1 / 5

Qualification for Brazing

Qualification for Brazing. Mathias Lundin, Swedish Welding Commission. Activities to controll. = Tasks. Operating procedures Documentation Testing, storage and handling of bra-zing consumables and parent material Heat treatment Inspection prior, during and post brazing

tamera
Download Presentation

Qualification for Brazing

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Qualification for Brazing Mathias Lundin, Swedish Welding Commission

  2. Activities to controll = Tasks • 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 • 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

  3. 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” ”operator ability to follow a specification to reproduce a braze joint with acceptable quality” Essential variables => Range of qualification Key elements • Standardized test pieces • Essential variables • Ranges of qualification • Requirements for testing • Acceptance criteria • Requirements for validity • Requirements for certificate • brazingprocess • producttype • typeof joint • parent material group(s) • brazing filler metal type • brazing filler application • dimension (material thickness, outsidepipe diameter and overlaplength) • filler metal flowdirection • degreeofmechanization ISO/FDIS 13585

  4. Qualification of brazing procedures ISO/PWI xxxxx Brazing – Qualification and specification of brazing procedures (revision of EN 13134) Verifying joint properties ”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” Essential variables/range of qualification – different compared to personnel brazing process parent material group brazing filler and flux dimensions working temperature etc

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

More Related