Defect prevention begins before the first setup. These controls are intended as RFQ and planning checkpoints, not as a substitute for the approved drawing or process plan.
1–2. Revision and datum strategy
Confirm the released revision and identify functional datums. Workholding and inspection should reference a consistent coordinate system through roughing, heat treatment, finishing, and final measurement.
3–4. Stock and thermal sequence
Leave appropriate stock for later operations and plan heat treatment, stress relief, or stabilization before finishing dimensions that are sensitive to distortion.
5–7. EDM details, finish, and evidence
Define electrode or wire-EDM requirements, corner conditions, texture or polishing zones, and the dimensions that require recorded inspection before the component leaves the supplier.
RFQ decision table
| Decision area | What to make explicit |
|---|---|
| 1–2. Revision and datum strategy | Confirm the released revision and identify functional datums. Workholding and inspection should reference a consistent coordinate system through roughing, heat treatment, finishing, and final measurement. |
| 3–4. Stock and thermal sequence | Leave appropriate stock for later operations and plan heat treatment, stress relief, or stabilization before finishing dimensions that are sensitive to distortion. |
| 5–7. EDM details, finish, and evidence | Define electrode or wire-EDM requirements, corner conditions, texture or polishing zones, and the dimensions that require recorded inspection before the component leaves the supplier. |
Official source notes
These sources support the adjacent technical principles. They do not certify ProtoRFQ or replace the standard edition named in the buyer drawing.
- ASME Y14.5 Dimensioning and TolerancingASME · drawing, datum, tolerance, form, fit, function, and interchangeability terminology
- NIST Calibration Services Users Guide: Dimensional MeasurementsNIST · dimensional measurement instruments and metrological reference context