Influence of Heating Models on Necking Deformation during Tube Extrusion Process
By using Deform-3D software, the necking extrusion forming processes of integer trailer axle with two different heating means which are Uniform Heating (UH) method and Partly Heating (PH) method with temperature gradient are simulated. The influence of deformation parameters such as friction factor, necking coefficient, different temperature distribution of work-piece on the material flow features, stress and strain field, loading force and deformation process are analyzed in detail. According to the numerical simulation results, using PH method with temperature gradient can improve necking deformation during tube extrusion process.
Zhengyi Jiang, Shanqing Li, Jianmin Zeng, Xiaoping Liao and Daoguo Yang
G. H. Liu et al., "Influence of Heating Models on Necking Deformation during Tube Extrusion Process", Advanced Materials Research, Vols. 189-193, pp. 1778-1781, 2011