Optimization of friction stir spot welding process parameters for Al-Cu dissimilar joints using the energy of the vibration signals

1. Colmenero, A.N.
2. Orozco, M.S.
3. Macías, E.J.
4. Fernández, J.B.
5. Muro, J.C.S.-D.
6. Fals, H.C.
7. Roca, A.S.