Friction stir
welding
what is it?
Friction Stir Welding is a solid-state joining process. The machine uses a tool to join two facing workpieces without melting the workpiece material. Heat is generated by friction between the rotating tool and the workpiece material. This leads to a softened area, found near the Friction Stir Welding tool. The tool moves through the joint line, therefore it mixes the two pieces of metal. As a result, forges the hot ad softened metal by mechanical pressure, which is applied by the tool.
how does it work?
Watch this video:
benefits of stir friction weld
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No chemicals or fumes or spatter of molten metals
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No more consumables are needed- Fun fact: A threaded pin made of conventional tool steel, e.g., hardened H13, can weld over 1 km of aluminium, and no filler or gas shield is required for aluminium.
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Easily automated on simple milling machines, this means lower setup costs and less training.
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Can operate in all positions (horizontal, vertical, etc.) as there is no weld pool.
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Low environmental impact.
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Superior mechanical characteristics.
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Join dissimilar alloys.
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Dual head capability for faster panel welding.
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Virtually defect-free bonding.
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