Apparatus and method for forming fins on a tube surface

Details Apparatus and method for forming fins on a tube surface Apparatus and method for forming fins on a tube surface

1982-01-13

1984-01-24

Larson, Lowell A.

Metal deforming

By use of tool acting during relative rotation between tool...

During rotation of work

72104, B21H 304

Patent

active

044268688

ABSTRACT:
Apparatus and method for forming fins on a tube surface. The apparatus comprises a plurality of roller assemblies and each roller assembly includes first and second spaced apart sets of discs. The first set of discs have progressively increasing outside diameters in a forward direction. The second set of discs includes a first subset of discs having outside diameters generally equal to the outside diameter of the forwardmost disc in the first set, and a second subset of discs having progressively increasing outside diameters in the forward direction, with the outside diameter of the forwardmost disc in the second subset generally equal to the outside diameter of the forwardmost disc in the first set.

REFERENCES:
patent: 2645954 (1953-07-01), Pfingston
patent: 3600922 (1971-08-01), Schmeling et al.
patent: 4159739 (1979-07-01), Brothers et al.
patent: 4168618 (1979-09-01), Saier et al.

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