Frequently asked questions - FAQ

Which materials can be joined?

We weld mainly aluminium alloys, but also copper and magnesium as well as dissimilar metals such as AL-Cu and Al-steel.


How thick may the material be?

Penetration is between 0.5 and 30 mm. The workpieces themselves can certainly be thicker, since the high weld strength sometimes makes it unnecessary to weld right through. Alternatively, we can weld both sides. With our new machine we can even do this simultaneously.


What are the limits in plate sizes?

Plate sizes are limited to 8m x 3.5m at the moment.


What geometries can be joined by the FSW method?

The majority of the components are joined through butt or lap welding, and T-welds are also possible. Butt welds are used not only for pieces of the same thickness, but also of different thicknesses, called tailored blanks, which we friction stir weld in bulk.


What semi-finished products are suitable?

We weld aluminium sheet, profiles and castings as well as dissimilar joints in these products. The process is especially effective in castings, as any pores that there might be have no effect whatsoever in friction stir welding.


For which branches of industry do you weld?

Our customers operate in all conceivable sectors – basically, the application possibilities are unlimited.


Do you also sell friction stir welding systems?

Frequently we are asked this question. But no, usually we do not sell our machines. We only provide services for FSW and the pre- and post-welding machining.


Does FSW also work multidimensionally?

Yes, we have various welding systems for friction stir welding. On the five-axis machines we can also do curved or 3D welds.

fsw quickly explained