×
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

weld reinforcement grinding

weld reinforcement grinding

weld reinforcement grinding

(OP)
is there any limitation in grinding the welds of shell to shell joints when fabrication of the vessel is based on ASME SecVIII div1? can we flush theweld totally by grinding?

RE: weld reinforcement grinding

Unless things have changed there is not limitation on smoothing a weld.  The caveat is not to thin the material in the area of the weld.
A term sometimes used for this procedure is plannish even though p;annish really refers to hammering or rolling.

It is a require for all our equipment used in polymer manufacture.  We will also planish welds of NDT testing.  Even fillet welds will get smoothed out for PT testing.  



 

RE: weld reinforcement grinding

Yes, as long as you do not violate design minimum wall thickness.

RE: weld reinforcement grinding

I've yet to see a pressure vessel be fabricated yet in our shop where the shell to shell butt joints (welds) weren't ground flush.  It seems to be a pretty standard practice in the industry.

Brian

RE: weld reinforcement grinding

If the weld reinforcement is left in place, then the weld efficiency is no longer 100%- in  full penetration welded butt joints, weld efficiency will be reduced to what I think  back is 90%.

RE: weld reinforcement grinding

Quote (chicopee):

If the weld reinforcement is left in place, then the weld efficiency is no longer 100%- in  full penetration welded butt joints, weld efficiency will be reduced to what I think  back is 90%.

Weld reinforcement is permitted based on the thickness and category of the welds (B&C for butt and other welds) per UW-35 for longitudinal and circumferential joints.

RE: weld reinforcement grinding

yeah,but efficiency suffers.

RE: weld reinforcement grinding

Weld reinforcement has nothing to do with efficency. Maybe you are thinking about Section I? Up untill the 1980's you only got 100% when the reinforcement was removed. Review UW 11 and 12.

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