Study on reasonable process parameters of opposite roller power spinning for super-large cylindrical part

CHEN Kai-da; LI Fan; ZHANG Hao-tian; GAO Zhi-jie; SUN Hao-ran; ZHU Wen-yu; ZHAO Sheng-dun

doi:10.3969/j.issn.1001-196X.2023.06.003

Abstract：Aluminum alloy has the advantages of light weight,high strength,corrosion resistance,etc.,and the ultra-large thin-walled cylinder made of aluminum alloy are widely used in the aerospace industry.At pres-ent,these cylindrical parts are welded using splicing process,so it is low strength,poor working reliability,heavy weight and low production efficiency.Based on which this pape proposes to take the whole thick-walled annular parts as raw material and use opposite roller power spinning process.In order to study the thinning process of super-large aluminum alloy cylinder by using the power spinning process,the effect of single pass thinning rate,billet rotation speed and radial feed speed of spinning wheel on the roundness of the billet after thinning,thinning effect,stress distribution of the billet and the reaction force on the spinning wheel during the spinning process was analyzed by the finite element method.The finite element method was used to analyze the effects of single pass thinning rate,billet rotation speed,and radial feed rate of the spinning wheel on the roundness of the billet after thinning,thinning effect,billet stress distribution,and the reaction force on the spinning wheel during the spinning process.The results show that when the thinning rate is 40%～50%,the billet rotation speed is 6～10 m/s,and the radial feed speed of the spin wheel is 0.1 mm/s,the forming quali-ty of the formed parts is better,and when the radial feed speed of the spin wheel is increased in the range of 0.1～1 mm/s,the production efficiency could be improved effectively and the forming quality is less affected.