Hermetical joint structure of two members made of different materials and joining method thereof

• Main Authors: INOUE, AKIHISA, NAGASAKA, HIROSHI, TOKAIRIN, AKIRA, YOSHIDA, NAOKI, OSE, KATSUMI, TOMINAGA, RYO
• Format: Patent
• Language: English; French; German
• Published: 06.04.2005
• Edition: 7
• Subjects: BLASTING; COMBINED OPERATIONS; DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MACHINE TOOLS; MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES,RIVETS, BOLTS OR WHEELS; MEASURING; MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE; MECHANICAL ENGINEERING; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; METAL-WORKING NOT OTHERWISE PROVIDED FOR; OTHER WORKING OF METAL; PERFORMING OPERATIONS; PHYSICS; PUNCHING METAL; TESTING; THERMAL INSULATION IN GENERAL; TRANSPORTING; UNIVERSAL MACHINE TOOLS; WEAPONS; WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL

A cylindrical joining member (4) is fitted into a member to be joined (1) that is made of a material different from the joining member (4). Plastic deformation is effected in a soft material of the member (1) to be joined to hermetically join the two members (1,4) together. Joining faces are provided to the two members (1,4) that face and are joined to each other by the plastic deformation and with an elastic deformation pressure in an axial direction. The soft material of the member (1) to be joined, which is located in a circumferential direction of the member, bites into a joining portion (4b,4d) of the joining member (4) by the plastic deformation and with the elastic deformation pressure.