This study deals with the importance of welding in manufacturing methods. There are various welding methods that have been developed to obtain suitable joints in various applications. However, friction welding, which is an alternative manufacturing method, is one of the methods that has been widely used for many years. In the present study, an experimental friction welding setup, which is a continuous drive friction welding set-up, was used in the experiments. Firstly, optimum parameters were obtained to join parts having equal diameter: Secondly, the effects of welding parameters on welding strength were investigated. Later, the mechanical properties of joints were examined by using tensile tests, fatigue tests, notch-impact tests and hardness tests. Finally, the results obtained were shown and discussed. (C) 2006 Elsevier Inc. All rights reserved.