Composite structures and methods of manufacturing the same

• Main Authors: KUMON, YASUHIRO, YAMAMOTO, AKITOSHI, UEKADO, MASAKI, OKAZAKI, SHOZO, KOE, SHIGEKI, MATSUMURA, HIROYUKI, MATSUI, SHIGEMOTO, ASARI, HIROATSU, YAMADA, TAKESHI
• Format: Patent
• Language: English; French; German
• Published: 07.10.1992
• Subjects: CASTING; CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES; COMBINED OPERATIONS; CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; FIXED CONSTRUCTIONS; GENERATION; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; MACHINE TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS; MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES,RIVETS, BOLTS OR WHEELS; MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS,WHEELS, RINGS, BARRELS, BALLS; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; METAL-WORKING NOT OTHERWISE PROVIDED FOR; OTHER WORKING OF METAL; PERFORMING OPERATIONS; PERMANENT WAY; PERMANENT-WAY TOOLS; POWDER METALLURGY; PUNCHING METAL; TRANSPORTING; UNIVERSAL MACHINE TOOLS; WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL

A composite structure is manufactured by joining a first material (2) preferably made of a magnetically permeable material having a first joining surface (11a) in which a recess (7) having an overhang surface (6) is formed, to a second material (3) preferably made of an electrically conductive material having a second joining surface (11b), to be joined to the first joining surface (11a) of the first material. On the second joining surface (11b), a protrusion (9) having an outer configuration substantially corresponding to the inner shape of the recess (7) is integrally formed. The first and second materials (2, 3) are firmly mechanically joined to each other by, for example, a casting method, a rolling method, a pressing method, or a method by utilizing a plastic flow of the second material (3).