I'm reviewing historical records for our planned defining dimensional control for bracket welding with Fairino FR10 and a gusseted steel support bracket weldment in a robotic welding project review. 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.
Does the inspection procedure define the released condition and reference supports? Check that alongside whether each old measurement says how the assembly was held.
@RobinAli0251 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.
@GraceBrown0929 Have quality and the drawing owner define the acceptance condition. Group the old results by known measurement state; that should make them comparable.
You're right; I overstated that. Grouping exposes one difference. Keep support conditions, fixture revision and process links visible too, including anything unknown.
@RobinAli0251 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.
@GraceBrown0929 Mark it unknown. You can note the recollection separately as something to investigate, but don't turn a probable revision into a recorded fact.
@RobinAli0251 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.
Because the required inspection condition may be after release. Holding a shape under restraint doesn't establish the shape the assembly takes without that restraint.
@RobinAli0251 I've had the drawing owner confirm the released inspection condition and its reference supports. Quality is adding those requirements to the sheet so the measurement state is explicit.
@GraceBrown0929 Where sample links exist, pair incoming fit-up observations with the released measurements. That allows the welding engineer to assess associations in the context of the documented process.
I've found varying incoming fit-up in the traceable records for assemblies that changed shape after release. The association is visible, although it doesn't establish causation.
My review approach is settled: establish the acceptance condition and use measurements with identifiable conditions. I can take that forward while leaving fixture and process changes dependent on specialist assessment.