Abstract
the purpose of this project was to introduce a way to improve the mechanical properties of welded dissimilar material, which gives benefits such as affordable, high speed, and suitable bond property. In this experimental project, the friction welding method has been applied, including combining parameters, such as numerical control (NC) machine including two different speeds, and three different cross-sections; including flat, cone, and step surfaces. When the welding process was done, samples were implemented and prepared via bending test of materials. the results have shown that, besides increasing the machining velocity, the surface friction increased, and so did the temperature. By considering the stated experimental facts, the melting temperature of composite materials has increased. This provides the possibility of having a better blend of nanomaterial compared to the base melted plastics. Thus, the result showed that, besides increasing the weight percentage (wt %) of Nanomaterials contents and machining velocity, the mechanical properties have increased on the welded area for all three types of samples. This enhancement is due to the better melting process on the welded area with attendance of various Nanoparticles contents. Also, the results showed that the shape of the welding area could play a significant role, and the results also change drastically where the shape changes. Optimum shape in the welding process has been dedicated to the step surface. The temperature causes the melting process, which is a significant factor in the friction welding process.
Strength in Rotary Friction Welding of Five Dissimilar Nickel-Based Superalloys
