BS 3821-2:1974
Current
The latest, up-to-date edition.
Specification for hardmetal dies and associated hardmetal tools As-sintered pellets and finished dies for drawing round wire
Hardcopy , PDF
English
29-07-1974
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Foreword
Specification
1 General
1.1 Scope
1.2 Definitions
1.3 Symbols
2 Pellet
2.1 Hardmetal grades
2.2 Forms, dimensions and tolerances
3 Case
3.1 Material
3.2 Forms and dimensions
4 Finished die
4.1 General requirement
4.2 Assembly
4.3 Accuracy
4.4 Marking
Appendix
A Information to be given when purchasing hardmetal
as-sintered pellets and hardmetal dies
Tables
1 Dimensions of as-sintered pellets
2 Tolerance on diameter of pellet, d02
3 Tolerance on height of pellet, h02
4 Tolerance on diameter of bearing of pellet, d01
5 Dimensions of pellets and cases
6 Tolerance on diameter of bearing of finished die
7 Maximum tolerable departure from roundness of
diameter of bearing
Figures
1 Symbols for as-sintered pellets for drawing round
wire
2 Symbols for finished dies for drawing round wire
3 Types of pellet
4 Pellet and assembled dies
Shows the dimensions of as-sintered pellets and finished hardmetal dies and certain quality aspects of finished dies for drawing ferrous and non-ferrous round wire. The dies are intended to produce wire up to 12 mm diameter from steel and 13 mm diameter from non-ferrous material.
| Committee |
W/-
|
| DevelopmentNote |
Supersedes 72/33677 DC (07/2005) Reviewed and confirmed by BSI, December 2012. (11/2012)
|
| DocumentType |
Standard
|
| Pages |
14
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
This Part of this British Standard specifies the dimensions of as-sintered pellets and finished hardmetal dies and certain quality aspects of finished dies for drawing ferrous and non-ferrous round wire. The dies are intended to produce wire up to 12 mm diameter from steel and 13 mm diameter from non-ferrous material.
NOTE The titles of the British Standards referred to in this standard are listed on the inside back cover.
| Standards | Relationship |
| UNE-EN ISO 24442:2012 | Identical |
| BS 4276:1968 | Specification for hard metal for wire, bar and tube drawing dies |
| BS 3821-1:1974 | Specification for hardmetal dies and associated hardmetal tools Designation and marking of as-sintered pellets and finished dies |
| BS 1134:1961 | Centre-line-average height method for the assessment of surface texture |
| BS 970-1(1972) : 1972 | |
| BS 3730:1964 | Assessment of departures from roundness |
| BS 4276:1968 | Specification for hard metal for wire, bar and tube drawing dies |
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