Experimental Determination of Force and Deformation Stress in Nanostructuring Aluminum by Multiaxial Forging Method

Article Preview

Abstract:

This Paper Aims to Determine by Experiment Total Force and Stress of Deformation Depending on Punch Stroke and the Level of Deformation on Severe Plastic Deformation of Aluminum by Multiaxial Cold Forging. the Deformation Force in Multiaxial Forging Depends on a Number of Parameters of whom the most Important are: Strain, the Flow Force of Aluminum, Deformation Speed, the Friction between the Material and the Die, Shape and Size of Die, the Dimensions of Deform Profile, Shape and Dimensions of Workpiece, Temperature Variation during the Process, Physical and Mechanical Properties of the Workpiece Material, the Structural Inhomogeneity of Workpiece Material. the Deformation Process is Discontinuous and Includes Deformation Processes that Define a Cycle of Severe Plastic Deformation. this Paper Aims to Determine the Force and Stress Corresponding to the First 12 Cycles of Severe Plastic Deformation.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

137-141

Citation:

Online since:

October 2014

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2014 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

[1] R.Z. Valiev, R.K. Islamgaliev, I.V. Alexandrov, Bulk Nanostructured Materials from Severe Plastic Deformation. Progress in Materials Science. 45/2 (2000) 103–189.

DOI: 10.1016/s0079-6425(99)00007-9

Google Scholar

[2] A. Rosochowski, L. Olejnik, M. Richert, Metal Forming Technology for producing Bulk Nanostructured Metals, Steel Grips. 2 (2004) 35–44.

Google Scholar

[3] L. Zaharia, Theory of Plastic Deformation, Publisher Gh. Asachi, (2001).

Google Scholar

[4] Q. Shi, Y. Chen, J. Wang, A Study on Characteristics of Microstructures and Orientations of UFG Materials Prepared by SPD Materials Science Forum, 2011, pp.667-669.

DOI: 10.4028/www.scientific.net/msf.667-669.343

Google Scholar

[5] I. Popa, Multifunctional Advanced Superfine/nano - Grained Materials Obtained by Severe Plastic Deformation, Brasov, (2013).

Google Scholar

[5] J. Osmer, E. Brinksmeier, A. Rosochowski, L. Olejnik, M. Richert, Diamond Turning of Ultrafine Grained Aluminium Alloys. Proceedings of 7th Euespen International Conference, Bremen, May 20–24, 2, 2007, p.316–319.

Google Scholar

[6] R. Comaneci, R. Chelariu, L. Zaharia, Obtaining Nanostructured Materials by Severe Plastic Deformation, (2006).

Google Scholar

[7] S.V. Dobatkin, E.N. Bastarache, G. Sakai, T. Fujita, Z. Horita, T.G. Langdon, Grain Refinement and Superplastic Flow in an Aluminum Alloy Processed by High-pressure Torsion, Materials Science and Engineering A 408(1–2) (2005) 141–146.

DOI: 10.1016/j.msea.2005.07.023

Google Scholar

[8] C. Bejinariu, Indirect Cold Extrusion of Steels, Second Edition Revised and Enlarged, Publisher Tehnopress, Iasi, (2008).

Google Scholar