Effect of Process Parameters on Microstructure and Mechanical Properties of RFSSW Lap Joints of Thin Al7075-T6 Sheets

• Autorzy: Andres J. , Wrońska A. , Gałaczyński T. , Luty G. , Burek R.

Identyfikatory

DOI

10.24425/118906

• Języki publikacji: EN

Abstrakty

EN

Refill friction stir spot welding (RFSSW) is a new technique of metal structures joining. Within the framework of activities of PZL Mielec in R&D area (program Innolot) researches are realized which aim is to develop the RFSSW technology as a method of joining thin aluminum elements used in aircrafts constructions. The paper presents results of investigations on the RFSSW lap joints welded using rotations in the range from 1500 to 2000 rpm and tool sleeve plunge depth from 1.6 to 1.8 mm. Thin aluminum sheets of thickness 0.8 and 1.6 mm coated with alclad or anodized were welded. Results of the investigations prove that the most common cause of specimens breaking was presence of geometrical defect – the so called hook and weak bonding between parent material and working area of internal sleeve of RFSSW tool. The best tensile strength was reached in case of joint welded at rotational speed 2000 rpm and tool plunge depth 1.6 mm and 1.7 mm (5.37 kN and 5.87 kN adequately). These joints were characterized by very fine and uniform microstructure in the area between sleeve stirred zone and parent material.

Słowa kluczowe

EN

refill friction stir welding; lap joining; aerostructures; aluminum alloy; alclad

• 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: 2018
• Tom: Vol. 63, iss. 1
• Strony: 39--43
• Opis fizyczny: Bibliogr. 8 poz., rys., tab.

Twórcy

autor

Andres J.

• PZL Mielec A Sikorsky Company, Mielec, Poland

autor

Wrońska A.

• PZL Mielec A Sikorsky Company, Mielec, Poland

autor

Gałaczyński T.

• PZL Mielec A Sikorsky Company, Mielec, Poland

autor

Luty G.

• PZL Mielec A Sikorsky Company, Mielec, Poland

autor

Burek R.

• PZL Mielec A Sikorsky Company, Mielec, Poland

Bibliografia

• [1] M. P. Mubiayi, E. T. Akinalbi, WCECS 2 (2014).
• [2] L. C. Campanelli, U. F. H. Suhuddin, A. I. S Antonialli, Journal of Materials Processing Technology 213, 515-521 (2013).
• [3] Y. Q. Zhao, H. J. Liu, Z. Lin, S. X. Chen, J. C. Hou, Science and Technology of Welding and Joining 19, 7, 617-622 (2014).
• [4] Z. Shen, Y. Chen, J.S.C. Hou, X. Yang, A. P. Gerlich, Science of Technology of Welding & Joining 20, 48-57 (2015).
• [5] P. S. Effertz, V. Infante, L. Quintino, U. Suhuddin, S. Hanke, J. F. dos Santos, International Journal of Fatigue 87, 381-390 (2016).
• [6] Z. Shen, X. Yang, S. Yang, Z. Zhang, Y. Yin, Materials and Design 54, 766-778 (2014).
• [7] M. Reimann, T. Gartnerb, U. Suhuddina, J. Göbela, J.F. dos Santos, Journal of Materials Processing Technology 237, 12-18 (2016.)
• [8] Z. Li, S. Gao, S. Ji, Y. Yue, Journal of Materials Engineering and Performance 25 (4), 1673 (2016).

Uwagi

EN

1. Financial support of The National Centre for Research and Development, European Union, PZL Mielec A Sikorsky Company in the framework of European Regional Development Fund Project “Advanced techniques for the fabrication of airframe structures using innovative friction stir welding (FSW) technology”, Nr INNOLOT/I/4/NCBR/2013 is gratefully acknowledged.

PL

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