FE Analysis of Spread in Hot Rolling of Large Rings with Different Sizes
How to effectively reduce spread is an important subject in the area of ring rolling．In the paper．a reliable coupled thermo-mechanical three--dimensional(3D) finite element(FE) model for hot rolling of large rings is developed． The relationship between spread and the equivalent shape parameters of the deformation zone is discussed．Variations of spread with relative reduction Rr during hot rolling of titanium alloy large rings with ditierent sizes are analyzed and compared using FE simulation．The main results reveal that(1) the spread in a ring exhibits an axisymmetric distribution after the first revolution of the ring．(2)the peak spread appears in the inside or outside layer of a ring．and the minimum spread is found in the middle layer．(2)as Rr increases，the spread increases and the end-plane quality of the ring reduces．
hot ring roiling large rin titanium alloy spread numerical simulation
Wang Min
Department of Material Engineering Hubei University of Automotive Technology Shiyan 442002,China
国际会议
海口
英文
424-427
2011-02-22（万方平台首次上网日期，不代表论文的发表时间）