The causes of failures in resistance spot welding of car body sheets

• Autorzy: Kascak L. , Vinas J. , Misicko R. , Takacova I. , Vojtko M. , Schmogner M. , Matta M. , Gatial M.
• Języki publikacji: EN

Abstrakty

EN

The paper deals with analyzing of defects of resistance spot welds, which mostly occur in welding of materials used in car body production. The defects were evaluated with destructive and non-destructive tests. A non-destructive method was a visual control of weld surfaces of lapped joints. Metallographical analysis of weld joints on scratch patterns was used as a destructive method. The influence of welding parameters on dimensions of weld nuggets was observed with light microscopy. The defects in weld and heat affected zone were documented too. The influence of surface treatment of car body sheets on occurring of defects was evaluated with chemical EDX analysis. EDX analysis was also used for evaluation of weld joints surfaces and for evaluation of influence of weld tips marks on surface quality.

Słowa kluczowe

EN

resistance spot welding; car body sheet; failure; automotive industry

PL

zgrzewanie oporowe punktowe; nadwozie samochodowe; uszkodzenie; przemysł motoryzacyjny

• Wydawca: Oficyna Wydawnicza Politechniki Rzeszowskiej
• Czasopismo: Zeszyty Naukowe Politechniki Rzeszowskiej. Mechanika
• Rocznik: 2010
• Tom: z. 80 [274]
• Strony: 135--142
• Opis fizyczny: Bibliogr. 9 poz., tab., rys., wykr.

Twórcy

autor

Kascak L.

autor

Vinas J.

autor

Misicko R.

autor

Takacova I.

autor

Vojtko M.

autor

Schmogner M.

autor

Matta M.

autor

Gatial M.

• Technical University of Košice, Slovak Republic

Bibliografia

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• 2. Zhang H., Senkara J.: Resistance Welding: Fundamentals and Applications. Taylor&Francis Group, New York 2006.
• 3. Maronek M., Kovačócy P., Púčik V.: Technológia zvárania: Návody na cvičenia. Bratislava : STU, 2006. 202 s. ISBN 80-227-2376-2.
• 4. Viňáš J., Kaščák L’.: Bodové odporové zváranie kombinácie vysokopevných a hlbokot’ažných ocelí. In. Transfer inovácií 11/2008.
• 5. Janota M.: Procesy a riadenie odporového zvárania. Bratislava: Výskumný ústav zváračský 1985.
• 6. Muranský O., Horňák P., Lukáš P., Zrník J., Šittner P.: Investigation of retained austenite stability in Mn-Si TRIP steel in tensile deformation condition. JAMME, Vol. 14, Issue 1-2, 2006, pp. 26-30 Bohler Thyssen Welding, UTP Schweipmaterial FmbH, Bad Krozingen, 2004.
• 7. Kaščák L’., Spišák E.: Resistance spot welding of three steel sheets for automotive industry. In: PRO-TECH-MA ‘07: Progressive Technologies and Materials : International scientific conference, Rzeszów - Bezmiechowa, Poland, Rzeszów : Politechnika Rzeszowska, 2007. p. 49-54.
• 8. Viňáš J., Kaščák L’.: Hodnotenie kvality zvarových spojov karosárskych plechov. In Transfer inovácií 8/2005 Košice: 2005, roč. 2005, č.8, s. 171.
• 9. Kaščák E., Spišák E.: Evaluations of properties of clinching and resistance spot welding. In: Scientific Bulletins of Rzeszów University of Technology : Mechanics 73. no. 253 (2008), p. 161-166.