Influence of reduction distribution on internal defects during crosswedge-rolling process

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Abstract

The cross wedge rolling, which is a complex process combined with rolling and forging, is widely applied to produce stepped shaft in forging industry. Center defects during cross wedge rolling process is a disadvantage should be avoided. In this study, the influence of the model-parameters and the division of area reduction (cross section reduced ratio) on the internal defects has been researched during cross wedge rolling process with large deformation, and reasonable method of deformation distribution and parameter selection is developed and applied in production of two kinds of shafts. As a result, if the deformation can be achieved during once rolling, to divide once deformation into twice should be avoided. In the case of the deformation with twice stages, increase the reduction of the first stage is benefit to avoid interior failure.

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Liu, G., Zhong, Z., & Shen, Z. (2014). Influence of reduction distribution on internal defects during crosswedge-rolling process. In Procedia Engineering (Vol. 81, pp. 263–267). Elsevier Ltd. https://doi.org/10.1016/j.proeng.2014.09.161

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