4-21_R2003_E1968.pdf

USA STANDARD GEAR SHAPER,CUTTERS USAS B94.21-1968 3p0,0,The American Society of Mechanical Engineers T H E A M E R I C A N S O C I E T Y O F M E C H A N I C A L E N G I N E E R S United Engineering Center 345 East 47th Street New York,N.Y.1001 7 Copyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.REAFFIRMED 2003FOR CURRENT COMMITTEE PERSONNELPLEASE E-MAIL CSasme.orgUSA STANDARD This USA Standard is one of nearly 3000 standards approved as American Standards by the American Standards Association.On August 24,1966,the ASA was reconstituted as the United States of America Standards Institute.Standards approved as American Standards are now designated USA Standards.There is no change in their index indentifi-cation or technical content.Any part of this standard may be quoted.Credit lines should read:“Extracted from USA Standard Gear Shaper Cutters(USAS B94.21-1968)with the permission of the publisher,The American Society of Mechanical Engineers,United Engineering Center,345 East 47th Street,New York,New York 10017.”THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS Copyright,1969 by Printed in U.S.A.Copyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.F O R E W O R D In response to requests from both users and producers a project was initiated in December of 1961 to establish standards for gear cutting tools.USA Standards Committee B5 approved this project at their annual meeting in 1961 and created technical committee TC-14 to prepare such standards.In 1962 the USA Standards Committee B5 was divided and technical commit-tees identified with the general area of“metal cutting”were transferred to a new USA Standards Committee B94.The first meeting of TC-14,reporting to USA Standards Committee B94,was held in December 1962.It was at this time decided to divide the general subject into three areas;i.e.,hobs,gear shaper cutters and shaving cutters.The initial activity was to prepare a proposal for a USA Standard on hobs,using the industry standards(MCTI)as the basis for consideration.A proposal covering hobs was submitted to industry in September 1964 and on June 22,1966,it was approved by the USA Standards Institute and designated A proposal covering shaper cutters was submitted to industry in December 1966 for review and comments.All of the responses were considered in a meeting of TC-14 in November 1967 and they then approved a final proposal.The B94 TC15 Editorial Committee reviewed the proposal and it was sub-mitted in March 1968 to the USA Standards committee B94 for letter ballot.Fol-lowing approval by B94,the proposal was approved by the sponsor,ASME,on June 13,1968.It was approved by the United States of America Standards Institute on August 5,1968.B94.7-1966.Ill Copyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.USA STANDARDS COMMITTEE B94 STANDARDIZATION OF CUTTING TOOLS,HOLDERS DRIVERS AND BUSHINGS OFFICERS H.J.Moffatt,Chairman A.M.Mezey,Vice-Chairman USA STANDARDS COMMITTEE THE AMERICAN GEAR MANUFACTURERS ASSOCIATION P.M.Dean,Jr.,Mechanical Technology,Inc.,Latham,New York G.L.Scott,Alternate,American Gear Manufacturers Association,Washington,D.C.AMERICAN SOCIETY O F MECHANICAL ENGINEERS,THE C.J.Oxford,Jr.,Vice President Research,National Twist Drill&Tool Company,Rochester,Michigan M.E.Merchant,Director of Scientific Research,The Cincinnati Milling Machine Company,Cincinnati,Ohio AMERICAN SOCIETY OF TOOL AND MANUFACTURING ENGINEERS K.A.Lundell,Chief Engineer,The Product0 Machine Company,Jamestown,New York H.J.Moffatt,Caterpillar Tractor Company,East Peoria,Illinois J.E.Rotchford,Anderson Power Products,Inc.,Boston,Massachusetts CEMENTED CARBIDE PRODUCERS ASSOCIATION W.E.Montgomery,Firth Sterling,Inc.,Pittsburgh,Pennsylvania A.P.Wherry,Alternate,Cemented Carbide Producers Association,Cleveland,Ohio GENERAL SERVICES ADMINISTRATION W.C.Petrie,General Services Administration,Standardization Division,Washington,D.C.METAL CUTTING TOOL INSTITUTE L.P.Sohles,Chief Products Engineer,Morse Twist Drill&Machine Company,New Bedford,Massachusetts P.L.Houser,Alternote,President,Metal Cutting Tool Institute,New York,N.Y.NATIONAL ASSOCIATION OF PUNCH MANUFACTURERS R.J.Gargrave,President,DAY/TON Progress Corporation,Dayton,Ohio NATIONAL BUREAU OF STANDARDS F.P.Brown,Chief,Shop Division,National Bureau of Standards,Washington,D.C.SOCIETY OF AUTOMOTIVE ,ENGINEERS R.H.Mustonen,General Motors Technical Center,Warren,Michigan W.H.Seacord,International Harvester Company,Chicago,Illinois SOCIETY OF CARBIDE ENGINEERS W.E.Hess,167 Wilder Street,Hillside,New Jersey TELEPHON