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1 Mathias Lundin <= Swedish Welding Commission - www.svets.se Swedish Welding Commission - www.svets.se Qualification for Brazing Mathias Lundin, Swedish.

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Presentation on theme: "1 Mathias Lundin <= Swedish Welding Commission - www.svets.se Swedish Welding Commission - www.svets.se Qualification for Brazing Mathias Lundin, Swedish."— Presentation transcript:

1 1 Mathias Lundin <= Swedish Welding Commission - Swedish Welding Commission - Qualification for Brazing Mathias Lundin, Swedish Welding Commission

2 2 Mathias Lundin <= Swedish Welding Commission - Swedish Welding Commission - Review of requirements Technical review Sub-contracting Brazers and operators Brazing coordination Inspection and testing personnel Production equipment Maintenance of equipment Production planning Brazing procedure specifications (BPS) Qualification of brazing procedures Operating procedures Documentation Testing, storage and handling of bra- zing consumables and parent material Heat treatment Inspection prior, during and post brazing Non-conformance and corrective actions Calibration and validation Identification and traceability Quality records Activities to controll = Tasks

3 3 Mathias Lundin <= Swedish Welding Commission - Swedish Welding Commission - Qualification of brazing personnel ISO 13585Brazing — Qualification test of brazers and brazing operators ”brazer ability to by hand manipulate the device for heating following a specification to reproduce a braze joint with acceptable quality” a) a)brazing process b) b)product type c) c)type of joint d) d)parent material group(s) e) e)brazing filler metal type f) f)brazing filler application g) g)dimension (material thickness, outside pipe diameter and overlap length) h) h)filler metal flow direction i) i)degree of mechanization Essential variables => Range of qualification ”operator ability to follow a specification to reproduce a braze joint with acceptable quality” Key elements Standardized test pieces Essential variables Ranges of qualification Requirements for testing Acceptance criteria Requirements for validity Requirements for certificate ISO/FDIS 13585

4 4 Mathias Lundin <= Swedish Welding Commission - Swedish Welding Commission - ISO/PWI xxxxxBrazing – Qualification and specification of brazing procedures (revision of EN 13134) Verifying joint properties brazing process parent material group brazing filler and flux dimensions working temperature etc Essential variables/range of qualification – different compared to personnel Qualification of brazing procedures ”special process – since joint properties and integrity can not be fully verified with NDT after brazing, a procedure needs to be qualified and reproduced during production”

5 5 Mathias Lundin <= Swedish Welding Commission - Swedish Welding Commission - Working order for procedure test Qualification of brazing procedures BPS pBPS Braze test (brazing of standardized test piece) Verifing tests + evaluation (visual testing, NDT, destructive testing) Brazing Procedure Qualification Record (BPQR) closer tollerances for instructing the operator essential variables => range of qualification preliminary “work instruction


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