Rule of Thumb; Weld Shrinkage

By jon20013 (*****)

Date 05-13-2003 15:32

I know this is a pretty open-ended question (and it may sound stupid)but, having said that, I seem to recall reading some general "rules" of thumb regarding anticipated weld shrinkage for various materials and joint configurations.

I don't need responses saying it depends on joint configuration, restraint, materials, process, etc., of course it does and I think we all understand that.

Just looking for something easy!

By CHGuilford (****)

Date 05-14-2003 16:24

RULE 1: never weld your thumb 'cause it might shrink.

Sorry, I'm overtaken by impulses sometimes. Actually I was thinking you might want to get a copy of the Lincoln - "Procedure Handbook of Arc Welding". There is a section on weld distortion and some math formulas that I have found to come very close to actual results. Other than the above, I don't have any rules of thumb that amount to anything. I usually take a good guess on the first weld and try to compensate from there.
CHGuilford

By S.K.JOSHI Date 06-10-2003 07:27

Dear Guilford
For weld shrinkage you have given 2 good directions
1) Trial weld & compension as per results
2) Lincoln welding procedure handbook.

Can I get the contact address to get 2) above?

By Michael Sherman (***)

Date 06-10-2003 10:52

Call the Lincoln Electic Welding School @ 216-383-2259. They are the ones that sell the all of the educational books.

Mike Sherman
Shermans Welding

By CHGuilford (****)

Date 06-10-2003 13:23

The number I use is 1-216-383-2211. (Sounds like an extention in the same building)

By jwright650 (*****)

Date 06-10-2003 14:03

I see this question has been asked on a few posts now. Also do a search on this BBS for distortion and you should come up with a few other posts about this topic.
John Wright