Investigation and optimization of factors affecting the strain distribution in the CGP process on A grade copper Sheet
Publish place: 3rd International Conference on Electrical Engineering, Mechanical Engineering, Computer Science and Engineering
Publish Year: 1398
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
EMECCONF03_006
تاریخ نمایه سازی: 7 مهر 1398
Abstract:
The constrained groove pressing process, with the microstructure of sizes from micron to Nano, results in the production of higher-strength sheets. For numerical evaluation of this process, DEFROM software has been used and to optimize the results, the experimental design of Taguchi method with three factors and three levels was used as an array of L9. Copper sheet with Grade A was carried out by constrained groove pressing process during two passes at room temperature with a shear friction coefficient of 1.0 and a pivot speed of 0.1, 1 and 10 mm.s-1 under severe plastic deformation. The numerical results obtained from empirical experiments were validated on a sample. The parameters studied in this research include the effect of severe plastic deformation on mechanical properties, force variations and finally the optimization of three factors of pivot movement speed, tooth angle of die and initial temperature of the sheet based on effective parameters. Because of cracking and reducing the plasticity of the sample, limiting the number of passes per sheet is possible. The results of optimization of the three effective factors on the degree of damage, the highest distribution of effective strain in the copper specimen and the required force for performing the process for the two pass process were evaluated
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Authors
Mohammad Reza Maraki
Lecturer, Birjand University of Technology, Birjand, Iran
Hamoun Khatami
Department of Mechanics, Urmia University, Urmia, Iran
Amir Rafiee
Department of Mechanics, Urmia University, Urmia, Iran
Ramin Karami
Department of Mechanics, Urmia University, Urmia, Iran
Hadi Tagimalek
Department of Mechanics, Urmia University, Urmia, Iran