(SANITIZED)UNCLASSIFIED SCIENTIFIC ARTICLES TRANSLATED FROM EAST GERMAN PUBLICATIONS(SANITIZED)

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP81-01043R002500110013-4
• Release Decision: RIPPUB
• Original Classification: C
• Document Page Count: 5
• Document Creation Date: December 23, 2016
• Document Release Date: October 29, 2013
• Sequence Number: 13
• Publication Date: June 10, 1958
• Content Type: REPORT

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DA INTELLIGENCE REPORT Fr NTRY REPORTED ON
(Use this lam wily Its aceardarce GDR
50X1-HUM
DATE OF REPORT
10 jun 58
SUBJECT an$111 o
(Photocopy & microfilm) (GDR) (C)
i SU a1 MARY & Report DOWNGRADING DATA CANNOT BE PREDETERMINED
1. Transmitted herewith is an Snglish language digest which summarized the arsa
Iattiaes of interest contained in the following GDR pu.blicatit)ssi. cltd Sept 57, -In the
field of Production Engineering:
a. Fertigungstechnik
b. Giessereitechnik
c. Schwa is ste chnik
2, Data collected by ATLO eam attached 522 MI Bn
DIST)ZMUTIGN BY CEIGINCOR: none.
NOTE Reproduction of this document In whole tr In CLASSIFIC
part is prohibited. if SECRET at 'FOP SECRET, ext
with !,:emilsaion of the issuing office. All requests, for
it-then i to reproduce will he directed to the Assistant
Chief tf Staff, G-2. Department of the Army.
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Declassified in Part - Sanitized Copy Approved for Release @ 50-Yr 2014/03/04: CIA-RDP81-01043R00250m1nn11-4
Declassified in Part - Sanitized Copy Approved for Release
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DA INTELLIGENCE REPORT
(Use lids fort only in accordacce
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50-Yr 2014/03/04: CIA-RDP81-01043R002500110013-4
50X1-HUM
4a 'r
NTRY RUPORTED ON
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CATE OF RaFoR7
10 jun 58
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suemm7 TranSMitta/ OI rUDI1CUulou 1 Mir tki.t.:Astc.ca...
(Photocopy & microfilm) (GDR) (G)
61:141MARY & Report DOWNGRADING DATA CANNOT BE PREDETiLRIA NED
I 1. Transmitted herewith is an gnglish language digest which st:mmarized thr, L7.-.111
1 attic.11es of interest contained in the following GDR publications f. cltd Sept 57, tr the
field of Production Engineering:
Fertigungstechnik
b. Giessereitechnik
co Schwa isstechnik
2, Data collected by ATLO Team attached 522
t DISTHBUTICLI BY ORIGINATOR: none
E
NOTE Reproduction of this *0CC.C1C5t n w o
11 part h ptoldbited, if SECRET or TOP SECRIIT. exmTt
; 1701 termisslon of the issuing office. All requests Ear
n?athothy to reprodum will be directed to the Assismnt
Chief of Staff, Department of the Army.
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CONFIDENTIAL
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THAT POINT feed systems are advantageous also in aluminum press#re die
casting, and that severe wear of the die material by the impact of the
concentrated, high-pressure jet of liquid aluminum is not to be feared.
method saves material and finishing cost. 2 figures.
(GT 3. no.9. 198-199. September 1957. GDR)
Useful shop innovations and improvements
The following innovations and improvements originationg in shops and/or
factories of the GDR are compiled and described in short under Werbesserungs
?zti, r-vp
e
,?
.);
Semi-automatic CO2-shielded metal-arc welding
W.Gilde.- Only few of numerous papers recently published on the CO2-shie1ded
metal-arc process deal with the semi-automatic process in particular. Even
these have limited value as the equipment described therein is not available
in the GDR. The semi-automatic process is deemed to be of special importance
due to the conditions prevailing in the GDR. Whereas in fully automatic
welding the Unionmelt (submerged-arc) process is .capable to meet most require-,
ments, the semi-automatic Unionmelt process is not universally applicable.
vorschlage", GT 7, no.91 212-213:
a. Making SiC ingot molds of grindwheel scrap.
b. Core blowing method.
c. Determination of the sintering degree.
d. Toolholder with integral coolant spray system.
e. Sieve type alloying ladle saves nickel in gray iron foundries.
(GT 7. no.8: 212-213. September 1957. GDR)
It is therefore necessary to develop equipment for semi-automatic CO2 weldinCli
under use of components available, and to establish a process technology. The" 1
present status of such work is described. 16 figures.
? ";:1
(SCHW 7. no.9. 330-333. September 1957. Central Institute for Welding, ?
.
Halle-Saale, GDR)
welding
H.-E.Weinschenk, G.Hirschfeld,
require that the arc length be
tions affect the power source.
direct or indirect influences.
-shielded metal-ars
and R.Nitzsche.- Automatic welding processe
maintained at a constant value. Any devia-
Arc length variations may be caused by
With direct influences, wire feed speed is
kept constant, the arc length fluctuation is momentary, and normal conditions?
are reestablished spontaneously. With indirect influences, feed speed is . -A
changed for the duratien of the disturbance, and the power source assumed
a new point of operation. The author compares the response to arc length ?
variations of three welding converters having different characteristkcs. It
is shown that power sources with raising characteristics (if possible of the :
controllable rate-of-rise type) are preferrable for fully automatic welding
processes. 9 figures.
(SCHW 7. no.9. 344-348. September 1957. Central Institute for Welding, Halle- :!
Saale, GDR)
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14"
GDR/Prod.Engng.
September 1957
page 2
"
Status of coll_pressure welding
Dipl.-Ingal.Jacob.- The author initially gives a definition of cold pressure
welding and a survey of the literature on this subject. Clean metallic sur-
faces and a certain degree of deformation of the surfaces to be joined are
essential for trouble-free cold pressure welds. For overlap welds of purest
aluminum, pure aluminum, electrolytic copper, tin, lead, zinc, cadmium,
chrome-nickel steel, and ingot iron the shearing strength-cross section
relationship, the principal Ruge's characteristics, and the Sowter's figures
of merit are given. The method for the joining of different materials is
treated. Pressure butt welding process data are given for pule aluminum and
electrolytic copper. The influences of deformation speed, oxide film. rege-
neration, surface deformation and roughness, and of temperature on the
strength of cold pressure welds are discussed. After the treatment of cold
pressure butt welding experiences and the explanation of the influence of
restrained wire ends, the treatise closes with the more remarkable inter-
pretations of the process theory. 27 figures.
(FT 7. no.9. 393-399. September 1957. Research Institute for Metal Borming,
Zwickau, GDR)
Surface treatment o ra malleable and steel castin s b medium-fre-uenc
induction heating
Ing.G.Hoffmann.-- The author describes the types of wear occurring on castings
and how such wear may be reduced. It is explained what prerequisites must be
fulfilled by the material for effective induction hardening in the above
categories of ferrous castings. Regarding the necessary equipment, the
author refers to other publications. 20 figures.
(FT 7. no.9. 403-407. September 1957. Gollingen, GDR)
Selection of heat treatment and coordination with the manufacturing process
Ing.J.Mainka.- Heta treatment of metals is important for proper perfor-
mance and prolonged service life of parts. Careful consideration must
therefore be given to thermal treatment when planning when planning the
technological processes for the manufacture of a given part. Close cooperation
between the, designer, the technologist, the materials tester, andt the
heat treating shop is essential for trouble-free and fluent production. The
author treats the sequence of operations, the selection of heat treatment
and its effects on such sequence, and finally the viewpoints governing the
selection of materials. I table; 3 figures.
(FT 7. no.9. 407-410. September 1957. Karl-Marx-Stadt, GDR)
Liquid honing
F.:Neuberger, L.Mockel, and L.Rotz.- Liquid honing has come into extensive
use in the US during world war II, and is also known under the names of
"wet blasting" or "vapor blasting". The process has not yet been introduced
in the GDR. Experimental equipment has therefore been developed at the
ResearCh institute" for Metal Forming, Zwickau. By an evaluation of the
respective literature, the authors initially treat the status.reached in
other countries. This is followed by a description of their own tests to
-
applyAhi process to die manufacture. A suitable procedure is proposed, and t
the technical and economic advantages are indicated. 9 figures.
(FT 7. no.9. 413-416. September 1957. Zwickau, GDR)
Point feeding system also in alumnum pressure di.e casting
W.Rubisch.- Plastics working industry uses diecastihg dies having but one
centrally disposed feed of small diameter (point feed) for some time
already. The advantages, particularly where the parts are large plates or.
cup-shaped forms, are described. The author reports on tests whiCh have. shown
? fp5,
Declassified in Part - Sanitized Copy Approved for Release ? 50-Yr 2014/03/04 ? CIA-RDP81-01043R002500110013-4
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Digest of GDR's Technical and Scientifical Periodicals
This DigeSt--covers the following periodicals:
4`. '95777-
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