METHOD AND DEVICE FOR FORMING ELBOW TUBE

PURPOSE:To provide a method and a device for forming an elbow tube that the radius of curvature is almost zero. CONSTITUTION:By using a pair of dies that a groove of half circle shape (6c or 8a) extending to the one side of lateral direction from a vertical hole (6d or 8d) is formed at one hand die...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	SANO KAZUO, NARITA MAKOTO, MICHINO MASAHIRO, WATANABE MITSUO, TANAKA MITSUYUKI, KOIKE MASAZUMI
Format:	Patent
Sprache:	eng
Schlagworte:	AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKINGWITHOUT ESSENTIALLY REMOVING MATERIAL BLASTING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING JOINTS OR FITTINGS FOR PIPES LIGHTING MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES,OTHERWISE THAN BY ROLLING MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL PERFORMING OPERATIONS PIPES PUNCHING METAL SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL TRANSPORTING WEAPONS WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	PURPOSE:To provide a method and a device for forming an elbow tube that the radius of curvature is almost zero. CONSTITUTION:By using a pair of dies that a groove of half circle shape (6c or 8a) extending to the one side of lateral direction from a vertical hole (6d or 8d) is formed at one hand die spotting surface (6a or 8a) and a groove of half circle shape (8c or 6c) extending to the other side from a vertical hole (8d or 6d) is formed at the other hand die fitting surface (8a or 6a), A in the state operating the inner pressure from an inner pressure applying means 22 to the tube stock 24 inserted in the vertical holes (6d, 8d), the compression force is applied with a vertical cylinder device 5 and together the dies (6, 8) are relatively moved to the direction of both grooves of half circle shape (6c, 8c) so as to be laminated with a driving cylinder device 12. The elbow tube of shearing deform is formed with good quality and repeatability by adjusting with increasing and decreasing individually the inner pressure, compressing force and the tensile force corresponding to the diameter, the wall thickness and the quality of material, etc., of the tube stock.