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RU

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2 193 951

(13)

C2

(51)

IPC

(21) (22)

Application

2000128957/02, 2000-11-20

(24)

Start date

2000-11-20

(22)

Actual filing date

2000-11-20

(45)

Published

2002-12-10

(72)

Inventor

Lakirev S.G.Suvorova E.A.

(73)

Holder

Juzhno-Ural'Skij Gosudarstvennyj Universitet

CENTERING TOOL FOR WORKING ACCURATELY COORDINATED OPENINGS Russian patent published in 2002 - IPC

Abstract RU 2193951 C2

FIELD: machine engineering, tools for number program control machine tools and working centers. SUBSTANCE: tool is in the form of crosspiece free drill and it includes stem and cutting portion. In order to enhance accuracy for coordinating openings, cutting portion is in the form of double-start cone helix with apexes arranged along radius. Tool may be buildup one. It may have cutting portion in the form of two cylinder halves fastened in turning of stem, centered by means of ring and mutually joined by faces coinciding with planes passing from tool periphery to tool axis. EFFECT: improved design. 2 cl, 3 dwg

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RU 2 193 951 C2

Authors

Lakirev S.G.

Suvorova E.A.

Dates

2002-12-10—Published

2000-11-20—Filed

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