Effects of blank dimension on forming characteristics during conical-section ring rolling of Inco718 alloy

Xinglin Zhu, Dong Liu, Yanhui Yang, Yang Hu, Guowei Liu, Yuanning Wang

科研成果: 期刊稿件文章同行评审

31 引用 (Scopus)

摘要

For profile ring rolling of difficult-to-deform materials, geometry and dimensions of blank are critical for dimensional accuracy and thermomechanical parameters distribution of the formed ring. In this study, four blank design principles for conical-section ring rolling are presented based on analytical description of the volume distribution characteristic curve (VDCC), and then effects of all dimension factors of the four blanks are explored comprehensively by using 3D coupled thermomechanical FE model established based on FORGE. According to the comprehensive analysis, optimal blank design principle for conical-section ring rolling is determined. The results obtained show that: (1) Preparation stage of rolling process (PSRP) is an essential stage for slope forming without wall thickness reduction, and the essence of PSRP is the process that the metal in rolling cavity seeking for balanced pressure along axial direction. (2) Unequal slope and unequal wall thickness have obvious effects on stress distribution. (3) We can, through controlling local deformation in PSRP and shortening the time of PSRP, improve the strain and the temperature distribution.

源语言英语
页(从-至)2707-2718
页数12
期刊International Journal of Advanced Manufacturing Technology
84
9-12
DOI
出版状态已出版 - 1 6月 2016

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