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

Conference · Wed Nov 10 00:00:00 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
• Resource Relation: Conference: Joint automatic control conference and IEEE Society on Control Systems, San Francisco, CA, USA, 22 Jun 1977
• Country of Publication: United States
• Language: English

Related Subjects

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