Research on machining deformation prediction of multi-frame components considering inter-regional spatiotemporal interaction effect

作者：Xingliang Chai, Jianchi Yu, Haibo Liu, Chun-Hui Wu, Rui Fang, Lingqi Zeng, Tianran Liu, Yongqing Wang · 发表于：Machining Science and Technology · 年份：2025 · DOI：10.1080/10910344.2025.2507004 · 被引用次数：1 · 研究领域：Advanced machining processes and optimization、Manufacturing Process and Optimization、Advanced Measurement and Metrology Techniques

Large, thin-walled structural components with large geometric size, low stiffness and complex profiles, which are widely used in the aerospace field. Because of initial residual stresses, with the large amount of material removal in processing and the long processing cycle, the rebalancing of initial residual stresses among various areas of the workpiece will produce a large overall deformation. In this article, the rectangular multi-frame thin plate is taken as the research object. Considering the influence of stress release on the overall deformation of other frame areas, the concept of time attenuation coefficient is introduced to describe the influence of initial stress release on deformation caused by time change, and an analytical model of spatiotemporal interaction deformation is established. Taking two typical frame machining processes as examples, the process conditions are substituted into the analytical model to solve the deformation. The accuracy of the model is verified by comparing the finite element analysis and cutting experiment. The experimental results show that the model established in this article can accurately predict the overall deformation, which is of great significance in controlling the overall deformation of large, thin-walled parts machining in the field.