Abstract
The influence of properties of metal powder reinforcement in the weld zone of friction stir welded blanks on springback is investigated. The weld zone properties of friction stir welded aluminum alloys namely AA5052 and AA8011 were modified by reinforcing metal powders like Al and Cu at different volume fractions. Tensile behavior of unreinforced and metal powder reinforced friction stir welded blanks was monitored by tensile test, and springback was evaluated through the V-bending process. The results show that the tensile strength and ductility increase with an increase in volume fraction of both types of powder reinforcement up to a certain level after which decrease. There is about a 7% reduction in springback with a maximum level of 1.2 vol% of both types of reinforcements as compared with unreinforced welded blanks. This study helps us select suitable properties of reinforcing material to improve the mechanical properties and to reduce springback of tailor welded blanks.
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