APDL-Based Numerical Simulation of Stretching with Horizontal V-Shaped Anvils

作者：Zhang Liping; Yu Suoqing; Wang Aobing; Ni Liyong^*

来源：2nd International Conference on Modelling and Simulation, 2009-05-21 to 2009-05-22.

• forging
• flat anvil
• stretching
• numerical simulation
• transversal stress

The forging method with horizontal V-shaped anvils (HVA) is introduced to control fibrous tissue flow direction, to improve the anisotropy of mechanical properties of axial forgings. The forging method is superior to the common flat anvils (FA) forging method in inner stress states, metal tissue, overall properties and geometrical shapes of forgings. The foregoing research gave the simulation results of single blowing during stretching, and failed to pay attention to the influence of the deformation, resulting from the previous blowing, upon the next blowing. The APDL tool supplied by ANSYS software was adopted to build up the parametric model of HVA forging method, simulate the through continuous blowing for billets with rectangular crosssection. The transversal stress distribution along the central axis on the crosssection of the stretched forging is analyzed. The results show that during the stretching with horizontal V-shaped anvils, when the ratio of the flat anvil width to the billet height is 1.0 and the ratio of the billet width to the billet height is 0.5, the transversal stress is compressive all the time. The absolute value of the compressive stress increases as the stretching goes. On the contrary, according to the new theory of flat anvil stretching for rectangular crosssection billet, the stress would be tensile if flat anvils were used under the same parameters. The results indicate that horizontal V-shaped anvils prevail over the flat anvils in the transversal stress controlling. Experiments verified the results.

• 出版日期2009
• 单位广东海洋大学