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IS0
INTER NATIONAL ORGAN1 ZATl O N FOR STAN DARD IZATION
IS0 RECOMMENDATION
R 524
HARD METAL WIRE DRAWING DIES
INTERCHANGEABILITY DIMENSIONS OF PELLETS AND CASES
1 st EDITION
November 1966
COPYRIGHT RESERVED
The copyright of IS0 Recommendations and IS0 Standards
belongs to IS0 Member Bodies. Reproduction of these
documents, in any country, may be authorized therefore only
by the national standards organization of that country, being
a member of ISO.
For each individual country the only valid standard is the national standard of that country.
Printed in Switzerland
Also issued in French and Russian. Copies to be obtained through the national standards organizations.
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BRIEF HISTORY
The IS0 Recommendation R 524, Hard Metal Wire Drawing Dies - Interchangeability
Dimensions of Pellets and Cues, was drawn up by Technical Committee ISO/TC 29, Small Tools,
the Secretariat of which is held by the Association Française de Normalisation (AFNOR).
Work on this question by the Technical Committee began in 1950 and led, in 1963, to the
adoption of a Draft IS0 Recommendation.
In April 1964, this Draft IS0 Recommendation (No. 670) was circulated to all the IS0
Member Bodies for enquiry. It was approved by the following Member Bodies:
Australia France Poland
Austria Germany Portugal
Belgium Greece Spain
Brazil Hungary Sweden
Canada India Switzerland
Chile Italy Turkey
Colombia Korea, Rep. of United Kingdom
Czechoslovakia Netherlands U.S.S.R.
Yugoslavia
Denmark New Zealand
Two Member Bodies opposed the approval of the Draft:
Japan
U.S.A.
The Draft IS0 Recommendation was then submitted by correspondence to the IS0
Council, which decided, in November 1966, to accept it as an IS0 RECOMMENDATION.
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ISOIR 524 - 1966 (E)
I
IS0 Recommendation R 524 November 1966
HARD METAL WIRE DRAWING DIES
INTERCHANGEABILITY DIMENSIONS OF PELLETS AND CASES
1. SCOPE
This IS0 Recommendation relates to hard metal wire drawing dies and gives the main dimensions
for interchangeability of pellets and cases, together with details of marking. It may be supple-
mented later by standardization of the internal dimensions of the pellets, establishment of the
bearing diameter dl in relation to the material to be drawn and the drawing conditions, and a
uniform method of designation.
IS0 Recommendation includes an Appendix Z giving the terminology for characteristic ele-
This
ments of pellets and cases in several languages.
2. INTERCHANGEABILITY
The dimensions given in this IS0 Recommendation have been determined by taking as much
account as possible of existing practice and of the increasingly widespread use of multiple wire
drawing machines.
Although these dimensions are expressed only in millimetres, their adoption by all countries,
including those in which the inch system of measurement is most widely used, should ensure world-
wide interchangeability.
Interchangeability di
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