Method and apparatus for forming and welding thin-wall tubing
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 26, 1991
Issued Date -
N/A
app pub date -
Mar 5, 1990
filing date -
Dec 1, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and apparatus for forming thin-wall tubing in a funnel die or with a series of sets of forming rollers. The tubing is then welded by a method and apparatus which includes simultaneous guiding of the both the inner and outer peripheries of the tubing during the welding operation by a mandrel and a sleeve, respectively, so that lack of rigidity of the tubing is not a limitation. The edges of the tubing are not clamped, but are allowed to 'float' during welding in one embodiment, a water-cooled heat sink is used to remove the heat of welding. The resulting tubing is highly uniform. A wide range of tubing materials can be welded and thin-wall tubing of nearly any desired length or wall thickness can be produced.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully