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Can the FSW technique be used even if the tool is not correctly inclined when moving along the weld?

Yes, it is no longer necessary to tilt the tool during the FSW process with our technology.
Other friction welding processes will require a tool tilt angle to be set to improve the surface finish of the joints. The purpose of the tilt is to keep the material being welded below the shoulder and thus limit burrs.
By choosing Stirweld’s FSW tool for your welds, you can do away with this tilt parameter. The shoulder of our FSW tool is designed as a counter-cyclical spiral. This feature allows it to push the material flow towards the centre to keep it in the joint area.