Journal of Computational Applied Mechanics

Effect of the asymmetrical rolling process on the micro hardness and microstructure of brass wire

Document Type : Research Paper

Authors

1 Department of Mechanical and Aerospace Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran

2 School of Mechanical Engineering, College of Engineering, University of Tehran, Tehran, Iran

Abstract

Current experimental investigation deals with the effects of asymmetrical rolling parameters on the inhomogeneity, microstructure, mechanical, and geometrical properties of rolled brass wire. Toward this end, a roll machine with three different roll radii ratios was set up. The asymmetrical conditions are arranged using three different sets of rolls with different diameters that result into different reductions. Investigating the effects of the inhomogeneous structure of unrolled brass wire on the output radius, total width, and width of the rolled part (in the z direction) are the aim of this study. Furthermore, the influences of three unlike roll radius ratios on the grain size, inhomogeneity and mechanical properties of the rolled brass wire are considered. In addition, the micro-Vickers measurements on the rolled brass wire are performed. It is shown that the regions near to faster roll with greater strain quantities have higher values of hardness compared to the other areas.

Keywords

Main Subjects

[1]           C. B, The contact pressure distribution in flat rolling of wire, J. Mat. Proc. Technol, Vol. 73, No. 1-3, pp. 6, January, 1998.
[2]           Q. L. W He., Cryo-rolling enhanced inhomogeneous deformation and recrystallization grain growth of a zirconium alloy, J. of Alloy and Comp, Vol. 699, pp. 9, 2005.
[3]           W. S. Hao P., Formation mechanism and control Methods of inhomogeneous deformation during hot rough rolling of aluminum alloy plate, Arch. of Civ. and Mech. Eng, Vol. 18, pp. 10, 2008.
[4]           A. K. T. M. Kazeminezhad *, Deformation inhomogeneity in flattened copper wire, J. Mat. Des, Vol. 28, pp. 7, 2006.
[5]           K. T. A. Kazeminezhad M., Experimental investigation on the deformation behavior during wire flat rolling process, J. Mat. Proc. Technol, Vol. 26, pp. 4, 2005.
[6]           K. T. A. Kazeminezhad M., Experimental investigation on the deformation behavior during wire flat rolling process, J. Mat. Proc. Technol, Vol. 160, pp. 7, 2005.
[7]           P. B. Parvizi A., Abrinia K., Akbari A, Analysis of curvature and width of the contact area in asymmetrical rolling of wire, J. Manuf. Proc, Vol. 20, pp. 5, 2015.
[8]           P. B. Parvizi A., Abrinia K., Akbari A, An analytical approach to asymmetrical wire rolling process with finite element verification, Int. J. Adv. Manuf. Technol, Vol. 82, pp. 8, 2015.
[9]           A. A. Salari M., Effect of micro structural inhomogeneities on texture evolution in 90-10 Brass sheets, J. Mat. Proc. Technol, Vol. 182, No. 1-3, pp. 5, 2016.
[10]         R. S. Rohini G., Suwas S, Effect of mode of rolling on development of texture and microstructure in two-phase (α + β) brass, Mat. Sci. Eng, Vol. 527, pp. 10, 2010.
[11]         M. S. Komkova T., Korznikov A., Myshlyaev MM., Semiatin SL, Grain structure evolution during cryogenic rolling of alpha brass, J. Alloy and Comp, Vol. 629, pp. 8, 2015.
[12]         Z. X. Yan H., Jian N., Zheng Y., He T, Influence of Shear Banding on the Formation of Brass-type Textures in Polycrystalline fcc Metals with Low Stacking Fault Energy, J. of Mat. Sci. Technol, Vol. 30, No. 14, pp. 9, 2014.
[13]         J. P. Polkowski W., Polanski M., Bojar Z, Microstructure and texture evolution of copper processed by differential speed rolling with various speed asymmetry coefficient, Mat. Sci. Eng. A, Vol. 564, pp. 8, 2013.
[14]         X. R. D. Wang J.l., Wang S.H, Qian T.C, Shi Q.N, Formation mechanism and organizational controlling of ultra-fine-grain copper processed by asymmetrical accumulative rolling-bond and annealing, Trans. of Nonfer. Met. Soc. of China, Vol. 22, pp. 7, 2012.
[15]         K. A. Stepanov N.D., Salishchev G.A, Raab G.I, Influence of cold rolling on microstructure and mechanical properties of copper subjected to ECAP with various numbers of passes, Mat. Sci. and Eng. A, Vol. 554, No. 30, pp. 10, 2012.
[16]         H. M. Gu C.F., Toht L.S, Grain size dependent texture evolution in severely rolled processed of the pure copper, Mater. Charact, Vol. 101, pp. 9, 2015.
[17]         E. A. Ucuncuoglu S., Secgin G.O, Duygulu O, Effect of asymmetric rolling process on the microstructure, mechanical properties and texture of AZ31 magnesium alloys sheets produced by twin roll casting technique, J. Magnes. Alloys, Vol. 2, pp. 7, 2014.
[18]         L. S. U. Chen Y.L, Zhao M., Kual, Z. Li, Liu G.M, Effects of Rolling Parameters on Texture and Formability of High Strength Ultra-Low Carbon BH Steel, J. Iron. Steel Res. Int, Vol. 20, No. 6, pp. 7, 2013. 
Journal of Computational Applied Mechanics
Volume 49, Issue 1
June 2018
Pages 143-148
  • Receive Date: 16 November 2017
  • Revise Date: 10 January 2018
  • Accept Date: 11 January 2018