Friction stir welding process

A stationary shoulder 10, e.g. for a friction stir welding (FSW) a T joint, can have a chamfered leading edge 110 and/or a radiused trailing edge 120. The chamfer angle may be in the range 40° to 50°. The chamfered leading edge 110 may be 10 mm to 20 mm. The radiused trailing edge 120 may have a rad...

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Bibliographic Details
Main Authors John Chippendale, Howard James Price
Format Patent
LanguageEnglish
Published 22.09.2021
Subjects
CLADDING OR PLATING BY SOLDERING OR WELDING
CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING
MACHINE TOOLS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
PERFORMING OPERATIONS
SOLDERING OR UNSOLDERING
TRANSPORTING
WELDING
WORKING BY LASER BEAM
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Summary:A stationary shoulder 10, e.g. for a friction stir welding (FSW) a T joint, can have a chamfered leading edge 110 and/or a radiused trailing edge 120. The chamfer angle may be in the range 40° to 50°. The chamfered leading edge 110 may be 10 mm to 20 mm. The radiused trailing edge 120 may have a radius from 10 mm to 20 mm. Two FSW tools, each comprising a stationary shoulder (10, 20 fig 5B) with a chamfered front edge and a radiused rear edge, may be used concurrently in welding corners of a T-joint. Each tool may have a rotating probe which can be plunged into a workpiece, when performing each pass of a welded joint (fig 5B).
Bibliography:Application Number: GB20210000400