Method and apparatus for sizing and cutting tubing

Details Method and apparatus for sizing and cutting tubing Method and apparatus for sizing and cutting tubing

1991-11-04

1993-04-13

Phan, Hien H.

Metal working

Method of mechanical manufacture

Heat exchanger or boiler making

29413, 29417, 29890053, 225 965, 225103, B26F 300, B23P 1526

Patent

active

052011178

ABSTRACT:
Flat tubing is fed from a continuous supply into an embossing station and then into a cutting station and is briefly stopped periodically for an operation in each station. The embossing station has embossing dies for forming a transverse groove in the tube where a cut is desired and for reducing the tube perimeter dimension adjacent the cut to a required size. At the cutting station grippers engage the tubing on either side of the groove and bend the tubing to separate it at the groove.

REFERENCES:
patent: 1106741 (1914-08-01), Slick
patent: 2222842 (1940-11-01), Humphrey
patent: 2444463 (1948-07-01), Nordquist
patent: 3470775 (1969-10-01), Marcovitch
patent: 3866449 (1975-02-01), Wakabayashi et al.
patent: 3877625 (1975-04-01), Brock
patent: 3913207 (1975-10-01), Frey
patent: 3913374 (1975-10-01), Esser et al.
patent: 4541157 (1985-09-01), Tsushima et al.
patent: 4719967 (1988-01-01), Scarselletta
patent: 5133492 (1992-07-01), Wohrstein et al.

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