Abstract
The aim of this study is to suggest the die design method for single-profile ring rolling in the production of a large scale welding neck flange, based on the modified uniform volume distribution element technique (UVDET). UVDET is presented as the ratio of volume change of ring blanks to that of undeformed rings per unit height. A welding neck flange has only one–side contour without a symmetry plane and the highly different volume distribution. To manufacture this type of ring, the blank preforming is recommended before a single–stage profile ring rolling process. FE simulations were performed to test the validity of proposed die design method, under Forge software environment.
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