×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

laser beam welding procedure qualification

laser beam welding procedure qualification

laser beam welding procedure qualification

(OP)
Are most laser beam welding procedure qualifications done in accordance with AWS C7.4 or AWS D17.1?

RE: laser beam welding procedure qualification

Depends on the industrial application.

RE: laser beam welding procedure qualification

As metengr noted, the associated specifications used for qualifying a laser welding procedure can vary between industries and applications. AWS D17.1 is a general specification for fusion welding in aerospace applications, AWS C7.2 is recommended practices for laser beam welding, and AWS C7.4 is process specification and operator qualification for laser beam welding. Your internal process control document and qualification procedure would likely refer to all three of these AWS specs as well as dozens of additional specs from ASTM, AMS, etc. that the AWS specs cross reference.

You can also base your process control document and qualification procedure on ISO specs/standards. Here is a handy chart that lists most of the ISO specs related to various types of fusion welding.

http://www.svets.se/download/18.5746aac213b817dd41...

Hope that helps.
Terry

RE: laser beam welding procedure qualification

(OP)
if this is for aerospace would AWS C7.2/7.4 be more appropriate than D17.1?

RE: laser beam welding procedure qualification

kevlar49-

All three AWS specs are relevant to developing/qualifying your laser weld process. For an aerospace fusion weld AWS D17.1 is the most comprehensive document, while AWS C7.2 and C7.4 are specific to laser welding. I have not read thru AWS C7.4, but I would guess that it provides a guideline for the steps involved in qualifying a laser weld process for an aerospace application. For most aerospace applications, you will be qualifying a weld process that is specific to your particular component and end item/model configuration. And any changes to the component design or weld procedure will likely require you to re-qualify the process. The qualified laser weld process will be controlled by your own internal documentation and CM procedures.

A couple years ago, I went thru this exercise to qualify a friction weld process on a flight critical aircraft drivetrain component. We worked closely with our friction welding source to develop the documentation and qualify the process. We used an ISO specification as a guideline since our welding vendor was already familiar with it. The qualification effort involved writing a detailed manufacturing procedure, producing several representative weld samples based on the written procedure, and then performing metallurgical and mechanical testing on the weld samples to validate the process.

Best of luck to you.
Terry

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources