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logo Stirweld France 2021
  • Stirweld Products
    • FSW HEADS
      • FSW standard head V3
      • FSW head with retractable pin
      • FSW Spindle for robot
      • Stirweld FSW machine
    • FSW TOOLS
      • High strength aluminium
      • Standard aluminium
      • Aluminium silicon
      • Aluminium steel
      • Aluminium copper
      • Stirweld Tool Holder
      • FSW tools catalogue
    • FSW ACCESSORIES
      • Temperature measurement
  • FSW Services
    • FSW prototyping
    • FSW clamping system
  • FSW Technology
    • FSW process
    • Principles & Trends
  • FSW Applications
    • Liquid cold plates
    • Heat sinks for e-mobility
    • Aluminium tank
    • Copper applications
    • FSW stiffened panels
    • Other FSW applications
    • FSW Applications
  • FSW resources
    • ARTICLES
      • FSW: a cost-killer in the aeronautics industry
      • How to choose FSW tool for my application
      • 4 essential elements for high quality FSW welding
      • More
    • WHITE PAPERS
      • Thermal Management: FSW liquide cold plate
      • FSW x Rheocasting
      • FSW Water heat sink for e-mobility
      • More
    • WEBINARS
      • FSW: all you need to know about aluminium welding
      • Thermal management: liquid cold plate & FSW
      • FSW: die casting heat sink for e-mobility
      • More
    • VIDEOS
      • FSW spindle for robot
      • Liquid cold plates welded by FSW
      • Satellite thermal Management
      • More
  • About
    • Who is Stirweld
    • FAQ
  • Contact
  • EnglishEnglish
    • FrançaisFrançais
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How deep is the tool inserted into the material?

The depth of tool penetration is one of the main parameters of the FSW process to ensure the quality of the weld. For this purpose, it is necessary to carry out prototype tests in order to define the welding parameters as well as possible. One of these indicators is the force exerted (in kN) on which the penetration depth of the tool depends.
The penetration depth will depend on the force exerted during the welding operation but also on the thickness of the parts to be welded.
It is essential that the pin of the FSW tool penetrates the entire length of the workpiece. This ensures that the shoulder rubs against the workpiece and generates the heat required for mixing.
The penetration depth is the lowest point of the shoulder below the surface of the welded part. The depth must be correctly set to ensure the necessary downward pressure for the FSW tool to fully penetrate the welded joint.
A precise study will define the penetration depth of the FSW tool according to its application to ensure an optimal weld.

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