| 1 | AHSS material and grade experience | Advanced high-strength steels vary in strength, ductility, and forming behavior. Tooling designed for one grade or thickness may not transfer directly to another. | Completed part examples showing steel grade, thickness, forming process, and production outcome; material specifications should identify the applicable grade and standard. | Compare experience with the specific grades and thicknesses in the part specification. Do not treat experience with one AHSS grade as proof of capability with all grades. |
| 2 | Formability analysis and simulation | Forming simulation can help identify risks such as thinning, wrinkling, and potential splits before production tooling is finalized. | Simulation reports showing input material data, boundary conditions, predicted risk areas, and correlation with tryout or production results. | Assess whether the supplier validates predictions against physical trials and documents changes made when simulation and measured results differ. |
| 3 | Springback prediction and compensation | Elastic recovery after forming can affect shape and fit, especially in high-strength materials. Compensation is part- and process-specific. | Before-and-after geometry data, compensation records, and measurement results from representative formed parts. | Compare demonstrated dimensional improvement across iterations, using the same measurement method and agreed drawing requirements. |
| 4 | Die design and process engineering | Draw, trim, restrike, and other operations must work together to achieve the required geometry and stable production. | Process plan, operation sequence, die design reviews, and documented checks for material flow, access, and part handling. | Review the supplier’s reasoning for the chosen operation sequence and how design risks are resolved before die build. |
| 5 | Dimensional measurement capability | Consistent inspection is necessary to determine whether a part meets its drawing and to diagnose dimensional variation. | Inspection plans, calibrated equipment records, coordinate-measuring-machine or scanning reports, and measurement-system studies where applicable. | Confirm that the measurement method, datum scheme, and reporting format match the customer’s requirements. There is no single universal tolerance for all stamped parts. |
| 6 | Tryout and dimensional correction | Physical tryout reveals real process effects that may not be fully captured in design or simulation. | Tryout schedules, issue logs, corrective-action records, and inspection results from successive tool iterations. | Compare the clarity of root-cause analysis, response to measured deviations, and evidence that corrections were verified. |
| 7 | Tool materials, wear, and maintenance planning | Tool material and surface choices influence wear behavior and maintenance needs; suitability depends on material, volume, and process conditions. | Tool-material specifications, wear-risk assessment, maintenance instructions, and any relevant production or tool-life records. | Evaluate whether recommendations are supported by comparable applications and include practical inspection and maintenance intervals. |
| 8 | Press and production-process compatibility | Press capacity, shut height, bed dimensions, feed, and handling arrangements constrain how a die can be run. | Press requirements, die-interface drawings, tonnage or load assessments, and documented production-line checks. | Check compatibility against the actual production press and line layout rather than relying on general equipment capability claims. |
| 9 | Quality-system and change control | Controlled documentation helps keep tooling revisions, inspection methods, and production requirements aligned. | Current quality-system certificates where required, revision histories, nonconformance records, and formal engineering-change procedures. | Verify certificate scope and validity directly, and assess how changes are reviewed, approved, and communicated through the program. |
| 10 | Program delivery and technical support | Tooling programs depend on coordinated design, build, tryout, and launch activities, including timely resolution of technical issues. | Milestone plans, staffing and escalation arrangements, issue-response records, and references for comparable program scope. | Compare documented delivery performance and support arrangements against the program schedule, location, and launch requirements. |