Development and Modelling of a Novel Process of Manufacturing Cylindrical Products with a Variable Longitudinal-Section Stub Pipe

• Autorzy: Michalczyk J. , Wiewiórowska S. , Muskalski Z.

Identyfikatory

DOI

10.24425/amm.2019.129512

• Języki publikacji: EN

Abstrakty

EN

The publication presents a novel concept of the process of plastic forming of variable longitudinal-section cylindrical products, being the subject of Patent Application P.427426 [1]. Additionally, these products are provided with a connection stub pipe. The plastic forming method proposed in the article combines many advantages and utilitarian benefits associated with the manufacturing technology itself, as well as with its further implementation. Using stock in the form of normalized bar commonly available in the metal product market as a finished product obviously reduces the process costs involved with stock preparation, i.e. casting, rolling, machining, etc. It also results in obtaining a much smaller surface area of stock contact with the tool and, as a consequence, a smaller surface of stock friction against the tool, which contributes to a reduction of force needed for the plastic forming of the product. The smaller contact surface area and the shorter time of stock contact with the cooler tool cause, above all, less intensive heat exchange and stock chilling. This has a significant effect on the plasticity of the cast material and, as a consequence, the plastic forming force. The proposed method enables also manufacturing cylinders with either a closed or open stub pipe with a regulatedlength and a varying section. In addition, unlike the method known from Polish Patent Specification PL 212062 [2], the proposedmethod does not require using a multi-tool press. The upper punch is furnished with a flange, whose job is to start the stock extrud-ing sleeve at the next process stage.

Słowa kluczowe

EN

cylinder extrusion; FEM analysis; bronze extrusion; hot extrusion

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2019
• Tom: Vol. 64, iss. 3
• Strony: 1187--1193
• Opis fizyczny: Bibliogr. 16 poz., rys., wzory

Twórcy

autor

Michalczyk J.

• Czestochowa University of Technology, Institute of Metal Forming and Safety Engineering, 19 A. Krajowej Str., 42-200 Częstochowa, Poland

autor

Wiewiórowska S.

• Czestochowa University of Technology, Institute of Metal Forming and Safety Engineering, 19 A. Krajowej Str., 42-200 Częstochowa, Poland

autor

Muskalski Z.

• Czestochowa University of Technology, Institute of Metal Forming and Safety Engineering, 19 A. Krajowej Str., 42-200 Częstochowa, Poland

Bibliografia

• [1] J. Michalczyk, S. Mróz, S. Wiewiórowska, P. Szota, Sposób wytwarzania wyrobów cylindrycznych z króćcem o zmiennym przekroju wzdłużnym. Aplication Patent. P.427426.
• [2] V. V. Deviatow, J. Rajczyk, Sposób wytwarzania wyrobów wewnątrz pustych. Polish Patent PL231076.
• [3] J. Sińczak, Kucie dokładne. Kraków 2011
• [4] M. Zahn, J. Mater. Process Tech. 127, 401-408 (2002).
• [5] W. Libura, Płynięcie metalu w procesie wyciskania, Kraków 2011.
• [6] J. Piwnik, The Modeling processes plastic flow. Białystok 1992.
• [7] B. Pawłowska, R. Śliwa,Arch. Metall. Mater. 60 (2015).
• [8] D. Leśniak, Arch. Metall. Mater. 54, 4 (2009).
• [9] G. Winiarski, A. Gontarz, A. Dziubińska, Arch. Civ. Mech. Eng. 17, 4 (2012).
• [10] J. Bartnicki, Arch. Metall. Mater. 57, 4 (2012).
• [11] V. V. Dewiatov, H. S. Dyja, V. Y. Stolbow: Modeling mathematical and optimization processes extrusions, Częstochowa 2004.
• [12] V. V. Dewjatow, J. Michalczyk, J. Rajczyk, Teoretyczne podstawy i technologia procesów wyciskania. Częstochowa 2011.
• [13] J. Michalczyk, Sposób wytwarzania tulei przelotowej. Polish Patent PL 221425.
• [14] J. Michalczyk, M. Suliga, Sposób wytwarzania radiatora. Polish Patent PL 231076.
• [15] M. Pietrzyk, The numerical methods in plastic working metals. Kraków 1992.
• [16] H. Dyja, P. Szota, S. Mroz, J. Mater Process Tech. 153, 115-121 (2004).

Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).