MANUFACTURING METHOD OF HEAT EXCHANGER

PROBLEM TO BE SOLVED: To provide a manufacturing method of a heat exchanger by which the water tightness of a passage of cooling water can sufficiently be obtained, and joining machining cost can be reduced by using an aluminum die-casting light in weight and superior in productivity. SOLUTION: The...

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Hauptverfasser:	MATSUMOTO KAZUHIKO, SAWAGUCHI MASA
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS BASIC ELECTRIC ELEMENTS CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS CLADDING OR PLATING BY SOLDERING OR WELDING CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY GENERATION MACHINE TOOLS MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS PRINTED CIRCUITS SEMICONDUCTOR DEVICES SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a manufacturing method of a heat exchanger by which the water tightness of a passage of cooling water can sufficiently be obtained, and joining machining cost can be reduced by using an aluminum die-casting light in weight and superior in productivity. SOLUTION: The method includes a friction stir welding process and a machining process in which a contact face with a power module 1 is formed in a face of a friction stir weld zone 22. A part 57 for use in joining is provided in which a friction stir welding portion of an aluminum die cast lower case 5 is made higher than other casting surface portions, thereby reducing machining expense in the casting surface portions of the machining process. COPYRIGHT: (C)2010,JPO&INPIT