装角对加工精度有显著影响。基于仿真结果，提出了针对性的工艺优化方案，以提高拉削效率和精度，为涡轮盘制造提供了重要的工艺基础。更多还原

【Abstract】 The turbine disk is recognized as one of the core components of an aero engine. Through research, it has been identified that in actual production, the contact between the working surface of the turbine disk slots and the slot teeth of the blade is not entirely flat, leading to stress concentration and exacerbated wear. In response to the issue of ripples observed on the working surface of the slots of the GH4133B turbine disk following precision broaching, a model for the distribution of the local geometric angles of the broach is established, alongside a mathematical model for the broaching force per unit area. The deformation law of the slots under the influence of the dynamic broaching force is analyzed through finite element simulation. It is demonstrated by the research results that the thickness of the slots, the disparity in stiffness on both sides, and the installation angle significantly affect the machining accuracy. Based on the simulation outcomes, targeted process optimization schemes are proposed to enhance broaching efficiency and accuracy, thereby laying a crucial process foundation for the manufacturing of turbine disks.更多还原