Joining of Carbon Steel AISI 1006 to Aluminum Alloy AA6061-T6 Via Friction Spot Joining Technique

Abstract

This work aims to join sheets of carbon steel to aluminum alloy AA6061. A lap joint arrangement was used with a joint lap area of dimensions * 25 25 mm. The joining procedure was carried out using a rotating tool of 10 mm shoulder diameter. Three process parameters, with three levels for each parameter, were selected to investigate their effects on joints quality. The parameter’s levels for each experiment were designed using the design of the experiment method (DOE). The results indicated that the two materials were joined by a mechanical interlock at an interface line, without formation of intermetallic compounds. The shear force of the joint reached an ultimate value of. 482kN. The shear force of the joint improved by increasing plunging depth of the tool. Samples of minimum shear force value failed by a pull-outing aluminum metal from the carbon steel specimen. Samples of higher shear force value exhibited a shear mode of fracture. Increasing the rotating speed and decreasing pre-heating increased the process temperature.

Influence of Welding Parameters on Mechanical Properties and Microstructure of Similar Low-Carbon Steel AISI 1005 Welding by Resistance Spot Welding

“…The joining of low-carbon steel sheets is attractive because spot welds' mechanical characteristics are essential. A significant factor is the difference in low-carbon steel characteristics during the spot-welding process [7,8]. RSW significantly affects how automotive bodies are assembled.…”

Process Parameters Influence the Mechanical Properties and Nugget Diameter of AISI 316 Stainless Steel During Resistance Spot Welding

“…However, an increase in welding energy may result in significant surface indentations and weld spatter because the resistance heat typically concentrates in the nugget's centre. Because of the increased stress concentration, the nugget strength may be reduced, and the welding process may become unstable [18][19][20][21][22]. These process parameters must be optimised to acquire the maximum WN size and joint force.…”