Meaning
Test jig transfer defines the procedural shift of hardware validation fixtures from supplier development desks to volume manufacturing lines. This mechanical handoff moves calibration routines and fixture alignment data between engineering domains. The transfer boundary stops at the final acceptance sign-off on the production floor, where testing shifts from developmental verification to routine statistical process control.
Fixture Characterisation
Hardware correlation audits verify that parametric drift remains within allowable tolerances during the physical relocation of test fixtures. Electrical contact resistance and mechanical locating pins undergo dimensional measurement before and after shipment to establish a known baseline. Optical alignment targets confirm that placement repeatability matches the original design specification.
Data Protocol
Calibration parameters and limit files accompany the physical hardware through secure digital transfer channels. Software revision control locks the test sequence to prevent unauthorized local edits during initial line bring-up. Error logs from the development phase help operators isolate fixture wear from actual component defects during early production runs.
Validation Boundary
Production readiness depends on matching the measurement uncertainty of the receiving station against the supplier baseline. Gage repeatability and reproducibility studies establish whether the transferred fixture introduces excessive variance into the manufacturing metrics. Acceptance criteria require that gauge capability indices meet plant standards before serial production authorization is granted.
