Friction stir welding is used in many different sectors. It is used in aeronautics and aerospace, shipbuilding, railway, automotive, and the electrical industry. In the automotive industry, especially in the e-mobility sector, friction stir welding is used to produce battery boxes for electric vehicles.
The reason for the wide range of applications is that FSW allows for maximum welding quality. It is possible to join different materials with a relatively low heat input. With FSW, there are no weld defects such as pores or cracks, while high weld strength is achieved with minimal weld deformation.