%0 conference lecture %@ %A Esteves, J.V., Amancio, S., dos Santos, J.F., Canto, L.B., Hage, E.jr. %D 2012 %J 65th Annual Assembly of the International Institute of Welding %T Friction Spot Joining of Aluminum 6181-T4 and Carbon Fiber Reinforced PPS: Effects of Process Parameters on Microstructure and Strength %U %X