Review High-Precision Machined Parts Against the Order
High precision machined parts should be checked against the approved drawing and quote, not a general claim of micron-level accuracy. Before accepting a shipment, confirm the part identity, revision, material, finish, critical dimensions, and the inspection records agreed for the order.
Use a Receiving Checklist
- Match the part number, lot label, and drawing revision to the purchase documents.
- Check that material and finish match the approved specification.
- Review measurement records for the critical dimensions listed in the RFQ.
- Confirm the report uses the correct units and datums.
- Check packaging and part segregation when different revisions or lots are present.
If measurement records are required, define their scope and timing before the order. The precision supplier inspection guide explains how to agree those details with a supplier. For part requirements, see precision CNC machining parts.
Resolve Discrepancies with the Controlled Revision
Compare a result with the agreed drawing revision and acceptance method. If a measurement is outside the requirement, record the feature, measured result, lot, and document revision and contact the supplier using the agreed corrective-action process. Do not approve a substitution or revised tolerance without the responsible project owner.
Часто задаваемые вопросы
How should I check high-precision machined parts?
Use the approved drawing, part number, revision, material, finish, critical dimensions, and agreed measurement records.
Are measurement reports automatically included?
No. State the required dimensions, report format, sampling basis, and timing in the RFQ and confirm them in the quote.
What if a report uses different units?
Resolve the unit difference before acceptance. Keep the drawing, quote, and report on a consistent basis.
Can a supplier change a tolerance after production?
Any change must be reviewed and approved by the responsible project owner through a controlled revision before acceptance.
What should I do if parts do not meet requirements?
Document the affected part, lot, feature, result, and revision, then use the agreed supplier notification and corrective-action process.