Case Study - DT40 - Machine Specification
Although it is common for machine configurations to be decided by the workpiece size and orientation in use, small components are not so difficult to manipulate until they become very small. The overall concept for the DT40 was decided by interpreting the customer specification which is tabulated below.
| Component Turning Operations | |
| Bores; 3 – 5 mm Diameter | ± 1 µm Size Control |
| Outside Diameters; 40 mm Diameter | ± 1 µm Size Control |
| Cylindricity | Within 1 µm |
| Face Flatness | Within 1 µm |
| Performance Targets | |
| Component Maximum Diameter: | 60 mm |
| Component Maximum Length: | 50 mm |
| Multi-indexing Tool Turret | Sandvik 8 Station Index |
| Aerostatic Workspindle | |
| Error Motion, Axial and Radial | Less Than 0.1 µm |
| Maximum Speed | 15,000 rpm |
| Acceleration | 2,500 rpm/sec |
| Static Position Control | Less Than 0.5 arc min |
| Dynamic Position Error at 200 rpm | Less Than 1 arc min |
| Linear Axes | |
| Calibrated X and Z Axis Positioning Accuracy | 0.1 µm |
| X and Z Axis Feedback Resolution | 0.025 µm |
| Temperature Controlled Process Coolant | ± 1°C |
Tweet
Cranfield Precision operates to ISO9001 quality standard and is accredited by Lloyds Quality Register.
A Division of Cinetic Landis Ltd.
Registered in England
Registration Number 05577045
Registered Office: Cross Hills, Keighley, West Yorkshire, BD20 7SD