New welding technologies for car body frame welding

• Autorzy: Węgrzyn T. , Piwnik J. , Burdzik R. , Wojnar G. , Hadryś D.
• Języki publikacji: EN

Abstrakty

EN

Purpose: of that paper was analysing main welding process for car body welding. The main reason of it was investigate possibilities of getting varied amount of acicular ferrite (AF) in WMD (weld metal deposit). High amount of acicular ferrite influences positively impact toughness of weld. For optimal amount of AF it is necessary to have optimal chemical composition in WMD. Important role plays especially Ni. There were also tested new welding technology: welding with micro-jet cooling. Design/methodology/approach: During research with varied micro-jet parameters the chemical analysis, micrograph tests and Charpy V impact test of the metal weld deposit on pendulum machine were carried out. The Charpy V impact test was prepared according to standard ISO EN 148-1 Metallic materials - Charpy pendulum impact test - Part 1: Test method. Samples for impact testing were prepared according to standard ASTM A370. Findings: Varied amount of acicular ferrite in weld metal deposit (in range 55-75%) in terms of micro-jet cooling parameters (numbers of jet, gas pressure). This high amount of acicular ferrite is unheard in weld metal deposit in another way or other methods of welding like MAG or TIG. Research limitations/implications: That research was made for MIG method (according to PN-EN ISO 4063:2009) only. Another method of welding in this article was not tested. Other methods (for eg. MAG, TIG) have not been tested, but it is suspected that similar phenomena are taking place. Originality/value: In this research new method of cooling weld joint during welding was used. At the present time use of micro-jet cooling while MIG is in the testing phase and requires an accurate diagnosis.This method is very promising and capable of industrial application, mainly due to the significant improvement of weld quality and reduces costs.

Słowa kluczowe

EN

alloy elements; welding; nickel; Micro-jet cooling parameters; weld metal deposit

PL

pierwiastki stopowe; spawalnictwo; nikiel; Micro-Jet parametry chłodzenia; współczynnik stapiania

• Wydawca: International OCSCO World Press
• Czasopismo: Archives of Materials Science and Engineering
• Rocznik: 2012
• Tom: Vol. 58, nr 2
• Strony: 245--249
• Opis fizyczny: Bibliogr. 23 poz.

Twórcy

autor

Węgrzyn T.

• Silesian university of Technology, ul. Krasińskiego 8, 40-019 Katowice, Poland

autor

Piwnik J.

• Bialystok University of Technology, ul. Wiejska 45a, 15-351 Białystok, Poland

autor

Burdzik R.

• Silesian university of Technology, ul. Krasińskiego 8, 40-019 Katowice, Poland

autor

Wojnar G.

• Silesian university of Technology, ul. Krasińskiego 8, 40-019 Katowice, Poland

autor

Hadryś D.

• WSZOP, ul. Bankowa 8, 40-007 Katowice, Poland

Bibliografia

• [1] P. Judson, D. Mc Keown, Advances in the control of weld metal toughness, Proceedings of the 2nd International Conference on “Offshore Welded Structures”, London, 1982.
• [2] T. Wegrzyn, J. Piwnik, P. Baranowski, A. Silva, M. Plata, Micro-jet welding for low oxygen proces, Proceedings of the Interational Conference “Inovation and Development” ICEUBI’2011, Covilha, 2010.
• [3] T. Węgrzyn, J. Piwnik, B. Łazarz, D. Hadryś, R. Wiszała, Parameters of welding with micro-jet cooling, Archives of Materials Science and Engeneering 54/2 (2012) 86-92.
• [4] T. Węgrzyn, D. Hadryś, M. Miros, Optimization of operational properties of steel welded structures, Maintenance and Reliability 3 (2010) 30-33.
• [5] T. Węgrzyn, J. Mirosławski, A. Silva, D. Pinto, M. Miros, Oxide inclusions in steel welds of car body, Materials Science Forum 636-637 (2010) 585-591.
• [6] V.K. Goyal, P.K. Ghosh, J.S. Saini, Influence of pulse parameters on characteristics of bead-on-plate weld deposits of aluminium and its alloy in the pulsed gas metal arc welding process, Metallurgical and Materials Transactions A 39/13 (2008) 3260-3275.
• [7] J. Łabaj, G. Siwiec, B. Oleksiak, Surface tension of expanded slag from steel manufacturing in electrical furnace, Metalurgija 50/3 (2011) 209-211.
• [8] J. Słania, Influence of phase transformations in the temperature ranges of 1250-1000ºC and 650-350ºC on the ferrite content in austenitic welds made with T 23 12 LRM3 tubular electrode, Archives of Metallurgy and Materials 50/3 (2005) 757-767.
• [9] K. Krasnowski, Influence of stress relief annealing on mechanical properties and fatigue strength of welded joints of thermo-mechanically rolled structural steel grade S420MC, Archives of Metallurgy 54/4 (2009) 1059-1072.
• [10] T. Węgrzyn, Mathematical equations of the influence of molybdenum and nitrogen in welds, Conference of International Society of Offshore and Polar Engineers ISOPE´2002, Kita Kyushu, 2002, copyright by International Society of Offshore and Polar Engineers IV, Cupertino- California, 2002.
• [11] T. Węgrzyn, Proposal of welding methods in terms of the amount of oxygen, Archives of Materials Science and Engineering 47/1 (2011) 57-61.
• [12] T. Węgrzyn, The classification of metal weld deposits in terms of the amount of oxygen, Proceedings of the Conference of International Society of Offshore and Polar Engineers ISOPE’99, Brest, 1999, 212-216.
• [13] L. Blacha, Untersuchungen der antimon entfernungs geschwindigkeit aus blisterkupfer im prozess der vakuumraffination, Archives of Materials Science and Engineering 50/4 (2005) 989-1002 (in German).
• [14] M. Adamiak, J. Górka, T. Kik, Structure analysis of welded joint of wear resistant plate and construction al steel, Archives of Materials Science and Engineering 46/2 (2010) 108-114.
• [15] T. Węgrzyn, J. Piwnik, D. Hadryś, R. Wieszała, Car body welding with micro-jet cooling, Journal of Achievements in Materials and Manufacturing Engineering 49/1 (2011) 90-94.
• [16] K. Lukaszkowicz, A. Kriz, J. Sondor, Structure and adhesion of thin coatings deposited by PVD technology on the X6CrNiMoTi17-12-2 and X40 CrMoV5-1 steel substrates, Archives of Materials Science and Engineering 51 (2011) 40-47.
• [17] ISO 148-1 Metallic materials - Charpy pendulum impact test - Part 1, Test method.
• [18] ASTM A370 Standard Test Methods and Definitions for Mechanical Testing of Steel Products.
• [19] R. Burdzik, Z. Stanik, J. Warczek, Method of assessing the impact of material properties on the propagation of vibrations excited with a single force impulse, Archives of Materials and Metallurgy 57/2 (2012) 409-416.
• [20] R. Burdzik, Monitoring system of vibration propagation in vehicles and method of analysing vibration modes, Communications in Computer and Information Science 329 (2012) 406-413.
• [21] K. Kurek, A. Smalcerz, Research of multilayer shields suppressing magnetic fields around the induction heaters, Przegląd Elektrotechniczny 84/7 (2008) 89-91.
• [22] B. Oleksiak, G. Siwiec, A. Blacha, J. Lipart, Influence of iron on the surface tension of copper, Archives of Materials Science and Engineering 44/1 (2010) 39-42.
• [23] G. Siwiec, J. Botor, The influence of antimony, lead and sulphur on the surface tension of liquid copper, Archives of Metallurgy and Materials 3 (2004) 611-621.