A new approach to deformation control of aeronautical monolithic components of aluminum alloy plates based on stress inverse and stress evaluation

• DOI: 10.1360/sst-2019-0089
• Publication Date: 2020-01-15T07:50:10Z
• Authors: GuoHua QIN; HuaMin WANG; Feng LIN; ShiPing SUN; YiXiang GUO; TieJun WU; ZhuXi WU
• Keywords: 0203 mechanical engineering; 02 engineering and technology

In the high-speed machining process of aeronautical monolithic component, release residual stresses is a crucial factor deformations with material removal 7075 aluminum alloy thick plates. Therefore, investigation on evolution mechanism deformation stress for quality control. It vital to achieving high-efficiency and precise process. this work, bending theory employed formalize mechanical model deformation, which influenced by materials. The finite element method used calculate unit producing in each layer plate. force established so that can decompose be multiple stress. Further, considering self-equilibrium stresses, specification proposed based fact requirement represents control limit deformation. By introducing new variable, sandwich theorem convert into linear homogeneous inequalities. pivot transformation suggested solve model. Finally, representing an arbitrary variable as difference between two non-negative variables, programming judge whether measured blank initial solution specification. This evaluate within requirement. active evaluation deduced from passive analysis transformation, provide proper upper Obviously, plays very important role bridge manufacturing