Abstract
The friction forces developed between the work-piece and the forming tools are of important consideration in metalworking. In many metalworking processes friction is the pre-dominant factor. This project has been taken up to experimentally study the effect of barreling of aluminium solid cylinders during cold upsetting by introducing different lubricants at one end of the solid cylinder. Experiments were conducted for three aspect ratios. The radius of curvature of bulge measured was found to conform to the calculated one using experimental data. The calculations are made with the assumption that the curvature of the bulge followed the form of a circular arc. A relationship was established between the various bulge parameters like new hoop strain, geometrical shape factor(1) geometrical shape factor(2) and stress ratio parameter.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Johnson W, Mellor PB (1975) Engineering plasticity. Van Nostrand, London, ch 6, pp 110–114
Shaw C, Avery JP (1980) Forming limits – reliability, stress analysis and failure prevention methods in mechanical design. Century, Chicago, IL, ASME, pp 297–303
Kulkarni M, Kalpakjian S (1969) A study of barreling as an example of free deformation. ASME J Eng Ind 91:743–754
Schey A, Venner TR, Takomana SL (1982) Shape changes in the upsetting of slender cylinders. ASME J Eng Ind 104:79–83
Sowerby R, O’Reilly I, Chandrasekaran N, Dung NL (1984) Materials testing for cold forging. ASME J Eng Mater Tech 106:101–106
Banerjee Barreling of solid cylinders under axial compression. ASME J Eng Mater Tech 107:138–144
Narayanasamy, Murthy RSN, Viswanatham K, Chary GR, Prediction of the barreling of solid cylinders under axial compressive load. J Mech Work Tech 16:21–30
Yang Y, Choi Y, Kim JH (1991) Analysis of upset forging of cylindrical billets considering the dissimilar frictional conditions at two flat die surfaces. Int J Mach Tools Manuf 31:397–404
Gokler MI, Darendeliler H, Elmaskay NE (1999) Analysis of tapered preforms in cold upsetting. Int J Mach Tools Manuf 39:1–16
Chen, Chen CJ (2000) On the non uniform deformation of the cylinder compression test. J Eng Mater Tech Trans ASME 122:192–197
Narayanasamy R, Pandey KS (1997) Phenomenon of barreling in Al solid cylinders during cold upset-forging. J Mater Proc Tech 70:17–27
Malayappan S, Narayanasamy R (2003) Some aspects of barreling in aluminium solid cylinders during cold upset forging using die with a constraint. J Mater Process Technol 135:18–29
Malayappan S, Narayanasamy R (2003) Barreling of aluminium solid cylinders during cold upset forging with constraint at one end. J Mater Sci Technol 19:507–511
Malayappan S, Narayanasamy R (2004) An experimental analysis of upset forging of aluminium cylindrical billets considering the dissimilar frictional conditions at flat die surfaces. Int J Adv Manuf Sci Technol, vol 23, pp636–643
Malayappan S, Narayanasamy R (in press) Effect of barrelling of aluminium solid cylinders by introducing an extrusion die at one end of the specimen. J Mater Des, available online
Malayappan S, R.Narayanasamy R (in press) Barrelling of aluminium solid cylinders by introducing die constraints at both ends of the specimen. J Mater Des, available online
Malayappan S, Narayanasamy R (2003) Observations of barrelling in aluminium solid cylinders during cold upsetting using different lubricants. J Mater Sci Technol 19:1705–1708
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Malayappan, S., Esakkimuthu, G. Barrelling of aluminium solid cylinders during cold upsetting with differential frictional conditions at the faces. Int J Adv Manuf Technol 29, 41–48 (2006). https://doi.org/10.1007/s00170-005-2503-6
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00170-005-2503-6