Albero mandrino inox — tornito duro a Ra 0,2 µm
Un albero mandrino in 17-4PH tornito duro in condizione H900, con Ra 0,2 µm sul diametro di tenuta senza operazione di rettifica.
Specifica del particolare
- Settore
- Energy, Oil & Gas
- Processo
- CNC Turning
- Materiale
- Stainless 17-4PH H900
- Tolleranza
- ±0.005 mm
- Finitura
- Superfinished, Ra 0.2 µm
- Quantità
- 300 / year
- Tempo di consegna
- 19 working days
Dati del cliente non divulgati per NDA.
Sfida
The shaft runs a lip seal at 6,000 rpm. The specification called for Ra 0.2 µm with no circumferential lay, which normally implies plunge grinding followed by superfinishing — two operations and a subcontract step.
Soluzione
We hard-turned the sealing diameter after age-hardening, using a CBN insert at high surface speed with a small nose radius and very low feed. A superfinishing belt pass removes the residual turning lay and brings the surface to a non-directional finish.
Risultato
Ra measures 0.16 – 0.19 µm with no measurable lay, meeting the seal manufacturer's requirement. The grinding subcontract was eliminated, cutting five days from the lead time and 21 % from the unit cost.
Inviaci oggi stesso il tuo disegno
STEP, IGES, X_T, DWG, DXF, PDF o STL. Ogni file è trattato come riservato e coperto da NDA su richiesta.