Method and apparatus for boring a tapered, curved I.D. tubular c

Details Method and apparatus for boring a tapered, curved I.D. tubular c Method and apparatus for boring a tapered, curved I.D. tubular c

1979-03-07

1981-01-27

Hinson, Harrison L.

Turning

Process of turning

82 14, 408 3, 409225, B23B 300, B23B 4106, B23B 3908

Patent

active

042468124

ABSTRACT:
A tapered and curved internal diameter is formed within a tube used as a continuous casting mold by feeding the tube lengthwise along an arc which is tangent to the axis of the spindle of a boring mill having a rotatable boring head arranged within the tube for cutting the interior wall thereof. The boring head and spindle revolve about a fixed axis, but the boring tool or cutter carried by the head is gradually moved transversely of the spindle axis while the tube is advanced along the arcuate path. Thus, the opening within the tube is tapered from one end to the other, and is also curved, wherein the tube is useful as a continuous casting mold and the like.

REFERENCES:
patent: 2672772 (1954-03-01), Bungay
patent: 3367217 (1968-02-01), Franks
patent: 3464314 (1969-09-01), Gladwin
patent: 3617143 (1971-11-01), McKee
patent: 3709624 (1973-01-01), Blank
patent: 3874809 (1975-04-01), Hahn et al.
patent: 4023451 (1977-05-01), Acton et al.
patent: 4061077 (1977-12-01), Gladwin

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