METHOD FOR JOINING METAL COMPONENT, METHOD FOR MANUFACTURING JOINT COMPONENT, AND JOINT STRUCTURE OF METAL COMPONENT

• Main Authors: TOBITA SHUNSUKE, IIZUKA EIJI
• Format: Patent
• Language: English; Japanese
• Published: 09.08.2022
• Subjects: MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORMING OPERATIONS; PUNCHING METAL; TRANSPORTING; WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL

To provide a caulking joint technique using burring processing which can secure sufficient joint strength without complicating a structure of a mold.SOLUTION: A method for joining a metal component caulks and joins a flange part 2A formed by burring processing, of plate-like parts of a plurality of metal components. The method includes a notch formation step 102 of forming a notch 2b on a surface facing a rising direction of the flange part 2A by burring processing in an area ARA where the flange part 2A of a caulking material 2 is formed, before a burring step 103, wherein the notch 2b is formed so as to continuously or intermittently surround a lower hole 2a in a circumferential direction of the lower hole 2a.SELECTED DRAWING: Figure 6 【課題】金型の構造を複雑化することなく、十分な接合強度を確保できる、バーリング加工を用いたかしめ接合の技術を提供する。【解決手段】複数の金属部品の板状部を、バーリング加工で形成されたフランジ部２Ａをかしめて接合する金属部品の接合方法である。バーリング工程１０３の前に、かしめ材２のフランジ部２Ａを形成する領域ＡＲＡにおける、バーリング加工でフランジ部２Ａの立ち上がり方向を向く面にノッチ２ｂを形成するノッチ形成工程１０２を有し、ノッチ２ｂは、上記下穴２ａの周方向に沿って連続して又は断続的に当該下穴２ａを囲むように形成される。【選択図】図６