Hostname: page-component-586b7cd67f-gb8f7 Total loading time: 0 Render date: 2024-11-23T02:11:48.220Z Has data issue: false hasContentIssue false
  • English
  • Français

Incipient straining in severe plastic deformation methods

Published online by Cambridge University Press:  04 March 2014

Fei Du ,
Shwetabh Yadav ,
Cesar Moreno ,
Tejas Gorur Murthy  and
Christopher Saldana
Fei Du*
Affiliation:
Harold and Inge Marcus Department of Industrial and Manufacturing Engineering, University Park, Pennsylvania 16802
Shwetabh Yadav
Affiliation:
Department of Civil Engineering, Indian Institute of Science, Bangalore, India 560012
Cesar Moreno
Affiliation:
Harold and Inge Marcus Department of Industrial and Manufacturing Engineering, University Park, Pennsylvania 16802
Tejas Gorur Murthy
Affiliation:
Department of Civil Engineering, Indian Institute of Science, Bangalore, India 560012
Christopher Saldana*
Affiliation:
Harold and Inge Marcus Department of Industrial and Manufacturing Engineering, University Park, Pennsylvania 16802
*
a)Address all correspondence to this author. e-mail: csaldana@psu.edu
Get access

Abstract

Knowledge of the plasticity associated with the incipient stage of chip formation is useful toward developing an understanding of the deformation field underlying severe plastic deformation processes. The transition from a transient state of straining to a steady state was investigated in plane strain machining of a model material system—copper. Characterization of the evolution to a steady-state deformation field was made by image correlation, hardness mapping, load analysis, and microstructure characterization. Empirical relationships relating the deformation heterogeneity and the process parameters were found and explained by the corresponding effects on shear plane geometry. The results are potentially useful to facilitate a framework for process design of large strain deformation configurations, wherein transient deformation fields prevail. These implications are considered in the present study to quantify the efficiency of processing methods for bulk ultrafine-grained metals by large strain extrusion machining and equal channel angular pressing.

Keywords

machiningextrusioncold working
Type
Articles
Information
Journal of Materials Research , Volume 29 , Issue 5 , 14 March 2014 , pp. 718 - 728
Copyright
Copyright © Materials Research Society 2014 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Langdon, T.G. and Valiev, R.Z.: Principles of equal-channel angular pressing as a processing tool for grain refinement. Prog. Mater. Sci. 51, 881 (2006).Google Scholar
Brown, T.L., Saldana, C., Murthy, T.G., Mann, J.B., Guo, Y., Allard, L., King, A.H., Compton, W.D., Trumble, K.P., and Chandrasekar, S.: A study of the interactive effects of strain, strain rate and temperature in severe plastic deformation of copper. Acta Mater. 57, 5491 (2009).CrossRefGoogle Scholar
Kim, H.S.: On the effect of acute angles on deformation homogeneity in equal channel angular pressing. Mater. Sci. Eng., A 430, 346 (2006).Google Scholar
Moscoso, W.: Severe plastic deformation and nanostructured materials by large strain extrusion machining. Ph.D. Dissertation, Purdue University, West Lafayette, IN, 2008.Google Scholar
Segal, V.M.: Materials processing by simple shear. Mater. Sci. Eng., A 197, 157 (1995).CrossRefGoogle Scholar
Sevier, M., Yang, H.T.Y., Moscoso, W., and Chandrasekar, S.: Analysis of severe plastic deformation by large strain extrusion machining. Metall. Mater. Trans. A 39, 2645 (2008).CrossRefGoogle Scholar
Saldana, C., King, A.H., and Chandrasekar, S.: Thermal stability and strength of deformation microstructures in pure copper. Acta Mater. 60, 4107 (2012).CrossRefGoogle Scholar
Stoica, G.M., Fielden, D.E., McDaniels, R., Liu, Y., Huang, B., Liaw, P.K., Xu, C., and Langdon, T.G.: An analysis of the shear zone for metals deformed by equal-channel angular processing. Mater. Sci. Eng., A 411, 239 (2005).Google Scholar
Jung, J., Yoon, S.C., Jun, H.J., and Kim, H.S.: Finite element analysis of deformation homogeneity during continuous and batch type equal channel angular pressing. J. Mater. Eng. Perform. 22, 3222 (2013).Google Scholar
Yoon, E.Y., Yoo, J.H., Yoon, S.C., Kim, Y.Y., Baik, S.C., and Kim, H.S.: Analyses of route Bc equal channel angular pressing and post-equal channel angular pressing behavior by the finite element method. J. Mater. Sci. 45, 4682 (2010).Google Scholar
Wei, W., Nagasekhar, A.V., Chen, G., Tick-Hon, Y., and Wei, K.X.: Origin of inhomogenous behavior during equal channel angular pressing. Scr. Mater. 54, 1865 (2006).CrossRefGoogle Scholar
Djavanroodi, F. and Ebrahimi, M.: Effect of die channel angle, friction and back pressure in the equal channel angular pressing using 3D finite element simulation. Mater. Sci. Eng., A 527, 1230 (2010).CrossRefGoogle Scholar
Li, S., Bourke, M.A.M., Beyerlein, I.J., Alexander, D.J., and Clausen, B.: Finite element analysis of the plastic deformation zone and working load in equal channel angular extrusion. Mater. Sci. Eng., A 382, 217 (2004).CrossRefGoogle Scholar
Basavaraj, V.P., Chakkingal, U., and Kumar, T.S.P.: Study of channel angle influence on material flow and strain inhomogeneity in equal channel angular pressing using 3D finite element simulation. J. Mater. Process. Technol. 209, 89 (2009).CrossRefGoogle Scholar
Rosochowski, A., Olejnik, L., and Richert, M.: 3D ECAP square aluminum billets. In Advanced Methods in Material Forming (Springer, Berlin, Heidelberg, 2007).Google Scholar
Figueiredo, R.B., Costa, A.L., Andrade, M.S., Aguilar, M.T., and Cetlin, P.R.: Microstructure and mechanical properties of Pb-4% Sb alloy processed by equal channel angular pressing. Mater. Res. 9, 101 (2006).CrossRefGoogle Scholar
Field, D.P., Bradford, L.T., Nowell, M.M., and Lillo, T.M.: The role of annealing twins during recrystallization of Cu. Acta Mater. 55, 4233 (2007).Google Scholar
Moscoso, W., Shankar, M.R., Mann, J.B., Compton, W.D., and Chandrasekar, S.: Bulk nanostructured materials by large strain extrusion machining. J. Mater. Res. 22, 201 (2007).Google Scholar
Madhavan, V., Chandrasekar, S., and Farris, T.N.: Machining as a wedge indentation. J. Appl. Mech. 6, 128 (1998).Google Scholar
Weinmann, K.J. and Von Turkovich, B.F.: Mechanics of tool workpiece engagement and incipient deformation in machining of 70/30 brass. J. Eng. Ind. Trans. ASME 93, 1079 (1971).Google Scholar
Klamecki, B.E.: Incipient chip formation in metal cutting: A three-dimension finite element analysis. Ph.D. Dissertation, University of Illinois, 1973.Google Scholar
Ko, D., Ko, S., and Kim, B.: Rigid-thermoviscoplastic finite element simulation of non-steady-state orthogonal cutting. J. Mater. Process. Technol. 131, 345 (2002).Google Scholar
Lo, S.: An analysis of cutting under different rake angles using the finite element method. J. Mater. Process. Technol. 105, 143 (1999).Google Scholar
Okushima, K. and Hitomi, K.: Transitional phenomenon in metal cutting. Int. J. Prod. Res. 10, 234 (1972).CrossRefGoogle Scholar
Oguri, M., Fujii, H., Yamaguchi, K., and Kato, S.: On transient cutting mechanics at the initial stage of peripheral milling process. Bull. JSME 19, 61 (1976).Google Scholar
Shaw, M.C.: Metal Cutting Principles (Oxford University Press, New York, 1984).Google Scholar
Adrian, R.J. and Westerweel, J.: Particle Image Velocimetry (Cambridge University Press, New York, 2011).Google Scholar
Calistes, R., Swaminathan, S., Murthy, T.G., Huang, C., Saldana, C., Shankar, M.R., and Chandrasekar, S.: Controlling gradation of surface strains and nanostructuring by large-strain machining. Scr. Mater. 60, 17 (2009).Google Scholar
Lee, S., Hwang, J., Shankar, M.R., Chandrasekar, S., and Compton, W.D.: Large strain deformation field in machining. Metall. Mater. Trans. A 37, 1633 (2006).CrossRefGoogle Scholar
Guo, Y., Saldana, C., Compton, W.D., and Chandrasekar, S.: Controlling deformation and microstructure on machined surfaces. Acta Mater. 59, 4538 (2011).CrossRefGoogle Scholar
Sonmez, F.O. and Demir, A.: Analytical relations between hardness and strain for cold formed parts. J. Mater. Process. Technol. 186, 163 (2007).CrossRefGoogle Scholar
Chaudhri, M.M.: Subsurface strain distribution around Vickers hardness indentations in annealed polycrystalline copper. Acta Mater. 46, 3047 (1998).CrossRefGoogle Scholar
Hanemann, H. and Schrader, A.: Atlas Metallographicus (Gebruder Borntraeger, Berlin, Germany, 1927), pp. 760.Google Scholar
Rosa, P.A.R., Kolednik, O., Martins, P.A.F., and Atkins, A.G.: The transient beginning to machining and the transition to steady-state cutting. Int. J. Mater. Manuf. 47, 1904 (2007).Google Scholar
Potdar, Y.K. and Zehnder, A.T.: Measurements and simulations of temperature and deformation fields in transient metal cutting. J. Manuf. Sci. Eng. 125, 645 (2003).Google Scholar