| Affiliation: | (1) Department of Mechanical Engineering, Chungbuk National University, San 48, Gaesin-Dong, Heungduk-Gu, Cheongju, 361-763 Chungbuk, Korea;(2) LG Industrial Systems Co., Ltd., Songjung-Dong, Heungduk-Gu, Cheongju, 361-720 Chungbuk, Korea;(3) Graduate School of Mechanical Engineering, Chungbuk National University, San 48, Gaesin-Dong, HeungdukGu, Cheongju, 361-763 Chungbuk, Korea |
| Abstract: | The process design of hot forging, asymmetric to symmetric rib-web shaped steel, which is used for the turnout of express
rails has been studied. Owing to the great difference in shape between the initial billet and the final forged product, it
is impossible to hot forge the rail in a single stage operation. The numerical simulation for hot forging of asymmetric shape
to symmetric shape was carried out by using commercial FEM code, DEFORMTM-2D. For comparison with the simulation results,
a experiment of flow analysis using plasticine was also carried out. The results of the flow experiment showed good agreement
with those of the simulation. |
