Effect of deformation routes on torsion behavior via ACDR process

Zheng, Yusheng; Liu, Dong; Qiu, Shaoyu; Wang, Shizhong; Wei, Lianfeng; Wang, Zeming; Tian, Darong

doi:10.1007/s00170-019-04130-1

Cited by 4 publications

(1 citation statement)

References 22 publications

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“…Based on G.liu's study, Xinghui Han and Lin Hua [11][12][13][14][15] established 3D elastoplastic finite element model to study the forming characteristics of discs and rings, in order to further improve the accuracy of the 3D elastoplastic finite element model, they revised the friction coefficient [16], and studied the contact pressure, slip distance and mold wear [17][18][19][20][21], which significantly promote the reliability of FEM for forging application. Apart from these studies focus on the cold rotary forging process, Paranjayee Mandal and Yong Zheng [22][23][24][25][26] studied the hot rotary forging by investigating the forming characteristics of flanges and discs, which is more favorable for less deformable materials.…”

Section: Introductionmentioning

confidence: 99%

Forming characteristics and mechanism of double-roll rotary forging for large-diameter and thin-walled metal discs

Zhu

Chen

et al. 2022

Int J Adv Manuf Technol

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Double-roll rotary forging is an emerging plastic forming technology based on rotary forging. Owing to the advantages of labor saving, small eccentric load, low noise and vibration, good uniformity, high surface quality and material saving, it is very promising for fabrication of large-diameter thin-walled disc. To date, few relevant research on the double-roll rotary forging technology of large-diameter thin-walled metal discs has been reported, and the forming mechanisms and process of disc workpieces remains uninvestigated. Herein, a 3D rigid-plastic finite element model (FEM) is established to simulate the fabrication process of large-diameter thin-walled disc, four geometric features appear in the forming process: "mushroom" shape, "upper drum" shape, "drum shape" shape and "lower drum" shape. Equivalent stress, equivalent strain and temperature field of these four geometric shapes are analyzed, and the forming mechanism of these four geometric shapes is revealed. The reliability and accuracy of FEM are verified through experiments and the four geometric shape features occur in the process are consistent with the simulation. The research results provide valuable guidelines for better understanding of double-roll rotary forging for the fabrication of large-diameter thin-walled discs.

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