| Tooling phase | DFM, prototype tool, pilot tool, or production tool | A learning tool, pilot-intent tool, and production tool can differ in tool steel, cavity strategy, maintenance, evidence package, cost, and revision control. |
| Supported part families | AFPM stator rings, segmented stator blocks, YASA teeth, 3D flux pole pieces, compact yokes, and special SMC electromagnetic parts | Shape support depends on compaction direction, green strength, density target, ejection access, and buyer acceptance criteria. |
| Compaction route review | Single-direction, multi-level, segmented, or hybrid tooling feasibility discussion | Press direction, powder fill, punch access, die split, compaction ratio, ejection, and green-part handling must be reviewed together. |
| Press and equipment-fit planning | 100-240 ton and higher press-fit discussion when part envelope, density target, and tooling layout require it | Treat tonnage as a drawing-dependent tooling review item, not as a public promise that every part can be made on a specific press. |
| Part envelope review | OD 30-800 mm; ID 25 mm min.; axial height 5-110 mm when applicable | Large rings, tall teeth, thin walls, and segmented teeth create different filling, ejection, inspection, and handling risks. |
| Fragile-feature risk map | Thin teeth, deep slots, sharp transitions, high aspect ratios, undercuts, side-wall taper, root radius, air-gap face, and segment edge | Demolding microcracks and chipped edges are usually controlled by geometry, ejection route, draft/radii, green strength, and inspection criteria. |
| Density and green strength | Material and geometry dependent; 7.4-7.6 g/cm3 density target discussion where route allows | Density uniformity affects magnetic performance, tool wear, crack risk, sample strength, and repeatability from prototype to pilot. |
| Ejection and release control | Ejector surface, witness-mark tolerance, air-gap face protection, draft, corner relief, and handling route by drawing | The tool should be reviewed around how the green part leaves the die, not only around the final solid model. |
| Tooling commercial boundary | Tool cost, sample charge, inspection charge, ownership, storage, maintenance, tool-life assumption, and revision-trigger rule | Procurement can compare tooling quotes only when hidden sample, maintenance, rework, and ownership assumptions are exposed. |
| Post-process allowance | Machining allowance, thermal process, coating, corrosion protection, deburr/chip criteria, and packaging method | Post-process needs can alter datum choice, surface condition, density measurement, and sample acceptance. |
| Trial sample release evidence | Sample IDs, FAI, CMM/3D scan, CTQ report, density or weight baseline, visual chip/burr notes, optional magnetic data, and packing note | The first tool loop should release evidence tied to drawing revision and buyer acceptance criteria, not loose samples alone. |
| Pilot transfer readiness | Accepted revision, remaining risk list, inspection method, maintenance plan, packaging rule, pilot quantity, and change-control gate | A prototype tool should not be treated as pilot-ready unless its evidence, maintenance, revision, and volume assumptions are documented. |