Macro-Residual Stress Field Retrieval for Predicting the Machining Deformation of Non-Prestretched Plate
The unknown and uneven macro-residual stresses in blanks will cause deformation on large-scale component, especially in non-prestretched plates. Based on the retrieval of stress field by measuring stress changes due to the rebalance of stresses after machining, a new idea is proposed in this paper to predict and control the machining deformation of large-scale components. It consists of analysis of the machining deformation, retrieval of macro-residual stress field, and finally optimization of following cutting process. In the retrieval process, the stresses are measured with an improved hole-drilling method and the measured data are then interpolated to 3D stress field.
Y. F. Yang et al., "Macro-Residual Stress Field Retrieval for Predicting the Machining Deformation of Non-Prestretched Plate", Advanced Materials Research, Vols. 317-319, pp. 386-392, 2011