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Title: 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., CA (US)
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. Fri . "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 = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2003},
month = {8}
}

Conference:
Other availability
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