PAB

Vacuum brazing is considered an established standard process for a wide range of applications. A major challenge when brazing large-format components is the component distortion that occurs. In addition to the change in component geometry, this leads to the formation of gaps between the joined parts, which cannot be bridged by the solder. Up to now, this problem has been countered by devices for fixing and clamping the parts, but this brings a lot of disadvantages, from additional costs to additional mass and reduced furnace volume.
In order to overcome the disadvantages of the use of clamping devices and to make the vacuum brazing of large-format components more reproducible, the aim of the planned research project is to work out the basics of jig-free brazing of large-format components using controlled press force support. This includes strategies for soldering large-format components with the aid of controlled external force application. With the development of the fundamentals of press-force-assisted brazing, the existing process limits for jig-free brazing - currently in the order of a DIN A4 sheet for steel materials - are to be extended.