Spot welding of aluminium and steel sheet with an insert of aluminium clad steel sheet: Dissimilar metal joining of aluminium and steel sheet (1st Report)

Steel to aluminium braze welding by laser process with Al–12Si filler wire

“…Despite some uncertainty on the nature of the intermetallic phases, the brittleness of such compounds is obvious. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] Peyre et al 17 have already observed that some low amount of silicon in Fe 2 Al 5 phase did not modify the hardness of this compound since identical values were obtained between phases containing up to 8 at.-%Si (1200¡100 HV 20 mN ) and 'pure' Fe 2 Al 5 .…”

“…Several methods of joining steel to Al have already been investigated, involving solid state joining, [1][2][3][4][5] reactive wetting (interaction between solid steel and liquid Al) [6][7][8][9][10][11][12][13][14][15][16][17][18] or laser key hole welding. 19,20 The steel to Al solid state joining was studied using various processes, such as explosion welding, 1 friction welding, 2,3 and more recently friction stir welding.…”

“…19,20 The steel to Al solid state joining was studied using various processes, such as explosion welding, 1 friction welding, 2,3 and more recently friction stir welding. 4,5 Classical welding processes such as arc welding, 6,7 resistance spot welding 8,9 and brazing 10 were used to develop a solid steel to liquid Al joining. Nevertheless, the major work of these last years has been the development of the laser process.…”

Effect of Steel Galvanization on the Microstructure and Mechanical Performances of Planar Magnetic Pulse Welds of Aluminum and Steel

“…The high chemical affinity of these materials [4] is another key difficulty for welding because it causes the formation of intermetallic compounds (IMCs). [2,5] Many investigations report welding of Al to galvanized or bare steel, for instance, (1) in the liquid state through various processes, such as metal arc joining, [6][7][8][9][10][11][12][13][14] cold metal transfer, [15,16] resistance spot welding, [17][18][19][20][21][22][23][24][25] electric discharge bonding, [26] electron beam welding, [27,28] explosive welding, [29][30][31] laser welding, [1][2][3][32][33][34][35][36][37][38][39][40][41][42][43][44] laser [45][46]…”

Critical assessment 27: Dissimilar resistance spot welding of aluminium/steel: Challenges and opportunities

“…1000-1150 HV [25,26,32,33]) and low fracture toughness (ca. 2-5 MPa m 0.5 [34,35]), is the [31]. The approximate peak temperature at solid/liquid interface (T S/L ) during RSW is highlighted.…”