Pipe element with a trimmed edge for welding onto a carrier

An article of manufacture, comprising:

• a pipe element with a trimmed edge that is welded onto a carrier, wherein the trimmed edge has a first cam with which the pipe element is placed on a surface of the carrier;
• and
• wherein the trimmed edge has at least one second cam with which the pipe element is placed on a surface of the pipe element, so that an air gap remains between the surface of the carrier and the trimmed edge in a region lying between the first cam and the second cam;
• wherein the trimmed edge has at least a third cam with which the pipe element is placed on the surface of the pipe element;
• wherein a line of contact of the trimmed edge with the surface of the carrier in the region of the first cam has a length between 20° and 100°, and/or a line of contact of the trimmed edge with the surface of the carrier in the region of the second and/or third cams is less than 20°;
• and
• wherein the contact in the region of the second and third cams is essentially point-shaped, and wherein the carrier is tubular in shape.