Method for manufacturing metal-based cylindrical material and back pad jig used therefor

• Main Authors: ANO GENKI, IWAMOTO YUICHI, MIYAZAWA TOMOAKI, MARUKO TOMOHIRO
• Format: Patent
• Language: Chinese; English
• Published: 29.03.2022
• Subjects: CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; SOLDERING OR UNSOLDERING; TRANSPORTING; WELDING; WORKING BY LASER BEAM

The purpose of the present invention is to provide an integrated high-quality metal-based cylindrical material that is not affected by compression and stretching that occur when a metal-based sheet material is formed into a cylindrical shape, by the difficulty in processing the cylindrical shape, and by the processing accuracy of the end surface of the metal-based sheet material. This method for manufacturing a metal-based cylindrical material has: a step (A) for forming a slit-attached cylindrical body provided with at least one slit that extends from one end surface to the other end surface of a cylindrical body section comprising at least one metal-based plate material, and a step (B) for forming a slit-attached cylindrical body provided with at least one slit that extends from one end surface to the other end surface of a cylindrical body section comprising at least one metal-based plate material; a step B of forming a cylindrical body with a filling material, the cylindrical body with the filling materia