Improvement of Metal Forging Processes by Stresses and Temperatures Analysis

Mohammeda, Adnan I.; Ahmed, Ibrahim K.; Allow, Munir A.

doi:10.30684/etj.v40i6.2169

	Improvement of Metal Forging Processes by Stresses and Temperatures Analysis
Engineering and Technology Journal
Article 5, Volume 40, Issue 6, June 2022, Pages 869-878 PDF (1.17 M)
Document Type: Research Paper
DOI: 10.30684/etj.v40i6.2169
Authors
Adnan I. Mohammeda^* ¹; Ibrahim K. Ahmed²; Munir A. Allow¹
¹Production Engineering Dept, University of Technology-Iraq, Alsina’a street, 10066 Baghdad, Iraq.
²State Company for Steel Industries, Baghdad, Iraq
Abstract
The mechanical components are produced by various fabrication methods, although forged products have excellent mechanical characteristics at a minimal cost. The stress and temperature analysis process in the closed die hot forging contributed to finding failure regions in these dies through simulations in the FE program. This enables the process to be improved and reduced time and mineral losses. A simplified model was used to represent the forming process, with a temperature of (1150-950 °C) was simulated using MSC Simufact software. The forge fastener head product is formed with a horizontal mechanical press of 800 tones. In this research, the workpiece material used Ck45 alloy steel, 56NiCrMoV 7 tool material. The results illustrate the maximum equivalent stresses values, and the maximum value was 739.70 MPa / 240.64 on lower die and product at a heating temperature of 950 °C, respectively. The local plastic deformation would be expected at places where the maximum stress is generated and exceeds the yield strength of the die material.
Highlights
The research discussed the causes of plastic deformation in dies. The temperature range employed in the forming process affected the quality of the analysis. The features gained in the hot forging process were determined and thoroughly studied. Development of hot forging tools and procedures.
Keywords
hot forging; plastic deformation; die stress analysis

References
[1] Jabbar, Mohammed S., and Muhsin J. Jweeg. Numerical and Experimental Study of Elastic Recovery in Deep Drawing of Low Carbon and Galvanized Steel Sheet Conical Products. IOP Conference Series: Materials Science and Engineering. 1094 (2021).‏ [2] Biba, Nikolay, Andrey Vlasov, Dmitry Krivenko, Alexey Duzhev, and Sergey Stebunov. Closed Die Forging Preform Shape Design Using Isothermal Surfaces Method. Procedia Manufacturing, 47 (2020) 268-273. [3] Ghalehbandi, S. M., and F. Biglari. Predicting damage and failure under thermomechanical fatigue in hot forging tools. Engineering Failure Analysis, 113 (2020) 104545. [4] Hawryluk, Marek, Marcin Kaszuba, Zbigniew Gronostajski, Sławomir Polak, and Jacek Ziemba. Identification of the relations between the process conditions and the forging tool wear by combined experimental and numerical investigations. CIRP Journal of Manufacturing Science and Technology, 30 (2020) 87-93. [5] Gao, P. F., Fei, M. Y., Yan, X. G., Wang, S. B., Li, Y. K., Xing, L., ... & Keyim, Z. Prediction of the folding defect in die forging: a versatile approach for three typical types of folding defects. Journal of Manufacturing Processes, 39 (2019) 181-191. [6] Gronostajski, Zbigniew, Marcin Kaszuba, Paweł Widomski, Jerzy Smolik, Jacek Ziemba, and Marek Hawryluk. Analysis of wear mechanisms of hot forging tools protected with hybrid layers performed by nitriding and PVD coatings deposition. Wear, 420 (2019) 269-280. [7] Gronostajski, Z., Kaszuba, M., Polak, S., Zwierzchowski, M., Niechajowicz, A., & Hawryluk, M. The failure mechanisms of hot forging dies. Materials Science and Engineering, 657 (2016) 147-160. [8] Rajiev, R. Simulation and Analysis of hot forging dies for Pan Head bolt and insert component. Materials Today, 5 (2018) 7320-7328. [9] Pandya, Vishal A., and P. M. George. Effect of preform design on forging load and effective stress during closed die hot forging process of pin. Materials Today: Proceedings ,(2020).‏ [10] Abed, Aseel Hamad. The Effect of Hold Time on the Spring Back Phenomenon in a V-Dies Bending Process Eng. and Tech. Journal, 30 (2012). [11] Gatea, Shakir & Jabber, Abbass, Finite Element Analysis of Sheet Metal U-Bending Using Free Form Surface, Eng. &Tech. Journal, 30 (2012) 2431-2442. [12] JWEEG, Muhsin J.; MOHAMMED, Adnan I.; JABBAR, Mohammed S. Four Earing’s Prediction in Deep Drawing of AISI 1008 Steel Sheet Conical Product. In: IOP Conference Series: Materials Science and Engineering. IOP Publishing, p. 012051, (2020). [13] Rajiev, R. Simulation and Analysis of hot forging dies for Pan Head bolt and insert component. Materials Today, 5 (2018) 7320-7328. [14] T.-P. Hung, H.-E. Shi, J.-H. Kuang, Temperature modeling of AISI 1045 steel during surface hardening processes, Materials, 11 (2018) 1815. [15] Younis, K., Jabber, A., & Abdulrazaq, M. Experimental Evaluation and Finite Element Simulation to Produce Square Cup by Deep Drawing Process. Al-Khwarizmi Engineering Journal, 14 (2018) 39-52.
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