I'm reviewing historical records for our planned planning repeatable welding of bracket assemblies with Fairino FR5 and a gusseted steel support bracket weldment in a welded-bracket fabrication workshop.
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.
@MayaAbbott0040 Compare the specified inspection condition and reference supports with the historical sheets. Do individual measurements identify whether the assembly was restrained or released?
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.
@MayaAbbott0040 Ask quality and the design owner to establish the intended acceptance condition, then group historical results by their documented measurement state to support comparison.
@RobinBaker0512 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.
Should a fixture revision remain unknown when a colleague remembers a likely version but no record confirms it? We're disagreeing about whether to fill those gaps.
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.
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.
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.
I can describe the measurement uncertainty better, although the cause of released variation remains open.
Any fixture change still needs a specialist assessment supported by the inspection basis and traceable records.
@MayaAbbott0040 The remaining cause and assessment questions explain the open fixture decision. Improving the measurement basis is useful without claiming those questions are settled.