Method of manufacturing a hollow metal body

The subject matter of the present invention is a method of manufacturing, in a tool mold provided with a final contour as desired, a hollow metal body the cross-sectional shape of which varies in the longitudinal direction, an internal pressure being applied to a tubular hollow body with approximate...

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Bibliographische Detailangaben
1. Verfasser:	AMBORN PETER
Format:	Patent
Sprache:	eng
Schlagworte:	AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKINGWITHOUT ESSENTIALLY REMOVING MATERIAL GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES,OTHERWISE THAN BY ROLLING MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL PERFORMING OPERATIONS PUNCHING METAL TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TRANSPORTING WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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Beschreibung
Zusammenfassung:	The subject matter of the present invention is a method of manufacturing, in a tool mold provided with a final contour as desired, a hollow metal body the cross-sectional shape of which varies in the longitudinal direction, an internal pressure being applied to a tubular hollow body with approximately uniform initial wall thickness, the tubular hollow body having the highest temperature in the zones of greatest deformation, the temperature in these zones being reduced once the hollow body fits against the wall of the tool mold, the temperature being subsequently increased in zones with lower degrees of deformation.