Method and apparatus for advancing tubing into a draw die

Details Method and apparatus for advancing tubing into a draw die Method and apparatus for advancing tubing into a draw die

1994-06-20

1996-01-30

Crane, Daniel C.

Metal deforming

With cleaning, descaling, or lubrication of work or product

Lubricating

72274, 72284, 72283, B21C 900

Patent

active

054872928

ABSTRACT:
The invention is directed to a method and apparatus for advancing tubing into a draw die in reducing the diameter of the tubing. The tubing is advanced forward through opposed rotating tolls which apply compressive stress to the tubing and through a close fitting bushing. High pressure lubricant is pumped through a die socket which creates radial compressive stress on the tubing passing through the die socket into the draw die.

REFERENCES:
patent: 2152842 (1939-04-01), Evans
patent: 3292407 (1966-12-01), Poncar
patent: 3602024 (1971-08-01), Sabroff
patent: 3740985 (1973-06-01), Fuchs
patent: 4224818 (1980-09-01), Jones

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