INNOVATIVE WELDING PROCESS FOR LIGHTWEIGHT CONSTRUCTION AND FOR JOINING MATERIALS AND MATERIAL COMBINATIONS WHICH HAVE BEEN CONSIDERED AS NON-WELDABLE.

Friction Stir Welding

The FSW-technology

Friction Stir Welding (FSW) is a solid-state joining method, i.e. the welding process is performed below the materials melting temperature in the solid state.

 

Functional principle
A wear-resistant rotating tool is plunged into the joining surface of the join partners and is subsequently traversed along the weld line. During cooling, an appropriate weld seam is produced between the respective components.
Friction stir welding can be principally applied to all materials which can be plasticized. The joining process, however, is particularly suitable for welding aluminium in all alloy and manufacturing forms for thicknesses from 0.5mm up to over 50mm. Apart from that, the process enables the joining of different (dissimilar) materials. For friction stir welding of aluminium alloys, the globally valid standard DIN EN ISO 25239 – Part 1-5 can be applied.

FSW of steel

Basically, the technological advantages of friction stir welding can be expanded to materials with high melting points as well. One important aspect of FSW is its applicability for joining of higher-strength steels, since the use of conventional welding methods such as arc welding is limited. The Stirtec-solution is based on the application of FSW-tools that are characterized by a high process reliability at comparatively low tool costs. For further and more detailed information, we will be pleased to answer your requests personally or you are welcome to contact us by email at office@stirtec.at.

Friction Stir Spot Welding

The FSSW technology

Friction Stir Spot Welding (FSSW) is a special variant of the classical “linear” FSW process. The FSSW-method is particularly attractive for joining tasks, at which sealing and adhesive media are applied to the surfaces between the components to be joined.

In cooperation with the automotive and engineering industry, Stirtec has developed technical solutions such as the FSSW welding gun of the Stirpower SWG-series which is capable of being mounted on an industrial robot or stationary on a special chassis.

 

For further and more detailed information, we will be pleased to answer your requests personally or you are welcome to contact us by email at office@stirtec.at.

Publications

15.02.2017
A partner for welding the unweldable
Aluminium Times Jan/Feb 2017, p. 45.
10.10.2016
Effect of RTE treatment on toughness of HSS weld metal
Cerjak, H-H.; Enzinger, N.; Caliskanoglu, O.; Figner, G.; Pudar, M.; Mendez Martin, F.; Domankova, M.: Proceedings 10th International Conference on Trends in Welding Research (2016). Tokyo, p. 213-216
01.03.2016
Embrittlement of high-strength weld metal during stress relief annealing
Cerjak, H.; Caliskanoglu, O.; Enzinger, N.; Figner, G.; Pudar, M.: Embrittlement of high-strength weld metal during stress relief annealing. - in: Schweißen und Schneiden 68 (2016) Heft 3, S. 128 - 132.
13.01.2015
Mobile Friction Stir Welding Systems for Marine Applications
Figner, G.; Weinberger, T.: Mobile Friction Stir Welding Systems for Marine Applications. – in: Seminar on the Applications of Friction Stir Welding in Shipbuilding, 68th IIW Annual Assembly, Helsinki. (2015)
13.01.2015
Process Development of Friction Stir Spot Welding for Automotive Applications
Pfeiffer, C.; Weinberger, T.; Figner, G.: Process Development of Friction Stir Spot Welding for Automotive Applications. - in Proceedings of the “4th International Conference on Scientific and Technical Advances on Friction Stir Welding & Processing”. (2015) pp. 19 - 22
13.01.2014
Application of Friction Stir Welding in the Automotive Industry
Weinberger, T.; Figner, G.: Application of Friction Stir Welding in the Automotive Industry – in Proceedings of the International Conference on “Advanced Technology on Welding and Joining for Heavy, Automotive and Electronics Industries”. (2014)