Abstract
Considering the fact that the most of the human equipment developed by forming processes, one of the methods of producing these materials is through the metal forming process. In Industrial process, prediction of the final dimension of the part after unloading is an essential problem. Thickness distribution is the geometric change made to a part at the end of the forming process when the part has been released from the forces of the forming tool. In this study, the effects of grain size and sheet thickness on the formability of annealed copper sheets in the deep drawing process were studied. To this end, the effect of friction coefficient was evaluated for a total of 64 different cases by the finite element method (FEM). The effect of optimal parameters and grain size on the maximum deep drawing height (DDH) and thickness distribution of the square part was investigated. According to the literature review, punch and die radii uses were spotted. Based on the simulation software, the best thickness distribution was obtained in no-friction force between tools. According to the experimental results, as the grain size increased from 33 to 161 μm and from 25 to 158 μm, the thickness of wall and bottom specimens was increased, and the corner was decreased.
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Abbreviations
- C:
-
Clearance
- d:
-
Grain size
- Rd :
-
Die radius
- Rdc :
-
Die corner radius
- RPb :
-
Punch bottom radius
- RPc :
-
Punch corner radius
- Sb :
-
Blank size
- Sb :
-
Punch size
- t:
-
Thickness
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Ali Adelkhani graduated in Mechanical Engineering (B.Sc.) from Bu Ali Sina University, then in the same major (M.Sc.) from Tehran University, and Ph.D. from Science and Research University.
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Adelkhani, A. Experimental and numerical investigation of effects of sheet thickness and grain size on deep drawing of square parts. J Mech Sci Technol 35, 5143–5149 (2021). https://doi.org/10.1007/s12206-021-1031-0
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DOI: https://doi.org/10.1007/s12206-021-1031-0