A PPAP request needs an agreed submission scope, customer requirements and a controlled part revision. The words Level 3 do not turn a generic list into an approved package. Use the customer's applicable PPAP requirements to decide what is submitted, retained, applicable or subject to an approved exception.
Start With the Customer's Submission Requirements
Identify the customer, part number, drawing revision, submission reason, required level and applicable customer-specific requirements. Name the approving representative and the evidence needed before production shipment. If the buyer has not released the requirements, record that gap before promising a complete package.
This guide organizes casting-related evidence into review areas. It is not a reproduction of an authorized PPAP manual or a claim that the headings below are a complete numbered list of its elements.
Design and Change Records
Keep the design record and authorized changes consistent across tooling, process planning, measurement and submission. Identify customer-owned and supplier-owned design responsibilities. Review material, tolerances, functional tests and appearance requirements in the controlled revision.
The package should distinguish a proposed deviation from an approved change. A supplier's internal assumption must not silently replace a drawing requirement.
Process Flow, Risk Review and Controls
Map the actual route from incoming material through casting, treatment if specified, machining, finishing, inspection and shipment. Connect the process flow, risk analysis and control plan so critical risks have corresponding controls and reactions.
For a casting, consider alloy identity, melt and lot traceability, cores, tooling condition, machining stock, heat treatment, internal-quality risks and permitted repair. Include outsourced operations and responsibility for their records where applicable.
Measurement and Dimensional Evidence
Identify the measurement systems, methods and studies required by the customer. Define datums, inspection state and characteristic identification so dimensional results can be traced to the drawing. Agree the required evidence for inaccessible features, thread gauges, checking aids and functional surfaces.
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Send the drawing, target alloy, finishing scope, MOQ, and delivery timing. Bohua will review it like a real sourcing project, not a generic contact request.
A CMM report does not automatically cover every characteristic or prove that all measurement-system requirements have been met. List the method and evidence for each required characteristic.
Material, Treatment and Performance Evidence
Specify which material certificates, foundry analyses, heat-treatment records and tests are required. State specimen origin, lot linkage, test method and acceptance source. Keep component tests distinct from test-bar results and complete-system validation.
For leak, pressure or other functional requirements, identify the tested boundary, conditions, sampling and report format. Do not attach a generic test result from another part as evidence for the submitted revision.
Samples, Checking Aids and Submission Approval
Agree the sample quantity and condition, master-sample handling, checking-aid records and other customer-required evidence. Identify who prepares and approves the Part Submission Warrant and how any open items or interim approvals are controlled.
The supplier and buyer should map every applicable requirement to its record, revision, owner and disposition. That matrix is more reliable than promising a fixed document count without a customer-approved mapping.
Casting PPAP Planning Matrix
| Column | Purpose |
|---|---|
| Requirement/source | Identify the applicable customer or controlled-manual requirement |
| Part/process revision | Link the evidence to what will be supplied |
| Record and owner | Name the document/result and responsible party |
| Submitted or retained | Follow the agreed submission instruction |
| Status/open item | Distinguish complete, pending, not applicable and approved exception |
| Approval | Record customer disposition before the relevant shipment |
FAQ
Does this article replace the customer's PPAP manual?
No. Use the authorized requirements and customer-specific instructions for the actual program.
Does an automotive certificate approve the part?
No. Certification and part approval address different questions. Verify the certificate scope and complete the agreed part-specific approval separately.
What should accompany a PPAP RFQ?
Send the controlled drawing, submission reason, required level, customer-specific requirements, expected quantities and timing through the PPAP RFQ route. Confirm the documentation and validation scope before committing to a package or schedule.
Project CTA
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