Method for the rotational friction welding of plastic parts and device for carrying out the method

Abstract From the Canadian patent

A method for the rotational friction welding of plastics comprises providing a rotationally symmetrical plastic body having an end rim which has a tampering cross-section. The body is set in rotation and as it rotates, it is pressed , against a welding location of a plastic part that is held stationary until plastification, of the pressing surfaces of the plastic part and/or the plastic body is achieved. The rotationally symmetrical plastic body is braked to a standstill after plastifying and is held pressed against the stationary plastic part until the , plastified pressing surfaces solidify. The end rim of the plastic body enters into a conical weld with the stationary plastic part.