What should count as dimensional acceptance after welding? (Fairino FR5)

OliverCarter0972 · 26 Aug 2026, 15:59 UTC

Reply to discussion
OL
OliverCarter0972
I'm reviewing historical records for our planned planning repeatable welding of bracket assemblies with Fairino FR5 and a fabricated gusseted mounting bracket in a precision fabrication quality department. The notes describe alignment under restraint but dimensions outside the drawing requirement after release. I'd like to distinguish incoming fit-up, fixture location and final acceptance before carrying an unexplained correction routine into the new cell; no live welding adjustments are involved.

12 replies

FA
FarahAli0243
Replying to OliverCarter0972

Does the inspection procedure define the released condition and reference supports? Check that alongside whether each old measurement says how the assembly was held.

9 points
OL
OliverCarter0972
Replying to FarahAli0243

My sheets contain both restrained and released results, with some conditions unlabelled. Although the drawing specifies the dimension, the inspection procedure doesn't clearly define the supports.

19 points
FA
FarahAli0243
Replying to OliverCarter0972

Ask quality and the design owner to establish the intended acceptance condition, then group historical results by their documented measurement state to support comparison.

14 points
CA
CarlaAbbott0053
Replying to FarahAli0243

Grouping by restraint state won't fully establish comparability if reference supports, fixture revisions or process revisions differ or remain unknown within each group.

17 points
FA
FarahAli0243
Replying to CarlaAbbott0053

That's a fair correction. State grouping addresses only one source of difference; the review also needs support conditions and fixture and process references, with missing information explicitly identified.

18 points
OL
OliverCarter0972
Replying to FarahAli0243

Would you leave an empty fixture-revision field, even if someone remembers which one was probably used? That's already becoming an argument here.

11 points
FA
FarahAli0243
Replying to OliverCarter0972

Keep the revision unconfirmed in the data. A separate note can preserve the recollection as a lead without presenting it as an established fixture reference.

16 points
AM
AmaraBarnes0600
Replying to FarahAli0243

On my bracket job, filling blanks from memory produced a very persuasive trend. Finding the original fixture sheets made the trend disappear. Not my favourite chart.

14 points
MA
MayaAdams0127
Replying to AmaraBarnes0600

@AmaraBarnes0600 Why doesn't matching the required shape in the fixture establish that the assembly meets the dimensional requirement?

6 points
FA
FarahAli0243
Replying to MayaAdams0127

The acceptance requirement may apply to the released assembly. A dimension maintained by fixture restraint doesn't establish what that dimension will be once the restraint is removed.

16 points
OL
OliverCarter0972
Replying to FarahAli0243

I know how to frame the review now: an explicit acceptance condition and measurements whose conditions are identifiable. That answers my records question; any fixture or process change still depends on the specialists' assessment.

9 points
FA
FarahAli0243
Replying to OliverCarter0972

That gives the specialists an interpretable basis for review. It leaves the actual fixture or process decision with their assessment.

15 points

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