METHOD OF A MOUNTING OF A METAL SHEET RING ASSEMBLED AND WELDED IN A CARRIER HOOP, TO CONFORM THE ANNULAR COOLING TUBE OF A PISTON OF INTERNAL COMBUSTION ENGINE, AND METHOD TO MANUFACTURE A FIN METAL SHEET RING ASSEMBLED WITH A CARRIER HOOP

摘要

Mounting portion is a cross-section matches the substantially "U" shaped metal sheet consists of a ring, a branch portion free end character "U" is a loop portion of the inner edge of the annular seat on an annular seat formed on the inner surface of the carrier hoop state are positioned and bonded, said support and coupling the annular extending along the sheet and are sealed by respective annular welding beads positioned on the body of the carrier hoop, the internal annular cooling tube which inner surface is made of a metal sheet ring is and forming the radially inner surface of the carrier hoop extending between two annular sheets. The method includes generating a circumferential wall having a folded edge of the branched fin by stamping on the step, the disk for cutting step, the metal sheet to prepare a flat metal sheet having a desired thickness in a circular disc shape, the peripheral comprising by stamping on the configured in the wall creating step cutting and removing the circular bottom surface, a circular edge phase opposite to the edge to take the ring is configured in the cutting and removing step, already present in the branched fin of the first by stamping and forming a second folded edge of the branched fin. The obtained sheet metal ring is configured as an integral body in the cross section is "C" shaped metal sheet corresponding to the different design previously formed the branched pin. ; Mounting the metal seat ring, branch, the carrier hoop, the annular metal sheets, the inner edges, curved portion, an annular weld bead