Metal deforming – By use of tool acting during relative rotation between tool... – Tool orbiting or rotating about an axis
Patent
1977-09-12
1979-03-06
Larson, Lowell A.
Metal deforming
By use of tool acting during relative rotation between tool...
Tool orbiting or rotating about an axis
72264, B21D 1704
Patent
active
041423925
ABSTRACT:
An internal groove forming apparatus for heat exchanging pipes, having a cylindrical holder adapted to be loosely fitted in a heat exchanging pipe in concentric relationship, and a plurality of groove forming rolling tools arranged on the holder in a plurality of axially spaced, circumferentially oriented rows and rotatably supported on the holder in such a manner that the rolling tools of one of the two adjacent rows are disposed in staggered relationship with respect to those of the other and an imaginary circle circumscribing the rolling tools is interposed between an outer peripheral surface and an inner peripheral surface of the heat exchanging pipe. Axial relative movements of the heat exchanging pipe and the holder enable the rolling tools to form a number of substantially axially oriented grooves on the inner peripheral surface of the heat exchanging pipe.
REFERENCES:
patent: 649341 (1900-05-01), Nevill
patent: 1017569 (1912-02-01), Lewis
patent: 2367226 (1945-01-01), Lonsdale
patent: 2779222 (1957-01-01), Edwards
patent: 3808860 (1974-05-01), Yamaguchi et al.
Miyagi Masahiro
Ochiai Izumi
Wakabayashi Yoichi
Hitachi , Ltd.
Larson Lowell A.
LandOfFree
Internally groove forming apparatus for heat exchanging pipes does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Internally groove forming apparatus for heat exchanging pipes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Internally groove forming apparatus for heat exchanging pipes will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-915875