← Glossary
Linear Friction Welding
Linear friction welding is a solid-state joining process where two parts are welded by oscillating linear motion and axial pressure. It suits complex geometries like blisks in turbines.
Physicochemical Mechanism of Action
In linear friction welding, two workpieces slide against each other while being pressed together axially. The oscillating movement promotes the melt and improves contact between the parts.
Metallurgical Relevance & Welding Risks
Too little pressure can lead to poor joints and pores, too much pressure deforms or damages the workpiece. The movement speed influences the melting time and the structure.
Workshop Practice & Instructions
Use a firm contact pressure of 100 to 200 N/mm². The movement speed should be between 50 and 100 mm/min. Make sure the workpieces are clean and free of dirt to achieve an optimal joint.
MetallurgieSchweißtechnik