PAR Systems

The Impacts of Friction Stir Welding

What you need to know: Factors that impact the quality of your friction stir weld.

There are many factors that will impact your friction stir weld. It is important to know what these factors are and take them into consideration before finalizing the design of your friction stir welding equipment in order to achieve the best result. Friction stir welding is often used for many highly critical applications, such as aerospace, railway and automotive, so it is of utmost importance that the weld be of the highest quality.

Factors that have significant impact on FSW

  • Pin tool design
  • Weld parameters and the accuracy to which they are controlled
  • Start of Weld Procedure (Plunge or Pinching)
  • Position of the pin tool and/or shoulders during the weld (load or position control)
  • Pin Tool Exiting Procedure
  • Spindle speed
  • Travel speed
  • Fixtures/Part Clamping (fit-up)
    • Component to component match-up
    • Stiffness
    • Reaction structure
    • Loads
    • Deflection compensation
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