Correlation of Barreling Effect with Boundary Friction Coefficient during Upsetting of Various Materials Workpieces under Processing Conditions

Abstract:

The necessity of taking into account the barreling effect at the design of die cavities, and open die and closed die forging processes on the basis of pre-forming of billets by upsetting is shown. The division of ideas about the indices of “bulk” and “linear” barreling (barrel shape), which is determined by the ratio of the bulk and linear dimensions of the workpiece after upsetting by flat dies, was made. The functional relation (correlation) between these indices and the friction coefficient on the boundary surface between flat dies and the upsetted workpiece has been determined. The qualitative and quantitative effect of workpiece dimensions (diameter-to-height ratio), strain range, temperature (conditions of cold and hot processing) and type of forming material (structural carbon steel, some of Cu-grades and Al-grades) on the barreling effect and friction coefficient during upsetting was found. The developed method makes it possible to predict a change in the friction coefficient during the upsetting of various material workpiece under given conditions of forming and to monitor their effect to the final shape.

• Periodical: Materials Science Forum (Volume 992)
• Pages: 751-756
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.992.751
• Online since: May 2020
• Authors: Volodymyr V. Kukhar*, Eduard S. Klimov, S.M. Chernenko, E.Yu. Balalayeva
• Keywords: Barreling Effect, Boundary Friction Coefficient, Cold Processing Conditions, Flat Dies, Hot Processing Conditions, Upsetting, Workpiece

References

[1] Ya.M. Okhrimenko, V.A. Tyurin, Teoriya protsessov kovki (Theory of Forging Processes), Vyisshaya shkola (Higher School), Moscow, 1977, 295 p.

[2] K.M. Kulkarni, S. Kalpakjian, A Study of Barreling as an Example of Free Strains in Plastic Working, Journal of Engineering for Industry. 91(3) (1969) 743-754.

DOI: 10.1115/1.3591680

[3] I.G. Zhbankov, O.E. Markov, A.V. Perig, Rational parameters of profiled workpieces for an upsetting process, Int. J. Adv. Manuf. Technol. 72(5-8) (2014) 865-872.

DOI: 10.1007/s00170-014-5727-5

[4] V.G. Efremenko, K. Shimizu, T.V. Pastukhova, Yu.G. Chabak, K. Kusumoto, A.V. Efremenko, Effect of bulk heat treatment and plasma surface hardening on the microstructure and erosion wear resistance of complex-alloyed cast irons with spheroidal vanadium carbides, Journal of Friction and Wear. 38(1) (2017) 58-64.

DOI: 10.3103/s1068366617010056

[5] V. Kukhar, V. Artiukh, A. Prysiazhnyi, A. Pustovgar, Experimental Research and Method for Calculation of Upsetting-with-Buckling, Load at the Impression-Free (Dieless) Preforming of Workpiece, E3S Web Conf. 33 (2018) 02031.

DOI: 10.1051/e3sconf/20183302031

[6] V. Kukhar, A. Prysiazhnyi, E. Balalayeva, O. Anishchenko, Designing of induction heaters for the edges of pre-rolled wide ultrafine sheets and strips correlated with the chilling end-effect, International Conference on Modern Electrical and Energy Systems (MEES), Kremenchuk, IEEE, 2017, pp.404-407.

DOI: 10.1109/mees.2017.8248945

[7] V. Kukhar, N. Yelistratova, V. Burko,  Y. Nizhelska, O. Aksionova, Estimation of occupational safety risks at energetic sector of Iron and Steel Works, International Journal of Engineering & Technology. 7(2.23) (2018) 216-220.

DOI: 10.14419/ijet.v7i2.23.11922

[8] C.S. Çetinarslan, Effect of aspect ratio on barreling contour and variation of total surface area during upsetting of cylindrical specimen, Materials & Design. 28(6) (2007) 1907-1913.

DOI: 10.1016/j.matdes.2006.03.027

[9] R. Raja, S. Lakshminarasimhan, P. Murugesan, Investigation of Barreling Radius and Top Surface Area for Cold Upsetting of Aluminum Specimens, International Journal of Modern Engineering Research. 3(6) (2013) 3852-3862.

[10] P. Sharma, M.S. Khidiya, M.A. Saloda, B.P. Nandwana, Effect of Barrel Radius on the Billet in the Upsetting Process, Recent Trends in Fluid Mechanics. 3(3) (2016) 23-30.

[11] H. Mohammadi Majd, M. Jalali Azizpour, A Study on Barreling Behavior during Upsetting Process using Artificial Neural Networks with Levenberg Algorithm, International Scholarly and Scientific Research & Innovation. 5(6) (2011) 841-844.

[12] A. Priyadarshini, C.P. Kiran, K. Suresh, Effect of Friction on Barreling during Сold Upset Forging of Aluminium 6082 Alloy Solid Cylinders, IOP Conf. Series: Materials Science and Engineering. 330 (2018) 012072.

DOI: 10.1088/1757-899x/330/1/012072

[13] Z. Yao, D. Mei, H. Shen, Z. Chen, A Friction Evaluation Method Based on Barrel Compression Test, Tribology Letters. 51 (2013) 525-535.

DOI: 10.1007/s11249-013-0164-4

[14] A.A. Tseng, J. Horsky, M. Raudensky, P. Kotrbacek, Strains behavior of steels in mushy state, Materials and Design. 22 (2001) 83-92.

[15] Y. Li, E. Onodera, A. Chiba, Friction Coefficient in Hot Compression of Cylindrical Sample, Materials Transactions. 51(7) (2010) 1210-1215.

DOI: 10.2320/matertrans.m2010056

[16] P. Christiansen, P.A.F. Martins, N.O. Bay, Friction Compensation in the Upsetting of Cylindrical Test Specimens, Experimental Mechanics. 56(7) (2016) 1271-1279.

DOI: 10.1007/s11340-016-0164-z

[17] J. Schey, Metal Strains Processes: Friction and Lubrication, Monographs and Textbooks in Material Science, Marcel Dekker Inc, New York, 1970, 821 p.

[18] A.P. Grudev, Yu.V. Zilberg, V.T. Tilik, Trenie i smazki pri obrabotke metallov davleniem (Friction and lubricants in metal forming), Spravochnik (Handbook), Metallurgiya (Metallurgy), Moscow, 1982, 310 p.

[19] S.I. Gubkin, Teoriya obrabotki metallov davleniem (Theory of metal forming), Me-tallurgizdat, Moscow, 1947, 342 p.

[20] V. Artiukh, V. Kukhar, E. Balalayeva, Refinement issue of displaced volume at upsetting of cylindrical workpiece by radial dies, MATEC Web of Conferences. 224 (2018) 01036.

DOI: 10.1051/matecconf/201822401036

[21] A.K. Kaviti, R. Mehra, K.K. Pathak, Measurement of top and bottom unequal frictional values using profile map, Materials Today: Proceedings. 5 (2018) 27285-27290.

DOI: 10.1016/j.matpr.2018.09.045

[22] E. Rajesh, M.S. Prakash, Analysis of friction factor by employing the ring compression test under different lubricants, International Journal of Scientific & Engineering Research. 4(5) (2013) 1163-1170.