BS 6944:1988
Current
The latest, up-to-date edition.
Specification for flash welding of butt joints in ferrous metals (excluding pressure piping applications)
Hardcopy , PDF
English
30-09-1988
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Foreword
Committees responsible
Specification
1 Scope
2 Definitions
3 Information and requirements to be agreed and to
be documented
3.1 Information to be supplied by the purchaser
3.2 Requirements to be agreed
4 Welding equipment
5 Materials to be welded
6 Process sequence: general
7 Process sequence: preparation
8 Process sequence: welding
8.1 Overhand
8.2 Clamping force
8.3 Alignment
8.4 Initial end squaring
8.5 Pre-heating
8.6 Flashing
8.7 Upsetting
8.8 Upset current time
8.9 Unclamping
9 Processing sequence: finishing
9.1 Removal of upset material
9.2 Post weld heat treatments
10 Procedure approval
10.1 General
10.2 Monitoring
10.3 Changes affecting approval
10.4 Heat treatment and finished condition
10.5 Sample preparation
10.6 Bend testing
10.7 Macro-examination
10.8 Tensile testing
10.9 Hardness testing
11 Statement of results of procedure approval
12 Production control
12.1 Visual inspection
12.2 Mechanical tests
13 Parameter monitoring
14 Non-destructive testing
15 Weld acceptance criteria
Appendices
A Welding equipment
B Generalized diagram illustrating monitoring
variables
C Types of weld features
Figures
1 Typical information to appear on a flash welding
procedure record sheet
2 Typical information to appear on a flash welding
procedure test report sheet
3 Generalized diagram illustrating monitoring
variables
4 Flash welding features (diagrammatic only)
Requirements for automatic flash welding of ferrous metal sections, excluding tubes, pipes and pipe fittings for pressure applications (covered in BS 4204).
| Committee |
WEE/29
|
| DevelopmentNote |
Supersedes 86/77824 DC (09/2005) Reviewed and confirmed by BSI, November 2012. (10/2012)
|
| DocumentType |
Standard
|
| Pages |
22
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
This British Standard specifies requirements for the automatic flash welding of ferrous metal sections excluding tubes, pipes and pipe fittings for pressure applications, which are covered in BS 4204.
In addition to the definitive requirements, it also requires the items detailed in clause 3 to be documented. For compliance with this standard, both the definitive requirements and the documented items have to be satisfied.
NOTE The titles of the publications referred to in this standard are listed on the inside back cover.
| BS 4204:1989 | Specification for flash welding of steel tubes for pressure applications |
| 02/712630 DC : DRAFT OCT 2002 | BS EN 14587-1 - RAILWAY APPLICATIONS - TRACK - FLASH BUTT WELDING OF RAILS - PART 1: NEW 220 AND 260 GRADE RAILS IN A FIXED PLANT |
| BS 6443:1984 | Method for penetrant flaw detection |
| BS 4204:1981 | Specification for flash welding of steel tubes for pressure applications |
| BS 499-1:1983 | Welding terms and symbols. Glossary for welding, brazing and thermal cutting |
| BS 6072:1981 | Method for magnetic particle flaw detection |
| BS 427-1:1961 | Method for Vickers hardness test Testing of metals |
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