Electromagnetic impact welding of Mg to Al sheets

Abstract Magnesium (Mg) and aluminium (Al) alloys have been lap welded using an electromagnetic impact welding technique. Metallographic examination of the welds has revealed sound and defect free interfaces. Complete metal continuity has been observed with a characteristic wavy interface. X-ray diffraction analysis has shown no intermetallic phases and suggested that this electromagnetic technique is a solid state welding process. All the shear strength samples welded with discharge energy of 6·7 kJ failed away from weld either in the plastically deformed zone or in the base metal. Optimum discharge energy has been determined as 6·7 kJ based on the shear strength results of the welds.

[1]  Y. Zhang,et al.  Microstructure characterisation of magnetic pulse welded AA6061-T6 by electron backscattered diffraction , 2008 .

[2]  G. G. Stokes.  "J." , 1890, The New Yale Book of Quotations.

[3]  P. Krishnaswamy,et al.  Magnetic Pulse Welding Aluminium Tubes to Steel Bars , 2004 .

[4]  S. Marya,et al.  Interfacial microstructures and temperatures in aluminium–copper electromagnetic pulse welds , 2004 .

[5]  G. Cowan,et al.  Mechanism of bond zone wave formation in explosion-clad metals , 1971 .

[6]  W. Hwang,et al.  Electromagnetic joining of aluminum tubes on polyurethane cores , 1992 .

[7]  Athanasios G. Mamalis,et al.  Electromagnetic forming and powder processing: Trends and developments , 2004 .

[8]  G. Song,et al.  Microstructure characteristics and mechanical properties of laser weld bonding of magnesium alloy to aluminum alloy , 2007 .

[9]  Flow stress, collision velocity and collision acceleration in electromagnetic welding , 1990 .

[10]  Sachin D. Kore,et al.  Effect of process parameters on electromagnetic impact welding of aluminum sheets , 2007 .

[11]  Andrew G. Glen,et al.  APPL , 2001 .

[12]  Ashish Kapoor,et al.  Modeling of the electromagnetic forming of sheet metals: state-of-the-art and future needs , 2003 .

[13]  Peihui Zhang,et al.  Joining enabled by high velocity deformation , 2003 .

[14]  T. Aizawa.  Methods for electromagnetic pressure seam welding of Al/Fe sheets , 2004 .

[15]  Sachin D. Kore,et al.  Electromagnetic impact welding of aluminum to stainless steel sheets , 2008 .

[16]  Nachum Frage,et al.  Interface phenomena in aluminium–magnesium magnetic pulse welding , 2008 .

[17]  A. Stern,et al.  Bonding zone formation in magnetic pulse welds , 2002 .

[18]  S. Marya,et al.  On The Characteristics of Electromagnetic Welds Between Aluminium and other Metals and Alloys , 2005 .

[19]  W. Hwang,et al.  Joining of copper tube to polyurethane tube by electromagnetic pulse forming , 1993 .