Friction welding appts has a projecting and rotating pin to act on the workpiece materials at the welding zone to follow the welding line and soften the materials to fuse together and bond sheet plates with complex shapes

摘要

The friction welding appts. (10), to bond two workpieces (11,12) together, has a projecting pin (16) which acts on the bonding zone between the workpieces (11,12) by a rotary drive on the axis (14) at the end (15) of the pin (16) away from the welding zone. Where the rotating pin (16) is in contact with the workpiece materials, at the welding zone, the material is softened by the friction heat to fuse together. The workpieces (11,12) are between two limits (19,21) formed by an upper shoulder (18) around the welding end (17) of the pin (16) and a lower shoulder (20) of a larger dia. than the pin (16). At least one limit (19,21) has movement for the welding operation, acting with a given force.