Joining at least two workpieces in abutment to each other involves driving joining element to perform rotational and translational movements to be moved through workpieces

摘要

Joining at least two workpieces (2, 4) in abutment to each other by means of a joining element, comprising driving the joining element, during a joining process, to perform rotational and translational movements to be moved through a first workpiece and into a second workpiece without full penetration of the second workpiece to provide for an integral one-piece joint between the joining element and the second workpiece as a result of friction caused by the movements of the joining element while the workpieces remain in abutment to each other. An independent claim is also included for a joining element for joining at least two workpieces in abutment to each other, comprising a member which is at least partially of rotationally symmetrical or rotational symmetrical shape. The member comprises a body portion of a cross-sectional area which increases in a predetermined direction to provide for a positive interlocking joint with a first workpiece of the at least two workpieces when it is moved through the first workpiece by rotational and translational movements.