Patent ID: 7469813

Claim:
A method for joining long parts wherein a long part is defined as a part comprising an end, an opposite end, and having a profiled cross-section and a length which is greater than an overall width of the profiled cross-section by friction welding using a device for joining faces of the parts by friction welding, the device comprising first and second clamping arrangements structured and arranged to position ends of the parts against one another, at least one of the first and second clamping arrangements being axially movable with respect to another of the first and second clamping arrangements, and at least one of the first and second clamping arrangements being movable along a direction that is parallel to a part cross-sectional plane defined by an end face of one of the parts, the method comprising: clamping the parts in first and second clamping arrangements, the first clamping arrangement surrounding a portion of the end of one of the parts and the second clamping arrangement surrounding a portion of the end of another of the parts, wherein the first clamping arrangement is closer to the end than the opposite end of the one of the parts and the second clamping arrangement is closer to the end than the opposite end of the other of the parts; arranging the ends of the parts opposite one another, wherein the ends are provided with flat axially normal cross-sectional surfaces; pressing the cross-sectional surfaces against one another and moving an axis of at least one of the parts relative to an axis of another of the parts, such that face areas of the ends are brought to one of an increased temperature or a joining temperature; axially aligning the parts; and; metallically bonding the parts, wherein, during the pressing, the parts do not rotate and at least one of the ends of the parts is moved around a joint axis in a circulating manner.