ABSTRACT
The chapter reviews the challenges and difficulties involved in friction welding of dissimilar materials, covering metals and alloys, ceramics, and polymers. Design engineers are always looking to create new parts and structures with tailored properties. Sometimes a part needs to be lightweight, on the one end, and corrosion resistant on the other end. Friction welding is a solid-state joining method, which is one of the most economical and highly productive methods for joining similar and dissimilar metals. Rotary friction welding accounts for most of the friction welding activities. The welding cycle in Frcition Welding can be broadly divided into two stages: friction stage and upsetting stage. In linear and orbital friction welding, the amplitude is another variable along with the previously mentioned parameters. The frictional heat generation at the rubbing surface is more uniform in orbital friction welding compared to other types of friction welding.
