Influence of energy induced from processing parameters on the mechanical properties of friction stir welded lap joint of aluminum to coated steel sheet
- 629 Downloads
Friction stir welding has been attempted to evaluate joint strength of lap joint between aluminum sheet (AA6063) and zinc-coated steel (HIF-GA) sheet under different combination of rotational speed and traverse speed. The shear strength decreases significantly when rotational speed increases from 700 to 1,500 rpm at a traverse speed of 30 mm/min. At traverse speed of 50 mm/min, increasing rotational speed from 700 to 1,500 rpm, shear strength remains more or less the same. However, at a traverse speed of 100 mm/min, the shear strength increases significantly with increasing rotational speed from 700 to 1,500 rpm. Essentially, higher fracture load of the lap joint is obtained within a certain range of energy. The results have been correlated with the microstructural characteristics at the bond interface using energy dispersive X-ray spectroscopy, electron probe micro analyzer, and X-ray diffraction. The results show that characteristics of intermetallic compound formed at the interface derived from energy input takes predominating role towards lap joint of Al and coated steel. Furthermore, force and torque responses influenced by the processing parameters can be utilized as weld quality check.
KeywordsFriction stir lap welding (FSLW) High strength interstitial free steel (HIF) FSW parameters Intermetallic compound (IMC) Force Torque
Unable to display preview. Download preview PDF.
- 2.Park SHC, Sato YS, Kokawa H (2001) Mechanical properties and microstructure in friction-stir-weld of magnesium alloy AZ61. Proceedings of the 7th International Symposium, JWS, Kobe, pp 639–644Google Scholar
- 3.Maruzen (1990) Welding Handbook. Edited by Japan Welding Society, p. 496.Google Scholar
- 9.Elrefaey A., Takahashi A. and Ikeuchi K., (2005), Preprints of the national meeting of JWS. 73, pp.66–67Google Scholar
- 10.Chen YC, Komazaki T, Kim YG, Tsumura T, Nakata K (2007) Int. Weld Join Conf, Seoul, pp 435–36Google Scholar
- 14.ASM (1973) Metals handbook, vol. 8 Metallography, structures and phase diagram, Metals Park: ASM InternationalGoogle Scholar
- 16.Pretorius R, de Reus R, Vredenberg AM and Saris FW (1990), Mater. Lett. 9, pp. 494.Google Scholar
- 17.Kobayashi K., Nishimoto K., and Ikeuchi K., Zairyo Setsugo Kogaku No Kiso, (2002), Introduction to joining engineering of materials, Sampo, pp.182-188Google Scholar
- 19.Santella M, Grant G, Arbegast W, Plunge testing to evaluate tool materials for friction stir welding of 6061+20wt% Al2O3 composite, (2003), Proceedings of the 4th International Symposium on Friction Stir Welding, Part City, USAGoogle Scholar