Famiglia di corpi valvola idraulici — fori incrociati, sbavati, collaudati a 350 bar
Una famiglia di quattro corpi valvola in alluminio con canali interni intersecanti, sbavati internamente e collaudati in pressione a 350 bar prima della spedizione.
Specifica del particolare
- Settore
- Industrial Machinery
- Processo
- CNC Milling
- Materiale
- Aluminium 6061-T6
- Tolleranza
- ±0.02 mm
- Finitura
- Clear anodised, ground sealing faces
- Quantità
- 800 / year
- Tempo di consegna
- 20 working days
Dati del cliente non divulgati per NDA.
Sfida
Intersecting cross-drilled passages leave burrs exactly where they cannot be reached with a hand tool, and a burr that breaks loose in a hydraulic circuit destroys the valve it feeds. The customer had experienced two field failures traced to internal debris.
Soluzione
We redesigned the drilling sequence so intersections are formed in a controlled order, then added thermal deburring for the internal passages and a high-pressure flush with particle counting on the effluent. Every body is hydrostatically tested to 350 bar with the test record supplied, and sealing faces are ground to 0.005 mm flatness.
Risultato
Particle counts now pass ISO 4406 18/16/13 on every batch. There have been no field failures in three years of supply. The pressure test record accompanies each shipment, which removed an incoming inspection step at the customer.
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