+33 (0)6 47 49 73 96 contact@stirweld.com


FSW Expertise

Our experts assist you in the qualification of your applications, establish the welding parameters, design the clamping tools and assist you in the choice of tools. In FSW or FSSW, our expertise will guide you towards the success of your innovative welding projects.


to identify the optimum FSW parameters

Destructive checks of prototype parts

according to ISO 25239 standards (testing of traction, fatigue, corrosion, folding)

Post-FSW Operations Test

surface treatment (OAS or OAC anodizing, nickel plating,
painting), heat treatment, finishing, machining

Non-destructive testing of prototype parts

penetrating liquid (resuage or LPI), X-ray, ultrasound.

Creation of Quality documents


Stirweld welds aluminium friction stir welding

Leading you to the success of your FSW project

Our team of specialists supports you in the implementation of the FSW in your company.

The optimization of the FSW welding parameters allows you to adjust the production of your parts by guaranteeing a perfect and reproducible welding.

The clamping of parts has a significant impact on your production rate and the quality of the weld.

We support you in the adjustment of the welding parameters and in the design of your clamping tools.

FSW Welding parameters

  • Choice of the FSW tool
  • Welding force
  • Tool rotation speed
  • Welding speed
  • Plunge speed


These FSW welding parameters will optimize the part production while assuring a perfect and reproducible weld

how FSW Stirweld tool fonctions
FSW tool deeps vertically

Design of the clamping tool

  • Geometry
  • Number of clamps
  • Clamping force
  • Tool wear
  • Tool path

As part clamping has an impact on your production rate and weld quality, we offer you our know-how for jig design


FSW coaching for my project?

we can guide you in every step of your project

Specification for Friction Welding of Metals
Stirweld meets requirements in greater quality and safety for people, the environment and technology

Process qualification

Possible certification steps :

The DMOS-QMOS approach applied to FSW welding (mainly used in aerospace and aeronautics).

The DMOS – Welding procedure description NF EN ISO 15609. The DMOS lists the welding materials and lists the steps of the welding process:

  • preparation before welding,
  • setting welding parameters,
  • right choice of FSW tool.

The QMOS – Welding procedure qualification occurs during the realization of the welding, carried out in strict execution of the associated DMOS. It certifies the reliability of the weld concerned.

For FSW projects that do not require an aeronautical standardization approach, we apply ISO 25-239.

Stirweld controls every batch of FSW parts


Stirweld FSW experts perform destructive and non-destructive testing during the qualification process of your application.

10 steel after Stirweld's bend test

5754-H111 aluminum weld with XES G10 / 10 steel after bend test.

Stirweld's bend tests according to ISO 25239

Aluminum bend test according to ISO 25239

Stirweld's tests with fracture outside the weld

Tensile test on FSW welded part with fracture outside the weld.



Chief Technical Officer

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