Friction welding is a pressure welding process. This technology can be used to join materials of the same type or of different types. KUKA established friction welding as an industrial joining process in 1966.
What is friction welding?
Friction welding is a solid state bonding process that produces high integrity, full contact joints. By rotating one work piece relative to another, whilst under a compressive axle force, the friction generated between the two faying surfaces produces heat, causing the interface material to plasticise. The compressive forge force displaces the plasticised material, extruding interface material and any contaminants, promoting molecular bonding, creating a homogeneous bond between the parent materials. With friction welding, no third party filler materials, flux or shielding gases are required. The process is machine controlled, 100% repeatable, with full in-process monitoring and quality assured.
Friction welding alloweds excellent quality weld joints by similar and dissimilar material welding
Thompson subcontract friction welding provides advanced manufacturing processes for a wide variety of industrial components, across several industries.
The process sequence of rotary friction welding
Frictional contact phase
One of the workpieces is rotated. Simultaneously, the other component is pressed against it with a defined level of pressure.
The contact surfaces heat up due to the relative motion (rotation) and the simultaneous pressure.
The rotation stops and the pressure is increased once again. This enables the plasticized material to be joined to the other component.
Both materials remain under pressure and can then cool down slowly.
Friction welding: the advantages
Friction welding technology has a number of advantages to offer. Benefit from these characteristics in particular:
A diverse range of material combinations
High degree of automation
Automated friction welding
Our flexible robot based systems allow for automated loading and unloading of our rotary friction welding machines, dependant upon your exacting requirements.
KUKA oﬀers a range of compact and modular friction welding machineswith forge capacities up to 400 Tons for the ﬂexible implementation of friction welding processes, adapted to the parameters and fixtures applicable to the weld component.
If you aren't able to acquire your own friction welding machine, no problem. Have your welding carried out by KUKA's automation professionals on premise at our Halesowen facility. We have been carrying out subcontract welding work, developing components and producing prototypes for renowned companies since 1970.
High weldability also for Bi-metallic and dissimilar materials:
KUKA guarantees you supreme quality in the production of safety-relevant components and enables you to weld even unusual material combinations:
Copper & aluminium welding
Copper & stainless steel welding
Aluminium & stainless steel welding
Mild steel & stainless steel welding
Carbon steel & stainless steel welding
Titanium & aluminium welding
Plus many more...
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