Accession Number : AD0820138

Title :   MEASUREMENT AND IN-PROCESS CONTROL OF SMALL BORES.

Descriptive Note : Final rept. 1 Jul 63-16 Jan 67.

Corporate Author : SPERRY GYROSCOPE CO LTD MONTREAL (QUEBEC)

Report Date : MAR 1967

Pagination or Media Count : 385

Abstract : A program, directed toward the development of an improved manufacturing capability for the production of ultraprecision (30 microinches total composite error) small (0.025 to 1.0 inch diameter) bores and to develop the necessary techniques of micrometrology in order to certify the accuracy of holes produced, has been completed. A metal removal control technique, which represents an advance in the state of the art, has been developed. Within reasonable limits of metal removal per cycle, a true bore to microinch accuracy can be obtained in one machining cycle regardless of the imperfections of the hole prior to boring. Improved productivity and reliability due to reduced production times and extended tool life will also result. (Author)

Descriptors :   (*DRILLING MACHINES, ALIGNMENT), MICROMETERS, PRECISION FINISHING, DEFLECTION, DETECTORS, INTERFEROMETERS, MEASURING INSTRUMENTS, LASERS, OPTICAL EQUIPMENT, CUTTING TOOLS, SURFACE ROUGHNESS, VIBRATION, X RAY DIFFRACTION, PIEZOELECTRIC GAGES, STRAIN GAGES, ORIFICES, CONTROL SYSTEMS, DATA PROCESSING, SERVOMECHANISMS.

Subject Categories : Mfg & Industrial Eng & Control of Product Sys

Distribution Statement : APPROVED FOR PUBLIC RELEASE