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Research on the effects of geometric parameters of ring blank on cold profiled ring rolling process

Author:
Li, Lanyun  Li, Xiao  He, Zhi  


Journal:
INTERNATIONAL JOURNAL OF MATERIALS & PRODUCT TECHNOLOGY


Issue Date:
2011


Abstract(summary):

Cold profiled ring rolling is an advanced but complex metal forming process under coupled effects with multi-factors, such as geometric parameters of ring blank and rolls, forming process parameters, material properties, friction, etc. Among these factors, the geometric parameters of ring blank play significant roles because they directly affect the dimensional accuracy and internal quality of deformed ring. In this paper, through numerical simulation for typical cold profiled ring rolling process (cold T-shaped ring rolling) based on dynamic elastic-plastic 3D-FEM under ABAQUS/explicit environment, the effects of three geometric parameters of ring blank (average radius, radial thickness and axial width) on filling behaviour, diameter expansion and forming quality around the groove entrance have been investigated. It can be found that, 1 increasing the average radius benefits the ring diameter expansion and filling behaviour, but worsens the forming quality of groove entry 2 increasing the radial thickness is harmful to the diameter expansion, filling behaviour and the forming quality of groove entry 3 increasing the axial width benefits the filling behaviour, but does harm to the diameter expansion and the forming quality of groove entry. These achievements provide an important basis for design and optimisation of ring blank dimensions in cold profiled ring rolling process.


Page:
195---208


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