Authors:
Navdeep,Parveen Kumar,R. K. Ranjan,K. D. Sharma,DOI NO:
https://doi.org/10.26782/jmcms.spl.12/2025.08.00008Keywords:
Sinter forging,Upper bound,Die Load,Dynamical effect,sticking and sliding friction,Abstract
This study investigates the influence of die velocity in sinter forging, particularly focusing on plastic deformation characteristics in the cold forging of axially symmetric components. Key factors such as material flow, inertia energy dissipation, and die load are examined. Results show that both energy dissipation and die load increase with higher die speeds. Utilizing an upper-bound approach with a simplified velocity field, theoretical results for the average die load are established. This analysis aims to improve the understanding of dynamic effects in sinter-forging cylindrical preforms, offering valuable insights for future research in this domain. Additionally, this paper provides a comprehensive review of the role of friction in metal forming processes, emphasizing the development of theoretical models to analyze tool-workpiece interfaces under varying friction conditions using the upper-bound method. The importance of understanding friction, particularly in forging processes, is highlighted. A composite friction mechanism in axisymmetric forging is introduced, accounting for the effect of platen speed. The significance of friction conditions on key factors such as applied load and plastic deformation is underscored, particularly considering the crucial interaction between adhesion and sliding.Refference:
I. Agrawal M., Jha A. K., Kumar S., “High-speed forging of hollow metal powder preforms”, Inst. Engrs. (I) J., 80 (1999),8.
II. Avitzur B., “Metal Forming Processes and Analysis”, McGraw Hill, New York, 1968.
III. Cost savings win the day for PM parts, Metal Powder Report, Vol. 56, Issue 7-8, (2001), 10-14.
IV. Jain Shrikant, Ranjan R. K. and Kumar Surender, “Fracturing and Deformation Characteristics of Aluminium Preform during Cold Forging at Low Strain Rates”. Int. J. of Scientific Engineering and Technology, 4(3) (2015),182-186. 10.17950/ijset/v4s3/314
V. Jha A. K and Kumar S., “Analysis of Axisymmetric Cold Processing of Metal Powder Preforms”, Journal of the Institution of Engineers (India), 65, (1985), 169.
VI. Jha A. K. and Kumar S., “Compatibility of sintered materials during cold forging”, International Journal of Materials and Product Technology, Vol. 9, Issue 4-6, (1994), 281-299. 10.1504/IJMPT.1994.036423
VII. Jha A. K., Kumar S., “Dynamic effects during a high-speed sinter-forging process”, International Journal of Machine Tools and Manufacture, Vol. 36, Issue 10, (1996), 1109-1122, ISSN 0890-6955.
10.1016/0890-6955(95)00122-0
VIII. Jha A. K., Kumar S., “Compatibility of sintered materials during cold forging”, International Journal of Materials and Product Technology’ 9, Issue 4-6, (2004), 281-299. 10.1504/IJMPT.1994.036423
IX. Jones P. K., “The technical and economic advantage of powder forged products”, Powder Metallurgy, Vol. 13, Issue 26, (1970), 114-129.
X. Kumar Parveen, Ranjan R. K., Kumar Rajive, “Mechanics of deformation during open die forging of sintered preform: Comparative study by equilibrium and upper bound methods”, ARPN Journal of Engineering and Applied Sciences, 6(6), (2011)83–93.
https://arpnjournals.com/jeas/research_papers/rp_2011/jeas_0611_515.pdf
XI. Kumar Parveen, Ranjan R. K., Kumar Rajive, “Investigations of an axisymmetric compound flow behavior of sintered preform: An upper bound approach”, International Journal of Pure and Applied Mathematics, Vol. 81, Issue 5, (2012), 671-691.
https://www.ijpam.eu/contents/2012-81-5/2/2.pdf
XII. Kumar Parveen, Ranjan R. K., Kumar Rajive, “Mathematical modelling of forging of sintered preform: Comparative study of open and closed die”, International Journal of Pure and Applied Mathematics, Vol. 82, Issue 2, (2012), 179-188. https://www.ijpam.eu/contents/2013-82-2/2/2.pdf
XIII. Kumar Parveen, Ranjan R. K., “Investigation on sintered preform with different geometrical shape”, AIP conference Proceedings, Volume 2142, 2019. 10.1063/1.5122620
XIV. Ranjan R. K. and Kumar S., “Effect of interfacial friction during forging of solid powder discs of large slenderness ratio”. Sadhana, 29, 535-543, 2004. 10.1007/BF02703260
XV. Rooks B. W., “The effect of die temperature on metal flow and die wear during high-speed hot forging”, In Proceedings of the Fifteenth International Machine Tool Design and Research Conference, Springer, (1975), 487-494
XVI. Singh S., Jha A. K., “Sintered preforms adds better value to aerospace components”, Journal of Aerospace Engineering, I. E. (I), 82, (2001), 1-6.
XVII. Singh Saranjit, Jha A.K., “Analysis of dynamic effects during high-speed forging of sintered preforms”, Journal of Materials Processing Technology, Volume 112, Issue 1, 2001,Pages 53-62, ISSN 0924-0136 10.1016/S0924-0136(00)00898-0
XVIII. Singh S., Jha A. K., “An energy analysis during forging of sintered truncated conical preform at high-speed”, Tamkang J. of Science and Engineering,7,(2004),227-236. http://jase.tku.edu.tw/articles/jase-200412-7-4-05
XIX. Singh Saranjit & Jha A. K. & Kumar Suhas. “Dynamic effects during sinter forging of axi-symmetric hollow disc preforms”, International Journal of Machine Tools and Manufacture, Vol. 47, Issue 7-8,(2007),1101-1113. 10.1016/J.IJMACHTOOLS.2006.09.023
XX. Tabata T., Masaki S. and Abe Y.,”Analysis of Forging P/M Preforms” Journal of the Japan Society for Technology of Plasticity, 18, (1977), 373.
XXI. Tabata T., Masaki S. and Hosokawa K., “A Compression Test to Determine the Coefficient of Friction in Forging P/M Preforms”, International Journal of Powder Metallurgy Powder Technology, 16, (1980), 149.