| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1524040 | Materials Chemistry and Physics | 2012 | 5 Pages |
Aluminium alloy 6111-T4 and steel DC04 1 mm sheets have been successfully welded with a cycle time <1 s by “Abrasion circle friction spot welding”, a novel approach to joining dissimilar materials. This was achieved by using a probe tool translated through a circular path to abrade the steel sheet. It is shown that successful welds can be produced between these two weld members with a cycle time of less than one second, that exhibit very high failure loads and a nugget pullout fracture mode desired by industry. Transmission electron microscopy investigation of the joint interface revealed no intermetallic reaction layer. The weld formation mechanisms are discussed.
► High quality Al–steel dissimilar joints were produced within a short dwell time. ► This approach provides a new way to clear metal surfaces during welding. ► No continuous brittle IMC layer developing at the interface.
