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Friction stir welding (FSW)

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FSW technology and advantages

FSW is based on a mechanical mixing process through friction, which joins materials in a plastic state. It generates very little heat, avoids deformation and eliminates common welding defects such as porosity, cracks or inclusions. The process offers:

  • exceptional mechanical strength of joints
  • optimal repeatability
  • adaptability to complex geometries
  • consistent quality thanks to our latest-generation automated equipment

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Technical partnerships serving performance

As part of a continuous improvement approach, Calip Group collaborates with specialised institutes such as Institut de Soudure and CETIM, and is a member of Printing in Bourges.


 These partnerships strengthen our technological monitoring, certification levels and ability to offer ever more advanced solutions. Our FSW expertise is part of a long-term industrial quality and innovation strategy. 

Solid-state process

A weld performed without filler metal or material fusion, reducing the risk of deformation, cracking or porosity. Ideal for high-value aluminium alloys.

Excellent mechanical strength

FSW joints offer high mechanical resistance and long-term reliability, even under significant structural stress.

Environmentally responsible

A clean, energy-efficient process with no gas emissions or polluting consumables. FSW supports sustainable industry and low-carbon manufacturing.

Industrial applications

FSW is ideal for joining complex aluminium components in aerospace, defense, mobility and embedded electronics sectors.