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Thin sheets, precisely joined by spot welding

Processes

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  • Arc welding processes
    • Gas metal arc welding
    • Tungsten inert gas and plasma arc welding
    • Submerged arc, electro-gas and electro-slag welding
  • Beam welding processes
    • Laser beam welding
    • Laser beam welding in vacuum
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  • Low-heat input joining processes
    • Resistance spot welding
    • Ultrasonic welding
    • Friction stir welding
  • Adhesive bonding
  • Special processes
 

Your contact person

Dipl.-Ing.
Marc Essers

Project Manager Low-Heat Welding Processes
+49 241 990085 14
essers@fef-aachen.de

Scientific Research Partner

Resistance spot welding – easy, fast, automatable

With resistance spot welding, metals can be attached on lap joint in a cost-efficient, easy and highly automated process, which makes it a standard in the automobile industry.

During the process, two highly conductive copper electrodes press the sheets that are to be joined onto one another. Due to the current flow, high heat develops on the transition of the two sheets which melts the material and welds the two sheets together. Therefore, filler material is not required in resistance spot welding.

Finding the right parameters

All relevant aspects of resistance spot welding and resistance projection welding can be presented and optimised in the optimally equipped laboratory of our research partner ISF. Along with our long-time experience and the use of latest testing and measuring technology we further optimise even well-functioning processes in resistance spot welding to help you to increase your competitiveness.

One-sided accessibility

In the automobile industry in particular, increasingly thinner sheets are used for lightweight structures. Nevertheless, to ensure high strength, sheet profiles are used. Depending on the geometry of the profiles the required accessibility for the standard resistance spot welding may not be given. In that case, currently less efficient welding processes are used.

Our research partner ISF evaluated and optimized a fully automated spot-welding process without sealing run and brought it to industrial maturity. Together with ISF we are able to introduce this efficient alternative for structural lightweight design in your production.

FEF Forschungs- und Entwicklungsgesellschaft Fügetechnik
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