METHOD OF PRODUCING LARGE ANNULAR WORKPIECES

The object of the invention is to improve a method of producing large annular workpieces, in particular annular bands for wear-resistant pressure rollers, by means of a hot-isostatic pressing process such that even larger annular workpieces can be produced. To this end, an annular blank is produced...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SCHUETZE, WOLFGANG, PLAGEMANN, WERNER
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CASTING MAKING METALLIC POWDER MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS,WHEELS, RINGS, BARRELS, BALLS MANUFACTURE OF ARTICLES FROM METALLIC POWDER MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL PERFORMING OPERATIONS POWDER METALLURGY PUNCHING METAL TRANSPORTING WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:	The object of the invention is to improve a method of producing large annular workpieces, in particular annular bands for wear-resistant pressure rollers, by means of a hot-isostatic pressing process such that even larger annular workpieces can be produced. To this end, an annular blank is produced by the hot-isostatic pressing process with dimensions predetermined by the hot-isostatic pressing plant. The dimensions of the blank are then modified, preferably enlarged, by a hot-shaping process.