The Analysis of Microhardness Variations of Hydroformed P265TR1 Steel Axisymmetric Elements from Tubes

• Autorzy: Miłek T.

Identyfikatory

DOI

10.24425/afe.2020.133333

• Języki publikacji: EN

Abstrakty

EN

The paper discusses the effect of upsetting ratio on distribution of the microhardness in longitudinal sections of hydroformed axisymmetric elements made from P265TR1 steel. The experimental research of hydroforming was carried out at a special stand which included a press with tooling and a hydraulic feeding system of oil. The measurements of microhardness were taken with a MATSUZAWA MMT-X3 Vickers hardness tester at a load of 100 g. The samples used in the tests were prepared from tube segments with a thin-wall ratio of 0.045. In the experiment, steel components were formed at upsetting coefficients of 0.07 and 0.09. For an established course of pressure and upsetting force, a series of steel components with exact representation of the die-cavity was formed. The paper provides a comparison of the microhardness distributions in three zones of longitudinal sections of axisymmetric elements at different degrees of material deformation. The greatest values of microhardness occurred in the area of cap for components at an upsetting coefficient 0.09.

Słowa kluczowe

EN

axisymmetric component; tubes; mechanical properties; microhardness; hydroforming; P265TR1 steel

PL

elementy osiowo-symetryczne; rury; właściwości mechaniczne; mikrotwardość; hydroformowanie; stal P265TR1

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2020
• Tom: Vol. 20, iss. 3
• Strony: 74--78
• Opis fizyczny: Bibliogr. 13 poz., rys., tab.

Twórcy

autor

Miłek T.

• Kielce University of Technology, Kielce, Poland

Bibliografia

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• [2] Chałupczak, J. (1986). Hydromechanic bulging in the applications to the forming of T-pipes and X-joints. Kielce: University of Technology Scientific Papers. Mechanics 38. Habilitation dissertation. (in Polish).
• [3] Chałupczak, J. & Długosz, A.J. (1986) Hydromechanical bulge forming of axisymmetric parts. Mechanik. 4, 167-168. (in Polish).
• [4] Levy, B.S, Van Tyne, C.J & Stringfield, J.M. (2004). Characterizing steel tube for hydroforming applications. Journal of Materials Processing Technology. 150(3), 280-289. DOI: 10.1016/j.jmatprotec.2004.03.008.
• [5] Xu, Y., Zhang, S., Cheng, M., Song, H, Zhu, Q. & Zhang, G. (2013). Effect of process parameters on hydroforming of stainless steel tubular components with rectangular section. Materials Performance, Modeling and Simulation. Materials Science Forum. 749, 67-74. DOI: 10.4028/ www.scientific.net/MSF.749.67.
• [6] Saboori, M., Champliaud, H., Gholipour, J., Gakwaya, A., Savoie, J. & Wanjara, P. (2014). Evaluating the flow stress of aerospace alloys for tube hydroforming process by free expansion testing. International Journal of Advanced Manufacturing Technology. 72(9-12), 1275-1286. DOI: 10.1007/s00170-014-5670-5.
• [7] Lei, Q., Li M., Ilinich, A., Luckey, G. & Misra, A. (2019). Microstructural evolution and failure mechanism of an extrusion welded aluminum alloy tube during hydroforming processing. Materials Science and Engineering: A. 756, 346-353. DOI: 10.1016/j.msea.2019.03.066.
• [8] Ra, J.H., Han, S.W., Van Tyne, Ch.J. & Moon, Y.H. (2019). Manufacturing of a wire-reinforced aluminum tube via hydroforming process. International Journal of Machine Tools and Manufacture. 143, 1-15. DOI: 10.1016/ j.ijmachtools.2019.05.001.
• [9] Cui, XL., Wang, XS. & Yuan, S.J. (2019). Effects of mechanical property parameters on wrinkling behavior of thin-walled tubes in hydroforming process. The International Journal of Advanced Manufacturing Technology. 100(1-4), 729-740. https://doi.org/10.1007/s00170-018-3143-y.
• [10] Marciniak Z. (1971). Limit strains for deep drawing of sheets. Warszawa: WNT. (in Polish).
• [11] PN-EN ISO 6892-1:2016-09. Metallic materials — Tensile testing. Part 1: Method of test at room temperature.
• [12] Miłek, T. (2017). The effect of upsetting ratio on mechanical properties for hydromechanically bulged axisymmetric components made from copper tubes. Metalurgija. 56(3-4), 361-363. ISSN: 0543-5846.
• [13] Miłek, T. (2016). Influence of the upsetting ratio on microhardness in hydromechanically bulged axisymmetric components made from copper tubes. In METAL 2016: 25th International Conference on Metallurgy and Materials, 25th-27th May 2016 (pp. 446-451). Ostrava: TANGER.

Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020)