Dynamic characteristics of the LLNL Precision Engineering Research Lathe
The dynamic characteristics of the Precision Engineering Research Lathe (PERL) have been investigated experimentally, up to a frequency of 1000 Hz. In successive tests, the exciting force was applied to either the X slide or the (non-rotating) spindle, and in the X or Z direction. These are the critical directions for turning operations on this T base type lathe. Each of these tests was furthermore done with the servo system active and with the servo system off (slides clamped, control loops open). The applied force fluctuations and the resulting relative displacement, between a capacitive probe mounted on the X slide and the spindle, were measured during the experiments. From these data, the relative dynamic compliances between the tool and the workpiece, in the Z and X directions, have been determined. The most important resonant frequencies, modes, and compliances are reported. Their consequences with regard to the surface quality of diamond turned parts are also discussed. 3 refs., 11 figs.
- Research Organization:
- Lawrence Livermore National Lab., CA (USA)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 6477703
- Report Number(s):
- UCRL-99501; CONF-8810335-1; ON: DE89008829
- Resource Relation:
- Conference: 3. annual precision engineering conference of the American Society for Precision Engineering, Atlanta, GA, USA, 24 Oct 1988; Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
Similar Records
Prints for precision engineering research lathe (Engineering Materials)
Design of a high-performance slide and drive system for a small precision machining research lathe