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About us

Kitkahitsaus Jori Oy provides welding services specialising in the welding of soft materials such as aluminium.The welding process used is Friction Stir Welding(FSW)i.e. "kitkahitsaus" in Finnish.

Kitkahitsaus Jori Oy was established in 2004. Our company is situated in Finland, town called Alajärvi, in the province of South Ostrobothnia. Companies in Alajärvi are well known for their expertise in the aluminium field.

We have designed and built ourselves our own automatic friction stir welding machine. In the same yard we weld aluminium tanks mostly for powder. We can also provide you with MIG and TIG welding for aluminium through our partners.

Friction Stir Welding is a simple welding method where the tool is rotating. The weld is made in the solid phase that is no melting. The FSW tool is a profiled probe, which is rotated and plunged into the joint line. The method is developed and patented by TWI (The Welding Institute) in the United Kingdom.

FSW method is widely used in extending profiles by joining several extrusions side by side. FSW is used for example in the production of aluminium case structures, which enable greater strength in joint lines.

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