High Bandwidth Short Stroke Rotary Fast Tool Servo
Abstract
This paper presents the design and performance of a new rotary fast tool servo (FTS) capable of developing the 40 g's tool tip acceleration required to follow a 5 micron PV sinusoidal surface at 2 kHz with a planned accuracy of 50 nm, and having a full stroke of 50 micron PV at lower frequencies. Tests with de-rated power supplies have demonstrated a closed-loop unity-gain bandwidth of 2 kHz with 20 g's tool acceleration, and we expect to achieve 40 g's with supplies providing {+-} 16 Amp to the Lorentz force actuator. The use of a fast tool servo with a diamond turning machine for producing non-axisymmetric or textured surfaces on a workpiece is well known. Our new rotary FTS was designed to specifically accommodate fabricating prescription textured surfaces on 5 mm diameter spherical target components for High Energy Density Physics experiments on the National Ignition Facility Laser (NIF).
- Authors:
- Publication Date:
- Research Org.:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- US Department of Energy (US)
- OSTI Identifier:
- 15005147
- Report Number(s):
- UCRL-JC-155142
TRN: US200426%%60
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Conference
- Resource Relation:
- Conference: American Society for Precision Engineering, Portland, OR (US), 10/26/2003--10/30/2003; Other Information: PBD: 22 Aug 2003
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION; 42 ENGINEERING; ACCELERATION; ACCURACY; DESIGN; DIAMONDS; ENERGY DENSITY; LASERS; LORENTZ FORCE; PERFORMANCE; PHYSICS; POWER SUPPLIES; TARGETS; US NATIONAL IGNITION FACILITY
Citation Formats
Montesanti, R C, and Trumper, D L. High Bandwidth Short Stroke Rotary Fast Tool Servo. United States: N. p., 2003.
Web.
Montesanti, R C, & Trumper, D L. High Bandwidth Short Stroke Rotary Fast Tool Servo. United States.
Montesanti, R C, and Trumper, D L. 2003.
"High Bandwidth Short Stroke Rotary Fast Tool Servo". United States. https://www.osti.gov/servlets/purl/15005147.
@article{osti_15005147,
title = {High Bandwidth Short Stroke Rotary Fast Tool Servo},
author = {Montesanti, R C and Trumper, D L},
abstractNote = {This paper presents the design and performance of a new rotary fast tool servo (FTS) capable of developing the 40 g's tool tip acceleration required to follow a 5 micron PV sinusoidal surface at 2 kHz with a planned accuracy of 50 nm, and having a full stroke of 50 micron PV at lower frequencies. Tests with de-rated power supplies have demonstrated a closed-loop unity-gain bandwidth of 2 kHz with 20 g's tool acceleration, and we expect to achieve 40 g's with supplies providing {+-} 16 Amp to the Lorentz force actuator. The use of a fast tool servo with a diamond turning machine for producing non-axisymmetric or textured surfaces on a workpiece is well known. Our new rotary FTS was designed to specifically accommodate fabricating prescription textured surfaces on 5 mm diameter spherical target components for High Energy Density Physics experiments on the National Ignition Facility Laser (NIF).},
doi = {},
url = {https://www.osti.gov/biblio/15005147},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Aug 22 00:00:00 EDT 2003},
month = {Fri Aug 22 00:00:00 EDT 2003}
}