**4. Conclusion**

To conclude, in this study, it has been determined that the effect of the swaging circle fitting design on the tightened fittings has a great effect on the swaging force besides the parameters such as material and mechanical properties, use environment, swaging method, swaging circle fitting material, and that the most and homogeneous swaging occurs in the Model type "C" (curved, grooved and wavy) clamping fitting design [13].

Although it is possible to combine different materials and combine two different geometries with different methods, it has been shown in this study that combinations should be modeled and analyzed with advanced engineering since they are exposed to thermal and mechanical loads in terms of usage environments and has high requirements such as sealing [13].
