Comparative Analysis of the Impact of Die Design on its Load and Distribution of Stress During Extrusion

• Autorzy: Nowotyńska Irena , Kut Stanisław

Identyfikatory

DOI

10.23743/acs-018-27

• Języki publikacji: EN

Abstrakty

EN

In the paper a numerical comparative analysis of stresses in a steel die compressed by a ring during the extrusion process was presented. In the research, three design solutions of the die were used. The solutions vary depending on the quotient of the wall thickness of the die insert and the wall thickness of the compression ring while maintaining a constant tool diameter. The stresses occurring in the areas of the ring and the die were calculated depending on the design version of the tool and the pressure value. The analysis was carried out for the quotients of the die wall thickness to the ring wall thickness of 0.57, 1 and 1.75 and three press-in values of 0.004, 0.008 and 0.016 mm. The conducted research allowed determining the impact of the die design and assembly interference on the load bearing capacity. It was discovered that the use of a die insert with a smaller thickness com-pared to the thickness of the compression ring was the most advantageous from the point of view of the circumferential stresses.

Słowa kluczowe

EN

extrusion; FEM simulation; compressed die

PL

wytłaczanie; symulacja MES; skompresowana matryca

• Wydawca: Polskie Towarzystwo Promocji Wiedzy ; Lublin University of Technology
• Czasopismo: Applied Computer Science
• Rocznik: 2018
• Tom: Vol. 14, no 4
• Strony: 25--33
• Opis fizyczny: Bibliogr. 8 poz., fig., tab.

Twórcy

autor

Nowotyńska Irena

• Rzeszow University of Technology, The Faculty of Management, Department of Computer Engineering in Management, Al. Powstańców Warszawy 8, 35-959 Rzeszów, Poland

autor

Kut Stanisław

• Rzeszow University of Technology, The Faculty of Mechanical Engineering and Aeronautics, Department of Materials Forming and Processing, Al. Powstańców Warszawy 8, 35-959 Rzeszów, Poland

Bibliografia

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• [2] Frater, J. L. (1989). Application of Finite Element Methods to the Design of Prestressed Tooling. Journal Mater. Shaping Technology, 7(1), 49–55. doi:10.1007/BF02834802
• [3] Joun, M. S., Lee, M. C., & Park, J. M. (2002). Finite element analysis of prestressed die set in cold forging. International Journal of Machine Tools & Manufacture, 42, 1213–1222.
• [4] Kut, S., & Nowotyńska, I. (2011). Comparative numerical analysis of die wear during extrusion process of metals with different properties. Hutnik, Wiadomości Hutnicze, 78(11), 925–929.
• [5] Nowotyńska, I., & Kut, S. (2014). Analiza numeryczna naprężeń podczas wyciskania
• w matrycy zwykłej i sprężonej. Hutnik, Wiadomości Hutnicze, 81(7), 465–469.
• [6] Pater, Z. (2003). Ołów jako materiał modelowy do symulacji procesów obróbki plastycznej na gorąco. Obróbka Plastyczna Metali, 14(4), 41–48.
• [7] Yeo, H. T., Choi, Y., & Hur, K. D. (2001). Analysis and Design of the Prestressed Cold Extrusion Die. The International Journal Advanced Manufacturing Technology, 18(1), 54–61.
• [8] Zimpel, J. (1996). Obliczanie matryc wzmacnianych jednym pierścieniem. Obróbka Plastyczna Metali, 2, 43–56.