사다리꼴 모양의 돌기나 V형 홈을 갖는 형상 환상압연에 대한 UBET 해석

Abstract

To diversify the area of application of UBET to the analysis of ring rolling which produces rings having more complex cross-sectional configuration, an element of triangular cross-section has been introduced and the corresponding Cinematically admissible velocity field has been derived while considering the material flow between neighboring elements. The theoretical predictions in roll torque and profile formation show good agreement with the experiments. The effect of process parameters such as feed rate and taper angle of the roll groove has been discussed.