The Paton Welding Journal, 2003, №01

2003 №01 (13)

2003 №01 (02)

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The Paton Welding Journal, 2003, #1, 6-11 pages

Properties of overlap joints of aluminium alloys produced by consumable electrode spot arc welding

I.V. Dovbishchenko, V.S. Mashin, V.A. Shonin, M.P. Pashulya

E.O. Paton Electric Welding Institute of the NASU 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine.

Abstract
Influence of the mode of consumable electrode pulsed-arc spot welding on the main geometrical parameters of welds, shear strength of weld nugget and off-centre rupture strength of the base metal have been studied in overlap joints of sheet aluminium alloys AMg6 and AD33. It is shown that maximum admissible current at minimum welding time should be used to reduce the heat input into the metal being welded and deformations of the upper sheet. Optimal values of nugget diameter have been established for different spot spacing in the overlap joint, at which the equal shear strength of the spot weld and rupture strength of the base metal are achieved
Keywords: pulsed-arc spot welding, consumable electrode, aluminium alloys, argon, helium, spot welds, geometrical parameters, defects, shear strength, off-centre rupture, investigations

References

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Suggested Citation

I.V. Dovbishchenko, V.S. Mashin, V.A. Shonin, M.P. Pashulya (2003) Properties of overlap joints of aluminium alloys produced by consumable electrode spot arc welding. The Paton Welding J., 01, 6-11.

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