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2 014 972

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C1

(51)

IPC

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Application

5003675/08, 1991-07-17

(22)

Actual filing date

1991-07-17

(45)

Published

1994-06-30

(72)

Inventor

Nagajtsev V.F.Nagajtsev P.V.Sidorova L.A.Kukhtik T.V.

(73)

Holder

Aktsionernoe Obshchestvo Otkrytogo Tipa

METHOD FOR THREAD CUTTING Russian patent published in 1994 - IPC

Abstract RU 2014972 C1

FIELD: metal machining. SUBSTANCE: method involves introduction of cutting blade of tap into longitudinal grooves cut preliminarily in walls of machined item. Then tap is revolved. Number of tap revolutions is determined by definite equation. Tap has elastic cutting blades. EFFECT: improved quality of cut thread, when machining high-strength materials. 3 dwg

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RU 2 014 972 C1

Authors

Nagajtsev V.F.

Nagajtsev P.V.

Sidorova L.A.

Kukhtik T.V.

Dates

1994-06-30—Published

1991-07-17—Filed

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