中南大学学报（自然科学版）2017，Vol.48Issue(2)：355-360,6.DOI:10.11817/j.issn.1672-7207.2017.02.013
加工形态对铝合金薄壁件加工变形的影响
Influence of processing form on milling distortion of aluminum alloy thin-walled workpiece
摘要
Abstract
In view of the milling deformation of aeronautical thin-walled workpiece, the influence of processing form (material removal rate, milling slot number and milling depth) on milling deformation was simultaneously analyzed by using finite element method. The accuracy of the simulation results was verified by the experiment. The results show that when material removal rate in width direction decreases, the bend deformation in length direction drops. When material removal rate in length direction decreases, the deformation in width direction decreases, but the deformations in length direction are uniform. When material removal rate is greater than 85%, bend deformation is the same at different slot numbers. When material removal rate is less than 85%, the deformations of the multi-frame components are bigger than those of the single-frame components. Both length and width bend deformations increase and then decrease with the increase of the milling depth. The simulation results coincide with the experimental results. The study can provide useful references for controlling milling deformation of the thin-walled workpieces.关键词
铝合金薄壁件/加工形态/有限元方法/加工变形Key words
aluminum alloy thin-walled workpiece/processing form/finite element method/milling deformation分类
矿业与冶金引用本文复制引用
肖峰,吴运新,龚海,李晨,刘瑶琼,姬浩..加工形态对铝合金薄壁件加工变形的影响[J].中南大学学报（自然科学版）,2017,48(2):355-360,6.基金项目
国家自然科学基金资助项目(51405520,51327902) （51405520,51327902）
国家国际科技合作专项(2014DFA51250)(Projects(51405520, 51327902) supported by the National Natural Science Foundation of China （2014DFA51250）
Project(2014DFA51250) supported by the International Science & Technology Cooperation Program of China) （2014DFA51250）
