Susceptibility for extrusion welding of AlMg alloys

• Autorzy: Leśniak Dariusz , Wassermann Alicja , Dziki Mateusz , Zaborowski Krzysztof , Jurczak Henryk

Identyfikatory

DOI

10.1016/j.acme.2018.08.005

• Języki publikacji: EN

Abstrakty

EN

The extrusion of hollow profiles from high strength aluminium alloys through porthole dies causes serious problem in practice. Mainly, this is due to low weldability of these alloys and high extrusion force. The present paper discusses the investigations undertaken to determine the weldability of hard AlMg alloys using the original method and device. Main advantage of the proposed method is that it allows for the reflection of real welding conditions occurring in a welding chamber of the porthole die. Weldability tests were performed for alloys: 5754 (3.5% Mg), 5083 (4.5% Mg), 5019 (5.6% Mg) and 5xxx (7.1% Mg) in a wide range of temperature, unit pressure (normal compressive stress) and duration of welding. Microstructure and strength properties of the welds were examined. Most favourable welding conditions for the tested alloys, allowing for obtaining high strength welds were defined. To validate the laboratory experiments the extrusion trials were performed in the industrial conditions, in which the round tubes from 5754 alloy were produced using the porthole dies. The tensile strength of the welds in the extruded tubes is comparable to that for the solid material. Strength of the welds as well as of the solid material strongly increases with magnesium content in the alloy.

Słowa kluczowe

EN

5xxx series aluminium alloys; extrusion welding; die design; weld quality

PL

stopy aluminium; spawanie ekstruzyjne; projekt matrycy; jakość spoin

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2019
• Tom: Vol. 19, no. 1
• Strony: 20--31
• Opis fizyczny: Bibliogr. 19 poz., fot., rys., tab., wykr.

Twórcy

autor

Leśniak Dariusz

• AGH University of Science and Technology, Faculty of Non-Ferrous Metals, 30-059 Krakow, al. Mickiewicza 30, A-2, woj. małopolskie, Poland

autor

Wassermann Alicja

• AGH University of Science and Technology, Faculty of Non-Ferrous Metals, 30-059 Krakow, al. Mickiewicza 30, A-2, woj. małopolskie, Poland

autor

Dziki Mateusz

• AGH University of Science and Technology, Faculty of Non-Ferrous Metals, 30-059 Krakow, al. Mickiewicza 30, A-2, woj. małopolskie, Poland

autor

Zaborowski Krzysztof

• AGH University of Science and Technology, Faculty of Non-Ferrous Metals, 30-059 Krakow, al. Mickiewicza 30, A-2, woj. małopolskie, Poland

autor

Jurczak Henryk

• Albatros Aluminium Sp. z o.o., ul. Południowa 36, 78-604 Wałcz, woj. zachodniopomorskie, Poland

Bibliografia

• [1] P. Saha, Aluminum Extrusion Technology, ASM International, Ohio, 2000.
• [2] A. Wojtyna, D. Leśniak, A. Rękas, T. Latos, K. Zaborowski, B. Leszczyńska-Madej, Analysis of extrusion welding conditions for AlMg alloys with high Mg content, Key Eng. Mater. 682 (2016) 401–407.
• [3] D. Leśniak, Weldability testing of AlCuMg alloys for welding extrusion, Arch. Metall. Mater. 57 (2012) 7–17.
• [4] B. Dixon, Extrusion of 2xxx and 7xxx alloys,Chicago, USA, Proceedings of the 7th International Aluminum Extrusion Technology Seminar 2000.
• [5] L. Donati, L. Tomesani, Extrusion welds in hollow AA6060 profiles: FEM simulation, product characterization, and welding conditions reproduced in laboratory experiments, Verona, Italy, Proceedings of the 8th International Conference on Advanced Technology of Plasticity 2005.
• [6] L. Donati, L. Tomesani, G. Minak, Characterization of seam weld quality in AA6082 extruded profiles, J. Mater. Process. Technol. 191 (2007) 127–131.
• [7] I. Duplancic, J. Prgin, Determination of parameters required for joining process in hollow dies,Chicago, USA, Proceedings of the 6th International Aluminium Extrusion Technology Seminar 1996.
• [8] Y.A. Khan, H. Valberg, I. Irgens, Joining of metal streams In extrusion welding, Int. J. Mater. Form. 2 (2009) 109–112.
• [9] T. Shepard, On the relationship between extrusion conditions, mechanical properties and surface acceptability in some hard aluminium alloys,Chicago, USA, Proceedings of the 7th International Aluminium Extrusion Technology Seminar 2000.
• [10] R. Akeret, Extrusion welds – quality aspects are now center stage,Chicago, USA, Proceedings of the 5th Aluminium Extrusion Technology Seminar 1992.
• [11] L. Donati, L. Tomesani, The effect of die design on the production and seam weld quality of extruded aluminium profiles, J. Mater. Process. Technol. (2005) 1025–1031.
• [12] H. Valberg, Extrusion welding in porthole die extrusion, Chicago, USA, Proceedings of the 6th International Aluminium Extrusion Technology Seminar 1996.
• [13] J. Zasadziński, J. Richert, W.Z. Misiołek, Weld quality In extruded aluminum hollow sections, Light Metal Age 51 (1993) 8–13.
• [14] S. Bingöl, A. Bozaci, Experimental and numerical study on the strength of aluminium extrusion welding, Materials 8 (2015) 4389–4399.
• [15] L. Donati, L. Tomesani, V. Giacomelli, Evaluation of a new FEM criterion for seam welds quality prediction in aluminium extruded profiles,Orlando, USA, Proceedings of the 8th International Aluminium Extrusion Technology Seminar 2004.
• [16] J. Piwnik, A. Patejuk, Energetic criterion of longitudinal welding in hot extrusion of aluminium alloys, Arch. Foundry (2006) 161–166.
• [17] M. Plata, J. Piwnik, Theoretical and experimental analysis of seam weld formation in hot extrusion of aluminum alloys, Chicago, USA, Proceedings of the 7th International Aluminium Extrusion Technology Seminar 2000.
• [18] N. Alharthi, S. Bingol, A. Ventura, W.Z. Misiolek, Analysis of extrusion welding in magnesium alloys – numerical predictions and metallurgical verification, Procedia Eng. 81 (2014) 658–663.
• [19] D. Leśniak, A. Rękas, W. Libura, J. Zasadziński, T. Latos, H. Jurczak, Method of Weldability Testing of Metals and Alloys and Device for Production of Welded Samples for Weldability Analyses, Patent Pending No. 77P14PL, 2016.

Uwagi

PL

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