1. Nakui S., Kawakami K., Ueoka T., Tsujino: Welding structure of metal specimens welded using ultrasonic welding systems with linear and complex vibration welding tips, WCU, 2003, Paris, September 7–10, pp. 1273–1274.
2. Yilbas B.S., Sahin A.Z., Kahraman N., Al-Garni A.Z.: Friction welding of St-Al and Al-Cu materials, Journal of Metal Processing Technology, 1995, vol.49, No. 3–4, pp. 431–443.
3. Pinto M.A., Cheung N., Ierardi M.C.F., Garcia A.: Microstructural and hardness investigation of an aluminum-copper alloy processed by laser surface melting, Materials Characterization, 2003, vol. 50, No. 2–3, pp. 249–253.
4. Lee W.B., Yeon Y.M., Jung S.B.: Joint properties of Friction stir welded AZ31B-H24 magnesium alloy Materials Science and Technology, 2001, vol. 19, pp. 785–790.
5. Juhas M.C., Viswanathan G.B., Fraser H.L.: Microstructural evolution in a titanium alloy friction stir weld, Proc. Second Annual Symposium on Friction Stir Welding, Gothenburg, Sweden, June, 2000.