Transactions of Materials and Heat Treatment

Title：Influence laws of reaming deformation modes on forming of cylindrical parts

Authors： Wang Jinliang1 Wen Huihua1 He Wenwu1 2 Chen Huiqin1 2

Unit： 1.School of Materials Science and Engineering Taiy uan University of Science and Technology 2.Shanxi Heavy Casting and Forging Engineering Technology Research Centre

KeyWords： cylindrical parts ring forging hot ring rolling wall thickness forging ratio deformation modes

ClassificationCode：

year,vol(issue):pagenumber：2022,47(3):1-7

Abstract：

The ring forging process and the hot ring rolling process in the free forging of a cylindrical part were simulated by the numerical simulation method, and the influences of the two deformation modes on the forming laws of the cylindrical part were analyzed. The research results show that under the condition of the same wall thickness forging ratio, the equivalent strain in the cross section of the cylindrical part formed by ring forging with the local loading intermittent deformation mode is periodically distributed along the circumferential direction, and its value gradually decreases from inner to outer along the radial direction. However, the equivalent strain in the cross section of the cylindrical part formed by hot ring rolling with the local loading continuous deformation mode is uniformly distributed along the circumferential direction, and its value is the highest at the outer diameter, second at the inner diameter, and the lowest at the center of wall thickness. By comparison, it is found that the equivalent strain values at the center of wall thickness are comparable in the two deformation modes, and the equivalent strain at the center of wall thickness formed by hot ring rolling is slightly larger. Combined with the experimental results of hot ring rolling, the results show that the hot ring rolling process can replace the ring forging process under the condition of the same wall thickness forging ratio to form cylindrical ports, and the cylindrical parts with uniform deformation can be obtained under the premise that the ring blanks are fully forged.

Funds：

国家自然科学基金资助项目(51575372)

王金亮（1987-），男，博士研究生 E-mail：wang_jinliang55@163.com 通信作者：陈慧琴（1968-），女，博士，教授 E-mail：chenhuiqin@tyust.edu.cn

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