Method for producing ultra thin wall metallic tube with cold...

Details Method for producing ultra thin wall metallic tube with cold... Method for producing ultra thin wall metallic tube with cold...

2011-03-01

2011-03-01

Ross, Dana (Department: 3725)

Metal deforming

By use of roller or roller-like tool-element

With tool inside hollow work

C072S096000, C072S214000

Reexamination Certificate

active

07895870

ABSTRACT:
An exemplary embodiment of the invention provides a method for producing an ultra thin wall metallic tube by cold working method with significant wall thickness reduction. In a method for producing the metallic tube with a cold pilger mill according to the invention, cold rolling is performed while tube diameters are being expanded using rolls having tapered groove dies whose calibers increase from an engaging entry side toward a finishing exit side. In a method for producing the metallic tube with a drawing machine according to the invention, cold drawing is performed while the tube diameters are being expanded using a solid die whose calibers increase from an engaging entry side toward a finishing exit side and a plug of a tapered mandrel bar whose diameters increase from an entry side of the die toward an exit side. In the metallic tube producing method, a maximum diameter of the plug or tapered mandrel bar may be larger than an outside diameter of the mother tube.

REFERENCES:
patent: 3416346 (1968-12-01), Arrington
patent: 4006618 (1977-02-01), Yanagimoto et al.
patent: 4658617 (1987-04-01), Peytavin
patent: 4866968 (1989-09-01), Cellier et al.
patent: 4966022 (1990-10-01), Stinnertz
patent: 5533376 (1996-07-01), Wetzels et al.
patent: 5946365 (1999-08-01), Drillon et al.
patent: 6718811 (2004-04-01), Drillon et al.
patent: 7140226 (2006-11-01), Wu
patent: 57-044429 (1982-03-01), None
patent: 61219418 (1986-09-01), None
patent: 01-192405 (1989-08-01), None
patent: 07-199507 (1995-08-01), None
patent: 432945 (1979-02-01), None

Affiliated with

Also associated with

Rating

Method for producing ultra thin wall metallic tube with cold... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for producing ultra thin wall metallic tube with cold..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for producing ultra thin wall metallic tube with cold... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2719675