Low pressure turbine stator housing
75% reduction in machining time per bore.
An Asian aircraft turbine manufacturer wanted to increase productivity by replacing a partially manual back counterboring tool. After machining the back spot faces, he was also bothered by the entirely manual deburring process.
| Workpiece | Low pressure turbine stator housing |
| Bore | Ø7 mm |
| Counterbore | with chamfer on the inner bore edge / Ø13 mm |
| Cut | partially interrupted |
| Material | Inconel 718 |
| Material thickness | 4.0 mm |
| Machine | STARRAG STC1000 |
| Estimated production volume | 50 parts (3,200 bores) / year |
HEULE proposed its SOLO counterboring tool, distinguished by its ease of use and high production reliability. Thanks to the construction of a customer-specific blade that simultaneously applies a chamfer to the bore, the previously required additional deburring process is no longer needed.
| Tool | SOLO |
| Blade | application specific |
| Working speed | 15 m/min |
| Working feed | 0.03 mm/rev. |
| Coolant | external coolant |
The new process reduces the machining time for a bore by 25% and the total machining time for a part from 3 hours to 1 hour.