Bond strength and formability of an aluminum-clad steel sheet

Enhancement of bending formability of brittle sheet metal in multilayer metallic sheets

“…Some studies on formability evaluation have been conducted on two-and three-ply clad laminates [8][9][10][11]; however, the plastic formability of multilayer laminates has not been sufficiently investigated. A few investigations had been made on the bending [12] and fracture mechanisms [13] of multilayer metallic sheets with more than seven layers.…”

Progress in cold roll bonding of metals

“…It has been reported that the roll bonding of metals is affected by various factors, such as the amount of deformation [3,15,16,35,[51][52][53], the type of metal under consideration [54], the temperature of bonding [8,55,56], the amount of enforcement pressure [57,58], the time of bonding [6,41,57], the metal purity [54], the lattice structure [54], the surface preparation conditions [1-4, 8, 16, 35, 51-53, 57, 59], the geometry of the deformation zone (shape factor) [60], the stacking sequence [61], the number of layers [62], the layer thickness [63,64] and the type of post-heat treatment [28,41,59,65]. The difference in bonding condition leads immediately to expansion and divergence of the technological bonding methods.…”

“…However, the general mechanism of bonding during rolling is still unclear; thus, there are some difficulties in precisely determining the bond strength using theoretical models, particularly in the case of bonding different metals. Figure 6 shows the map including different materials for successful cold bonding by rolling and/or by applying pressure [2-6, 12, 57, 68-71, 76, 79, 81-84] and ARB [20][21][22][23][24][25][26][27][28][29][30][31][32][33]85] according to the lattice structure and hardness of the metal at room temperature.…”

Investigation of different parameters on roll bonding quality of aluminium and steel sheets

“…After the rolling process, pieces of the composites are heat treated. The literature [2,4,5,6] describes postheat treatments at a constant temperature for various times in order to investigate the growth of the intermetallic phases. However, in the present analyses, the specimens are solution heat treated at 540°C for 2 min and aged at 170°C for 16 h (T6) to optimise the material properties of the aluminium alloy.…”