Adaptador de tobera aeronáutico — 5 ejes, primer artículo AS9102
Un adaptador de tobera de aluminio contorneado, mecanizado completo en una sola sujeción de 5 ejes, con informe de primer artículo AS9102 y trazabilidad completa hasta la colada.
Especificación de la pieza
- Sector
- Aerospace & Defence
- Proceso
- 5-Axis Machining
- Material
- Aluminium 7075-T651
- Tolerancia
- ⌀0.02 mm true position
- Acabado
- Chromate conversion, MIL-DTL-5541
- Cantidad
- 120 / year
- Plazo
- 22 working days
Datos del cliente no divulgados por NDA.
Reto
The adapter has features on five faces with true position between them specified at ⌀0.05 mm. Machining it in three setups on a 3-axis machine consumed the entire tolerance in fixture repeatability before any cutting error was counted.
Solución
Machined complete in one 5-axis setup on a trunnion machine, with the CAM programme simulated against the full kinematic model including fixture and holders. The CMM programme measures from the same datum scheme the CAM used, so the report reflects how the part was actually made.
Resultado
True position measures within ⌀0.02 mm across all five faces — less than half the specified tolerance. AS9102 Forms 1, 2 and 3 were accepted without comment on the first submission, and the part moved to production release three weeks earlier than planned.
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