HIGH-SPEED WORM THREADING IN THE USSR

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP80-00809A000600340437-9
• Release Decision: RIPPUB
• Original Classification: C
• Document Page Count: 1
• Document Creation Date: December 22, 2016
• Document Release Date: August 16, 2011
• Sequence Number: 437
• Publication Date: September 12, 1950
• Content Type: REPORT

Sanitized Copy Approved for Release 2011/08/17: CIA-RDP80-00809A000600340437-9
1
HOW
PUBLISHED
WHERE
PUBLISHED
DATE
PUBLISHED
LANGUAGE
CLASSIFICATION CONFIDENTIAL C IV IDENT At
CENTRAL INTELLIGENCE AGENCY REPORT
INFORMATION FROM
FOREIGN DOCUMENTS OR RADIO BROADCAorS CD NO.
Economi-; Technological - Machine tools
Monthly periodical
Moscow
Apr 1950
THIS GOCL?SINT CONTAINS INFORMATION AFFECTING THE NATIONAL DEFENSE
OF THE UNITED STATES WITHIN THE MEANING OF ESPIONAGE ACT ED
M. 3. C., SI AND ]E. AS AMENDED. ITS TRANSMISSION OR THE REVELATION
OF ITS CO NTE NTS IN ANT MANNER TO AN UNAUTHORIIEC PERSON 13 PRO'
II-TED ET LAW. RAPRODUCTION OF THIS FOR. IS PRU..:EITED.
SOURCE
Stanki i instrument, No 4, 1950.
DATE OF
INFORMATION 1950
DATE DIST. j;~Sep 1950
NO. OF PAGES 1
SUPPLEMENT TO
REPORT NO.
HIGH-SPEED WORM THREADING
IN TM USSR
N- V. 01'khovskiy
V. I. Kapitel'man
High-sr.=ed .hreading of large-size worms (4,5 mil.imeter module and larger)
1; dn;k cp th DI -.j0^ =-.Pew-cutting lathe with the aid of a special attachment,
The a_tta^:aneot is mounted on the carriage of the machine, It consists of
a cutting-reel. head with :ix cutters, a reducing gear, and 2.2 kilowatt electric
motor; which are mounted on a common plate.. A flange connects the motor wi.i:h
the reducing gear, Movement from the reducing g:ar to the spindle of the cutting-
tool head 15 trar.smitted by V-belt drive.
The following conditions of cutting have been established: speed of cutting
v a,225 meters per minute; feed per revolution of each cutter s PA 0.08-0,15 mil-
limeters; machi,:ing is accomplished in one pass. Rotation.of the work piece (the
worm s accomplished by the feed movement.
'*c achieve. the required feed in the kinematic chain of the main movement cf
the DIP-300 machine, a reducing gear is included which lowers the number of machine
tco). revolution-. 24 times. The kinematic chain in this case is a circular feed
of the~wprk piece.
For facilitating the process of cutting, three of the six cutters cut the
groove and the other three perform the finishing operation, These cutters are
indt.11,ed.in the body of the cutting-tool head in alternating order. The cutters
are 1,jited with T15K6 hard alloy. The positive rake of the cutters is 4 degrees.
The cutters w:.ll last ?
conditions of cutting.
*i6-epeed;,threading of
times,
STATE
~MY
hours when cutting 20Kh steel, under the above-specified
worms increases labor productivity an average of five
- END -
-1-
NAVY JAI NSRB
AIR FBI
CONFIDENTIAL
Sanitized Copy Approved for Release 2011/08/17: CIA-RDP80-00809A000600340437-9