1、REAFFIRMED 2015FOR CURRENT COMMITTEE PERSONNELPLEASE E-MAIL CSasme.orgAN AMERICAN NATIONAL STANDARD REAMERS ASME 894.2-1995(REVISION OF ANSI 894.2-1983)&The American Society of Mechanical Engineers345 East 47 th Street,New York,N.Y.Date of Issuance:July 31,1995 This Standard will be revised when the
2、 Society approves the issuance of a new edition.There will be no addenda or written interpretations of the requirements of this Standard issued to this edition.ASME is the registered trademark of the American Society of Mechanical Engineers.This code or standard was developed under procedures accred
3、ited as meeting the criteria for American National Standards.The Consensus 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 re
4、view and comment which provides an opportunity for additional public input from industry,academia,regulatory agen.cies,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 an
5、y 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 assume any such liability.Users of a code or standard are expressly advised that deter
6、mination 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 sta
7、ndard.ASME accepts responsibility for only those interpretations issued in accordance with governing ASME procedures and policies which preclude the issuance of interpretations by individual volunteers.No part of this document may be reproduced in any form,in an electronic retrieval system or otherw
8、ise,without the prior written permission of the publisher.Copyright 1995 by THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS All Rights Reserved Printed in U.S.A.FOREWORD This Standard for reamers was formulated by Technical Committee 20 of the B5 Sectional Committee on the Standardization of Small Tool
9、s and Machine Tool Elements.The organization of Technical Committee 20 on the Standardization of Reamers in March 1937 was prompted by a recognized need for unifying the practice in this field.The proposal submitted by the committee was approved by ASA and designated ASA B5.14-1941.The Standard ASA
10、B5.14-1941 was revised and approved in 1949,and subsequently reaffirmed in 1954.A sufficient number of requests for revision resulted in reactivation of the committee in 1957.The revision was approved by the sectional committee and the sponsors,and the required ASA approval and designation were gran
11、ted April 9,1959.In November 1961,the ASA Mechanical Standards Board approved the request of the B5 Sectional Committee sponsors that a separate project be initiated under ASA Procedure on the subject of Cutting Tools.As a result of this action,a new project was initiated on Cutting Tools,and ASME a
12、ccepted sponsorship.The committee was designated B94 Cutting Tools,and the activity on cutting tools was removed from the B5 Sectional Committee.The designation numbers of the technical committees were changed to conform with the new sectional committee organization.B5 Technical Committee 20 was cha
13、nged to B94 Technical Committee 9.Requests for revision to B5.14-1959 to cover additions,deletions,and clarification of the Standard necessitated reactivation of the committee.The revised draft was prepared and distributed to the members for review and comment.A meeting of TC-9 was held in November
14、1962,and the draft was subsequently approved by the committee.The revised Standard was submitted to Sectional Committee B94 on May 27,1964.Following approval by the Sectional Committee and the sponsor,the Standard was approved by ASA on December 21,1964 and designated as ASA B94.2-1964.In 1970,Techn
15、ical Committee 9 revised the 1964 issue of B94.2,incorporating revisions and additions reflecting current industry practice.The revision was presented to American National Standards Committee B94 and to the B94 secretariat for approval.Thereafter,the revision was approved by ANSI on September 28,197
16、1.In accordance with ANSI procedures,a further revision was undertaken in 1976 in order to update the Standard.This revision was approved by ANSI on May 4,1977.Since then,ANSI also approved a 1983 revision,on September 30 of that year,as well as the present one,on April 14,1995.iii ASME STANDARDS COMMITTEE 894 Standardization of Cutting Tools,Holders,Drivers,and Bushings(The following is the roster of the Committee at the time of approval of this Standard.)OFFICERS C.W.Preuss,ChairK.I.Baron,Secr
