MANUFACTURING METHOD FOR ALUMINUM ALLOY FORGING

PROBLEM TO BE SOLVED: To provide a manufacturing method for aluminum alloy forging which does not cause lapping of black film into the forged product and gives good product yield, when a product with three dimensionally complicated shape such as a warped or waved one is forged. SOLUTION: An aluminum...

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Bibliographische Detailangaben
Hauptverfasser:	NAGAMI HIROBUMI, IJIRI TETSUYA, ISURUGI KAORU, KAWAI HIDENOBU
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS CASTING CASTING OF METALS CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES CHEMISTRY FERROUS OR NON-FERROUS ALLOYS FORGE FURNACES FORGING HAMMERING MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METALLURGY PERFORMING OPERATIONS POWDER METALLURGY PRESSING METAL PUNCHING METAL RIVETING TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a manufacturing method for aluminum alloy forging which does not cause lapping of black film into the forged product and gives good product yield, when a product with three dimensionally complicated shape such as a warped or waved one is forged. SOLUTION: An aluminum alloy cast material half-processed in advance by continuous casting is cut in a slant angle to the casting direction, and a sliced material prepared is forged as a work piece with a metal die having the warped or waved face. A cross-sectional shape of the cast material is made similar to that of the target product. In this process a cast material with a smaller cross section can be used as a forging work piece so that it improves production yield, enables use of a work piece for forging with less structural defect and improves mechanical properties and reliability of the forged product. COPYRIGHT: (C)2004,JPO&NCIPI