Research on an analytical method for the forming force of external spline cold roll-beating
ID Ma, Qun (Author), ID Zhang, Xiangwei (Author)

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Abstract
To determine the force and energy parameters of cold roll-beating of external splines, the characteristics of the deformation zone in cold roll-beating are analysed. The geometric dimensions and position of the deformation zone change with the movement of the roller, the contact arc, and the reduction are very small, and there is an incomplete deformation zone in the initial stage of cold roll-beating. A discrete analytical method for calculating the unit pressure and deformation force is proposed, and the cold roll-beating process is discretized into an infinite number of cold-rolling processes with complex sections. The discrete analytical model of unit pressure and deformation force is established, and the unit pressure value and its distribution characteristics are determined. To verify the discrete analytical model, a finite element model of cold roll-beating is established, and the forming force is calculated. A horizontal milling machine is modified to carry out the cold roll-beating experiment, and the forming force is measured. The predicted results of the discrete analytical model are compared with the simulation and experiment results. The results show that the maximum error of radial force compared with the simulation and experiment results is about 7 % and 4 % respectively, and the variation curve of radial force is basically consistent, but the time of a cold roll-beating process is slightly shorter. The discrete analytical model correctly predicts the magnitude and change process of cold roll-beating forming force.

Language: English discrete analytical method, cold roll-beating, forming force, deformation zone, radial force Article 1.01 - Original Scientific Article FS - Faculty of Mechanical Engineering Published Version of Record 2023 13 str. Vol. 69, no. 9/10 20.500.12556/RUL-151863 621.77 0039-2480 10.5545/sv-jme.2023.616 168723715 23.10.2023 387 21 Copy citation

## Record is a part of a journal

Title: Strojniški vestnik Stroj. vestn. Zveza strojnih inženirjev in tehnikov Slovenije [etc.], = Association of Mechanical Engineers and Technicians of Slovenia [etc. 0039-2480 762116

## Licences

License: CC BY 4.0, Creative Commons Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

## Secondary language

Language: Slovenian Raziskava analitične metode za določitev sil pri hladnem tolkalnem valjanju večutornih gredi diskretna analitična metoda, hladno tolkalno valjanje, preoblikovalna sila, deformacijska cona, radialna sila

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