Automotive Applications
Focus on drawing revision, special characteristics, material and batch traceability, tooling and gauges, process stability and repeatability. APQP, PPAP, Control Plan, process capability and Measurement System Analysis apply only when explicitly required by the customer or project.
Rail and Transportation Applications
Focus on supplier qualification, first-article inspection, welding and special processes, traceability, production changes, inspection records and final approval. Safety-critical parts must be evaluated individually.
01Drawing revision and special characteristics
WhatVerify the latest drawing, engineering changes, special-characteristic markings and linked controls.
WhyLoss of revision or characteristic control can create batch deviations, functional risk and incorrect release.
EvidenceControlled drawings, engineering changes, special-characteristic lists and approvals.
02Material, batch and traceability
WhatConfirm continuous traceability between material, part batch, process movement and finished-part marking.
WhyA broken chain prevents isolation, root-cause analysis and definition of any recall scope.
EvidenceMaterial certificates, batch registers, travellers, marking photographs and finished-part trace records.
03Tooling, dies and gauges
WhatCheck identification, condition, calibration, maintenance and revision applicability of tooling, dies and gauges.
WhyWear, loss of accuracy or a wrong revision can repeat the same defect across a batch.
EvidenceTooling registers, calibration or confirmation records, maintenance records and first-piece results.
04First article and process stability
WhatReview first-article results, key parameters, sampling frequency and stability or repeatability in production.
WhyOne conforming part does not prove a stable process; drift can create concentrated downstream defects.
EvidenceFirst-article reports, control records, trend data, capability or sampling results as required.
05Welding and other special processes
WhatVerify supplier capability, personnel, equipment, parameters, materials and approvals for each special process.
WhySpecial-process results cannot normally be fully verified by final dimensional inspection alone.
EvidenceApplicable process documents, personnel or equipment qualifications, batch records and validation results.
06Production change and release
WhatConfirm approval of changes to material, process, tooling, supplier, location or inspection method.
WhyAn uncontrolled change can invalidate the original first-article, PPAP or validation conclusion.
EvidenceChange requests, impact assessments, revalidation or approval documents and final release records.