1、Copyright ASME International Provided by IHS under license with ASME Licensee=University of Alberta/5966844001,User=trert,rtyrtyrtyNot for Resale,03/07/2015 23:45:28 MSTNo reproduction or networking permitted without license from IHS-,-,-90 0759h70 0083060 AN AMERICAN NATIONAL STANDARD om Methods fo
2、r Performance Evaluation of Coordinate Measuring Machines ASME B89.1.12M-1990(REVISION OF ANSVASME B89.1.12M-1985)The American Society of Mechanical Engineers 345 East 47th Street,New York,N.Y.10017-Copyright ASME International Provided by IHS under license with ASME Licensee=University of Alberta/5
3、966844001,User=trert,rtyrtyrtyNot for Resale,03/07/2015 23:45:28 MSTNo reproduction or networking permitted without license from IHS-,-,-:ASME 0759670 0083061 Date of Issuance:June 14,1991 This Standard will be revised when the Society approves the issuance of a new edition.There will be no addenda
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10、91 by THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS All Rights Resewed Printed in U.S.A.Copyright ASME International Provided by IHS under license with ASME Licensee=University of Alberta/5966844001,User=trert,rtyrtyrtyNot for Resale,03/07/2015 23:45:28 MSTNo reproduction or networking permitted with
11、out license from IHS-,-,-ABSTRACT The primary purpose of this Standard is to clarify the performance evaluation of co-ordinate measuring machines(CMMs).A secondary purpose is to facilitate performance comparisons between machines.Definitions,environmental requirements,and test meth-ods are specified
12、.This Standard defines the test methods capable of yielding adequate results for the majority of coordinate measuring machines and is not intended to sup-plement more complete tests that may be required for special applications.o iii Copyright ASME International Provided by IHS under license with AS
13、ME Licensee=University of Alberta/5966844001,User=trert,rtyrtyrtyNot for Resale,03/07/2015 23:45:28 MSTNo reproduction or networking permitted without license from IHS-,-,-ASME B89.L.12M 90=0759670 0083063 b FOREWORD(This Foreword is not part o f ASME B89.1.12M-1990.)The ambiguity of coordinate meas
14、uring machine(CMM)specifications makes com-parative evaluations of performance characteristics very difficult.Because of this and the increasing use of CMMs,the ASME Standards Committee B89 elected to establish a U.S.A.industry standard applicable to this class of measuring equipment in order to sim
15、plifj and clarify performance specifications.At the October 1978 Committee meeting,Working Group B89.1.12 was established to develop the Standard,and Richard B.Hook was appointed Chairman.Coincidentally,Dr.P.Guarnero of Digital Electronic Automation,Torino,Italy,rec-ognized the same need on an inter
16、national level.In September 1978 he formed a world-wide organization,the Coordinate Measuring Machine Manufacturers Association(CMMA),which had as its chief objective the establishment of an international CMM performance standard.This organization was intended to have three sections:Europe,Japan,and the U.S.A.;Richard B.Hook was appointed Chariman of the U.S.A.section.The organizations differed in the interest of their membership,as well as in geograph-ical flavor.The CMMA members were coordinat
