TUBE PRODUCTION

The disclosure of this invention relates to a method and apparatus for producing tubes from billets by cold working by intermittently rotating the billets to and fro to a predetermined angle wherein the billets are first rotated a number of times in one direction throughout the cold working operatio...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	JOERES P,DT, ZEUNERT F,DT, GERRETZ J,DT
Format:	Patent
Sprache:	eng
Schlagworte:	MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL PERFORMING OPERATIONS PUNCHING METAL ROLLING OF METAL TRANSPORTING
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Beschreibung
Zusammenfassung:	The disclosure of this invention relates to a method and apparatus for producing tubes from billets by cold working by intermittently rotating the billets to and fro to a predetermined angle wherein the billets are first rotated a number of times in one direction throughout the cold working operation and are thereafter rotated a number of times in the opposite direction.