2012_2017.pdf

Methods for Performance Evaluation of Computer Numerically Controlled Lathes and Turning CentersAN AM E R IC AN NAT IO NAL STANDARDASME B5.57-2012Revision of ASME B5.57-1998(R2006)REAFFIRMED 2017ASME B5.57-2012Methods forPerformanceEvaluation ofComputer NumericallyControlled Lathes andTurning CentersA N A M E R I C A N N A T I O N A L S T A N D A R DRevision of ASME B5.57-1998(R2006)Two Park Avenue New York,NY 10016 USADate of Issuance:May 3,2013This Standard will be revised when the Society approves the issuance of a new edition.There will be no written inter-pretations of the requirements of this Standard issued to this editon.Periodically,certain actions of the ASME B5 Committee may be published as Cases.Cases are published on the ASME Web site under the Committee Pages at http:/cstools.asme.org/as they are issued.Errata to codes and standards may be posted on the ASME Web site under the Committee Pages to provide correc-tions to incorrectly published items,or to correct typographical or grammatical errors in codes and standards.Such errata shall be used on the date posted.The Committee Pages can be found at http:/cstools.asme.org/.There is an option available to automatically receive an e-mail notification when errata are posted to a particular code or standard.This option can be found on the appro-priate Committee Page after selecting“Errata”in the“Publication Information”section.ASME is the registered trademark of The American Society of Mechanical Engineers.This code or standard was developed under procedures accredited as meeting the criteria for American National Standards.The Standards Committee that approved the code or standard was balanced to assure that individuals from competent and concerned interests have had an opportunity to participate.The proposed code or standard was made available for public review and comment that provides an opportunity for additional public input from industry,academia,regulatory agencies,and the public-at-large.ASME does not“approve,”“rate,”or“endorse”any item,construction,proprietary device,or activity.ASME does not take any position with respect to the validity of any patent rights asserted in connection with any items mentioned in this document,and does not undertake to insure anyone utilizing a standard against liability for infringement of any applicable letters patent,nor assumes any such liability.Users of a code or standard are expressly advised that determination of the validity of any such patent rights,and the risk of infringement of such rights,is entirely their own responsibility.Participation by federal agency representative(s)or person(s)affiliated with industry is not to be interpreted as government or industry endorsement of this code or standard.ASME accepts responsibility for only those interpretations of this document issued in accordance with the established ASME procedures and policies,which precludes the issuance of interpretations by individuals.No part of this document may be reproduced in any form,in an electronic retrieval system or otherwise,without the prior written permission of the publisher.The American Society of Mechanical EngineersTwo Park Avenue,New York,NY 10016-5990Copyright 2013 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedPrinted in U.S.A.iiiCONTENTSForeword .viCommittee Roster.viiCorrespondence With the B5 Committee .viii1 Scope.12 References.173 Nomenclature.174 Definitions.205 Environmental Specifications.336 Environmental Tests.357 Machine Performance.438 Machine Performance(Additional).889 Test Equipment and Instrumentation.102Figures4-1 The Six Basic Error Motions of an Axis of Rotation.214-2 Error Motion Polar Plot Showing a Polar Chart Center,a Least-Squares-Circle Center,and Error Motion Values About These Centers.244-3 An Example of a Structural Loop Showing a Workpiece,Spindle,Machine Bed,and Tool.316.2.1.4-1 Setup Showing Two Displacement Sensors Used to Measure the Environmental Temperature Variation Error(ETVE)Between a Nominal Tool Location and a Work Spindle.366.2.1.4-2 Setup Showing Three Displacement Sensors Used to Measure the Environmental Temperature Variation Error(ETVE)Between a Nominal Tool Location and a Work Spindle.386.2.1.4-3 Graph of Environmental Temperature Variation Error(ETVE)Data.396.2.1.6-1 Setup Showing Five Displacement Sensors Used to Measure the Environmental Temperature Variation Error(ETVE).397.2.3-1 Typical Setup for a Laser Interferometer.457.2.7-1 The Full Data Set for the Positioning Deviations of an Axis.487.2.7-2 Positioning Deviations of an Axis,Forward Direction Only.497.2.8-1 Periodic Error of a Linear Axis(Unidirectional).507.3.1.1-1 Setup for Measuring Straightness Using an Electronic Indicator and a Mechanical Straightedge.517.3.1.2-1 Test Setup for Measuring Straightness Using a Taut Wire.527.3.1.3-1 Test Setup for Measuring Straightness Using an Alignment Laser.537.3.1.4-1 Typical Straightness Interferometer.537.3.2-1 Typical Plot Showing Straightness