Review drawing
Identify material, datum structure, functional features and inspection needs.
Precision Ceramic Machining
Precision Ceramic Machining and Drawing Review
Manufacturing support for custom alumina and zirconia parts, from near-net forming and sintering to selective grinding, lapping, polishing and dimensional inspection.
Manufacturing Route
Precision comes from process planning, not a tolerance claim alone
Ceramic components are commonly formed and fired near final shape, then critical features are finished by diamond grinding, lapping or polishing. The right route depends on material, geometry, quantity and which surfaces control function.
Plan near-net shape
Choose a practical forming and firing allowance for the geometry and quantity.
Finish critical areas
Use grinding, lapping or polishing where the function justifies it.
Inspect and document
Agree the measurement method for critical features before production.
Capability Boundaries
How to discuss a 0.01 mm target responsibly
HERUN can review an approximate 0.01 mm tolerance for suitable precision features. This is a project-specific capability target, not a promise that every dimension on every ceramic part can be held to the same value.
Material
Alumina grade and zirconia grade affect shrinkage, grinding behaviour and measurement.
Geometry
Accessible outside diameters and flat surfaces differ from deep bores, thin walls and complex profiles.
Part size
Large, long or slender parts can introduce different straightness, flatness and handling limits.
Surface finish
A finish requirement can change the operation sequence and achievable dimensional result.
Datum structure
The drawing must state how features relate to one another and how the part is measured.
Quantity
Prototype and repeat production may use different process and inspection economics.
Design Review
Common precision features to discuss
| Feature | Typical concern | Useful drawing information |
|---|---|---|
| Outside and inside diameters | Roundness, concentricity and fit. | Datums, mating size and functional clearance. |
| Flat faces | Flatness, parallelism and surface finish. | Working face, mating face and measurement method. |
| Steps and shoulders | Runout, location and grind access. | Reference datum and critical axial relationship. |
| Holes, slots and grooves | Feature size, depth, corner radius and accessibility. | Functional purpose and acceptable radius. |
Have a drawing or a part that needs replacement?
Send the material, critical dimensions, quantity and working conditions. HERUN will review manufacturability before quoting.