Volume 22, Issue 12 (December 2022)
Modares Mechanical Engineering 2022, 22(12): 737-745 |
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kiani P, Ghoreishi M, Jalali Aghchai A. Estimation of Necessary Force for Isothermal Forging of Disc Piece of Aluminum Alloy 7075 by Slip Line Field Method. Modares Mechanical Engineering 2022; 22 (12) :737-745
URL: http://mme.modares.ac.ir/article-15-61563-en.html
URL: http://mme.modares.ac.ir/article-15-61563-en.html
1- Faculty of Mechanical Engineering K.N. Toosi University of Technology , p.kiani.2014.pk@gmail.com
2- Faculty of Mechanical Engineering of K.N. Toosi University of Technology
3- Faculty of Mechanical Engineering K.N. Toosi University of Technology
2- Faculty of Mechanical Engineering of K.N. Toosi University of Technology
3- Faculty of Mechanical Engineering K.N. Toosi University of Technology
Abstract: (1450 Views)
In this Study, the necessary force of the isothermal forging process of disc piece of aluminum alloy AA7075 was analyzed and calculated by theoretical methods and finite elements method. In the simulation of the isothermal forging process in Deform software, were selected the temperature of 400 °C, the speed of top mold of 0.1 mm/s and the shear friction coefficient of 0.075 as process parameters. The necessary force of isothermal forging was obtained 80 tons in 6.18 mm Motion Course for disc piece by analyzing the simulation results of finite element method in DEFORM software. The axisymmetric slip line field method was used to estimate the forming force of the isothermal forging of the closed die before of the flash filling, which obtained 23.54 tons. The comparison forming force of isothermal forging of disc piece by theory method with the results obtained from finite element simulation showed that the forming force corresponds very well with the force-displacement diagram is compatible. The geometry of billet, the final top and bottom dies and assembly drawing of isothermal forging process of disc piece of aluminum 7075 dies were calculated by assuming a constant volume in plastic deformation.
Keywords: Isothermal Forging, Slip line field method, disc piece of Aluminum Alloy 7075, Finite Element.
Article Type: Original Research |
Subject:
Metal Forming
Received: 2022/05/17 | Accepted: 2022/08/15 | Published: 2022/12/1
Received: 2022/05/17 | Accepted: 2022/08/15 | Published: 2022/12/1
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