PTOCESS OF PRODUCING LAMINAR STRUCTURE BY BONDING OF SHEET METAL BLANKS AFTER PRELIMINARY BONDING

• Main Authors: ENDO HIDEO, NAKAGAWA, TAKEO, TODA, MUNETAKA
• Format: Patent
• Language: English; Korean
• Published: 16.08.2000
• Edition: 7
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CLADDING OR PLATING BY SOLDERING OR WELDING; COMBINED OPERATIONS; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; MACHINE TOOLS; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; METAL-WORKING NOT OTHERWISE PROVIDED FOR; OTHER WORKING OF METAL; PERFORMING OPERATIONS; PUNCHING METAL; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; SOLDERING OR UNSOLDERING; TRANSPORTING; UNIVERSAL MACHINE TOOLS; WELDING; WORKING BY LASER BEAM; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL

본 발명은 서로 중첩되는 금속판들을 포함하는 적층 구조체를 제조하는 방법에 관한 것으로서, 다수의 금속판과 각각 대응하며 동일 두께값을 갖는 다수의 판 금속 소재가 서로 중첩되는 적층 구조체 제조방법에 있어서, (a)판 금속 소재들중 최단부 판 금속 소재를 포함하는 두 개의 인접하는 판 금속 소재를, 다수의 판 금속 소재들 각각이 최단부 판 금속 소재로서 두 개의 인접하는 판 금속 소재들중 다른 판 금속 소재상에 중첩될 때, 두 개의 인접하는 판 금속 소재들의 소정 부분들에서 용접함으로써 예비접합을 행하는 단계와; (b) 예비접합 후에, 최단부 판 금속 소재의 노출면상에 형성된 레이저 빔 스폿이 절단선을 따라 이동되도록, 레이저 절단장치로부터 발생된 레이저 빔에 의해, 소정 절단선을 따라 최단부 판 금속 소재를 절단하는 단계를 포함한다. Process of producing a laminar structure including metal sheets which are superposed on each other, wherein a plurality of sheet metal blanks corresponding to and having the same thickness values as the metal sheets, respectively, are superposed on each other, the process comprising the steps of (a) effecting preliminary bonding of two adjacent sheet metal blanks including an endmost one of the sheet metal blanks, by welding at predetermined portions of the two adjacent sheet metal blanks, when each of the plurality of sheet blanks is superposed as the endmost sheet blank on the other of the two adjacent sheet metal blanks, and (b) cutting the endmost sheet metal blank along a predetermined cutting line, after the preliminary bonding, by a laser beam generated from a laser cutting apparatus such that the laser beam spot formed on an exposed surface of the endmost sheet blank is moved along the cutting line.