Sourcing focus
Each review starts with the application, then works through material, coating, magnetization, validation, origin, and production requirements.
Establish the part and process requirements
Ask how the proposed source will meet the geometry, tolerance, coating, and magnetization requirements. A block, thin ring, motor arc, and custom shaped part create different handling and inspection questions. Resolve exceptions to the drawing before comparing commercial terms or starting samples.
Request evidence tied to the proposed specification
A useful review can include dimensional results, magnetic measurement data, coating information, and the inspection method proposed for the part. Confirm the test location, units, fixture or measurement setup, and acceptance window. General capability statements do not replace evidence for the actual requirement.
Review coating and handling controls
Discuss how coating thickness, edge coverage, chips, cracks, cleanliness, and packaging will be checked for the application. If corrosion, adhesion, or thermal testing is required, define the method and acceptance criteria with the program team. The required evidence should follow the use environment.
Agree on the sample approval boundary
Record which drawing revision and material specification the samples represent, what was measured, and which application tests remain open. A sample that meets a dimensional check may still need magnetic, coating, thermal, or assembly validation before production approval.
Define production records and change communication
Identify the lot records, inspection summaries, material documentation, and packaging checks the program requires. Clarify how changes to material, process, coating, or magnetization will be communicated and reviewed. Confirm any required certification against the relevant site and scope instead of assuming it covers every proposed process.
Keep material composition explicit
Where HRE-Free or Dy/Tb exclusions are required, request documentation for the proposed material and keep it linked to the specification under review. Composition evidence and application performance answer different qualification questions; both should be addressed before an alternate is accepted.