Microcomputer-based electronic error corrector bar for a numerically-controlled machine tool

Conference · Tue Nov 09 23:00:00 EST 1976

OSTI ID:7254871

Lamb, J W; Whelan, H A

The production of optical-quality surfaces for machined laser mirrors demands machining accuracies that are beyond the mechanical limits of even the best machine tools. An Electronic Corrector Bar was developed at LLL, using a microcomputer and a correction look-up table, to make corrections every 10 mils for both displacement and straightness errors to a 1 microinch Diamond Turning Lathe. The correction is predicted to improve the positional accuracy from 60 microinches to better then 5 microinches and straightness from 25 microinches to better then 5 microinches. Preliminary test results show that this goal is attainable. 4 figures.

• Research Organization: California Univ., Livermore (USA). Lawrence Livermore Lab.
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 7254871
• Report Number(s): UCRL-78780; CONF-770607-3
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420200* -- Engineering-- Facilities
Equipment
& Techniques
420300 -- Engineering-- Lasers-- (-1989)
ACCURACY
CONTROL SYSTEMS
COORDINATES
CORRECTIONS
ERRORS
LASER MIRRORS
MACHINE TOOLS
MACHINING
MICROPROCESSORS
ON-LINE CONTROL SYSTEMS
ON-LINE SYSTEMS