WARM-HOT FORGING DIE

PROBLEM TO BE SOLVED: To provide a warm-hot forging die whose service life can be improved compared with the conventional one. SOLUTION: The warm-hot forging die is formed of an Ni based alloy having a composition comprising, by mass, ≤0.1% C, ≤2.0% Si, ≤2.0% Mn, 35 to 40% Cr, 3.0 to 4.5% Al, and th...

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Bibliographische Detailangaben
Hauptverfasser:	GOMI NOBUYUKI, SHIODA TETSUO, MORIKAWA HIDETO, KONO MASAMICHI, MATSUNAE HIROKI, INOUE KOICHIRO, UEDA SHIGENORI, KOMORI MAKOTO
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS FORGE FURNACES FORGING HAMMERING MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METALLURGY PERFORMING OPERATIONS 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 warm-hot forging die whose service life can be improved compared with the conventional one. SOLUTION: The warm-hot forging die is formed of an Ni based alloy having a composition comprising, by mass, ≤0.1% C, ≤2.0% Si, ≤2.0% Mn, 35 to 40% Cr, 3.0 to 4.5% Al, and the balance Ni with inevitable impurities, and, after being subjected to solution treatment in which solid solution temperature T shown by formula (1)±20°C lies in the range of 1,000 to 1,250°C, is subjected to aging treatment in the range of 700 to 820°C, and has hardness of 45 to 55 HRC: formula (1): T=-348.06+32.04Cr+71.53Al (T: solid solution temperature (°C), and Cr and Al are respective contents (mass%)). COPYRIGHT: (C)2010,JPO&INPIT