Various joining techniques are used to create entire assemblies from individual parts in our assembly production. Whether automated or manual, the parts are processed and assembled using various processes. For a special surface finish, we rework outer skin parts by hand to optically and functionally improve the surfaces.
Punch riveting is a modern joining process that operates without heat input and has a very high reproducibility. Using semi-hollow punch rivets, different materials such as steel and aluminum can be joined without the need for pre-punching. It also allows for hybrid joining. The result is both quasi-static and dynamic.
The clinching process is another modern joining process for different materials which is also suitable for hybrid joining. Without heat input, filler material and pre-punching, a strength that is 1.5 times greater than spot welding is possible. The process is highly reproducible.
Gluing is an additional modern joining process. Because there are no material injuries like in drilling and bolting, it is mainly used for sealing connections. Like punch riveting and clinching, gluing is a reproducible process which usually doesn’t involve any heat input and can be used for joining different materials. Hardening with heat is used to permanently connect these.
Seaming is performed automatically and without heat input by folding the material. With seaming, standing seams with 90° and envelopes with 180° are possible.
Resistance spot welding is a combination of current and force through electrodes where several sheets are joined together. The main advantages are the energy efficiency and the high productivity. Component warping is minimal and no additional material is required for welding. Both steel and aluminum can be connected using this procedure.
Standard parts are joined using projection welding over extensive copper electrodes through a combination of current and force These include screws, nuts and bolts. The part being connected has one or more elevations, or projection welds, which melt together with the sheet during the current flow. The main advantage of the method is the short cycle time and the high, reproducible connection quality.
MIG welding (metal inert gas welding) is an arc welding process which is used to weld together the same metals as aluminum. Here we use Fronius CMT welding sources. Wire is required as filler material.
MAG welding (metal active gas welding) is another arc welding process that uses the shielding of gas to prevent oxidation. Argon and CO2 are used as gases, and wire is also used here as filler material. The process is used for welding steel manually or automatically. Here we use Fronius CMT welding sources.
Another arc welding process is TIG welding (tungsten inert gas welding), which is used for welding steel and aluminum. Protective gases are also used here. Wires and rods are used as filler materials, but welding is also possible without filler material.
GMA brazing is a brazing process in which aluminum and galvanized sheets are joined together. Copper silicone wire is required as filler material. The main advantages are the resistance of the weld seams to corrosion and the low temperatures that are required compared to welding.
Individual punching of connecting elements
We can punch a wide variety of punching elements from a full range of manufacturers. These include nuts, screws and bolts.