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1、For Cutting Tools Indexable Insert Shank-Type Milling Cutters (Inch Series) Designation ANSI B212.11-1988 ANSI B212.11-1988 (R-2002) SPONSOR Cemented Carbide Producers Association Approved May 24, 1988 ANSI B212.11-1988 (R-2002) Revision of ANSI B7.1-1995 American National Standard for Cutting Tools
2、 Indexable Insert Shank-Type Milling Cutters (Inch Series) Designation Approved March 22, 2002 American National Standards Institute, Inc. Secretariat Cemented Carbide Producers Association Approval of an American National Standard requires verification by ANSl that the requirements for due process,
3、 consensus, and other criteria for approval have been met by the standards developer. Consensus is established when, in the judgement of the ANSl Board of Standards Review, substantial agreement has been reached by directly and materially affected interests. Substantial agreement means much more tha
4、n a simple majority, but not necessarily unanimity. Consensus requires that all views and objections be considered, and that a concerted effort be made toward their resolution. The use of American National Standards is completely voluntary; their existence does not in any respect preclude anyone, wh
5、ether they have approved the standards or not, from manufacturing, marketing, purchasing, or using products, processes, or procedures not conforming to the stan- dards. The American National Standards Institute does not develop standards and will in no circumstances give any interpretation of any Am
6、erican National Standard. Moreover, no person shall have the right or authority to issue an interpretation of an American National Standard in the name of the Ameri- can National Standards Institute. Requests for interpretations should be addressed to the secretariat or sponsor whose name appears on
7、 the title page of this standard. CAUTION NOTICE: This American National Standard may be revised or withdrawn at any time. The procedures of the American National Standards Institute require that action be taken periodically to reaffirm, revise, or withdraw this standard. Purchasers of American Nati
8、onal Standards may receive current information on all standards by calling or writing the American National Standards Institute. American National Standard Published by Cemented Carbide Producers Association 30200 Detroit Road, Cleveland, Ohio 44145-1967 Copyright 2003 by Cemented Carbide Producers
9、Association All rights reserved. No part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without prior written permission of the publisher. Printed in the United States of America ANSI B212.11-1988 i Foreword. ii 1 Scope6 2Releated standards 6 2.1 A
10、merican National Standards .6 2.2 International Standards.6 3Explanation of the code6 4Symbols for defining cutters.7 4.1 Cutter diameter .7 4.2 Type of cutter and insert cutting edge angle 7 4.3 Number of slots.7 4.4 Cutting direction 7 4.5 Protruding length.7 4.6 Type of shank7 4.7 Size of shank 7
11、 4.8 Method of holding the insert .7 4.9 Insert shape 7 4.10 Insert clearance7 4.11 Cutting length .7 4.12 Insert size .8 4.13 Manufacturers option.8 Tables 1Code for the designation of indexable shank-type milling cutters designed in U.S. customary inch units.8 2Symbol for the effective cutter diam
12、eter 9 3Letter symbol for the type of cutter and insert cutting edge angle.10 4Letter symbol for the hand of rotation 13 5Symbol for the protruding length 13 6Letter symbol for the type of shank14 7Letter symbol for the method of holding the insert.15 8Letter symbol for the insert shape16 9Letter sy
13、mbol for the insert normal clearance16 10 Examples of symbols for effective cutting lengths .17 11 Examples of symbols for insert sizes.17 Page Contents ii Figures 1Illustration of code for the designation of indexable shank-type milling cutters designed in U.S. customary inch units.19 2Milling cutt
14、er with parallel shank 20 3Morris taper shank20 47/24 shank 20 Page iii On September 21, 1983, the Cemented Carbide Producers Association held an organizational meeting for the purpose of forming an Accredited Standards Committee for Cemented Carbides. All requirements for the formation of that comm
15、ittee, as contained in the American National Stan- dards Institute Procedures for the Development and Coordination of Ameri- can National Standards effective September 1, 1982, were submitted to ANSI on October 5, 1983. The proposed committee was designated Ac- credited Standards Committee B212. Wit
16、hin the B212 Committee, Techni- cal Subcommittee TC-1 was formed, whose scope is: the standardization of blanks and inserts composed of carbide, ceramic, and compacted diamond/CBN; the standardization of the tools and holders for these blanks and inserts as used for turning (both internal and extern
17、al) including nomenclature, classification, size, tolerances, and identification. The material contained in this standard was developed by Technical Subcommittee TC-1 of Committee B212, after a thorough investigation of all factors involved. It is based on sound engineering practice and reflects the
18、 requirements of the industry. It was approved by the American national Standards Institute, Inc., on May 24, 1988, and designated American National Standard for Cutting Tools Indexable Insert Shank-Type Milling Cutters (Inch Series) Designation, ANSI B212.11-1988. This standard establishes a code f
19、or the designation of indexable insert shank-type milling cutters designed in U.S. Customary inch units for the purpose of simplifying orders and referencing specifications. For clarity, this standard follows the format of International Standard for Shank Type Milling Cutters for Indexable Inserts D
20、esignation, ISO 7848:1986 (E). This standard covers shank-type milling cutters that are inserted into a holding device or directly into the machine spindle. Suggestions for improvement of this standard will be welcome. They should be sent to the Cemented Carbide Producers Association, 30200 Detroit
21、Road, Cleveland, OH 44145-1967. This standard was processed and approved for submittal to ANSI by Accredited Standards Committee for Cemented Carbides, B212. Commit- tee approval of the standard does not necessarily imply that all committee members voted for its approval. At the time it approved thi
22、s standard, the B212 Committee had the following members: Gerald Rhodes, Chairman J. Jeffery Wherry, Secretary Organization RepresentedName of Representative Association for Manufacturing Technology (AMT) Anthony M. Bratkovich, P.E. Carboloy, Inc Don Reinert Cemented Carbide Producers Association .
23、J. Jeffery Wherry Dresser-Rand Company Gerald J. Rhodes Greenleaf Corporation . Donald R. Hughes Ingersoll Cutting Tool Company Jim Schultz Kennametal, Inc. Lee Yothers Machining Research Inc. . John D. Christopher Sandvik Coromant Company Keith Crawford TechSolve, Inc. Anil Srivastava, Ph.D. United
24、 States Cutting Tool Institute Charles Stockinger Valenite, Inc. James J. Robinson Foreword (This Foreword is not part of American National Standard B212.11-1988) iv Richard Black Jeff Burton Keith Crawford Donald R. Hughes Jeff Kleven Joseph J. Ley Thomas Morey Mike Powell Don Reinert James J. Robi
25、nson Gary W. Roderick Jim Schultz David Wills Lee Yothers The TC-1 Technical Subcommittee of Committee B212, which was re- sponsible for the development of this standard, had the following mem- bers: Gerald Rhodes, Chairman J. Jeffery Wherry, Secretary 1 AMERICAN NATIONAL STANDARDANSI B212.11-1988 A
26、merican National Standard for Cutting Tools Indexable Insert Shank-Type Milling Cutters (Inch Series) Designation 1 Scope This standard establishes a code for the des- ignation of indexable insert shank-type milling cutters designed in U.S. customary inch units for the purpose of simplifying orders
27、and ref- erencing specifications. For clarity, this standard follows the format of Inter national Standard for Shank Type Milling Cutters for Indexable Inserts - Designation, ISO 7848:1986 (E). This standard covers shank-type milling cut- ters that are inserted into a holding device or directly into
28、 the machine spindle. 2Related standards The following standards are listed for informa- tion only and are not essential to complete the requirements of this standard. 2.1American National Standards ANSI/ASME B5.50-1985, “V” Flange Tool Shanks for Machining Centers with Automatic Tool Changers ANSI
29、B94.25-1982, Indexable Inserts for Cut- ting Tools 2.2International standards ISO 7388/1:1983, Tool shanks with 7/24 taper for automatic tool changers - Part 1: Shank numbers 40, 45, 50 Dimensions ISO 7848:1986 (E), Shank type milling cutters for indexable inserts - Designation1 3Explanation of the
30、Code The code consists of a prefix (S - shank type) and twelve symbols, all of which shall be used in any designation. As shown in table 1 and figure 1, five symbols designate the character- istics of the body; two the characteristics of the shank; and five the method of holding the insert, insert c
31、haracteristics, and the cutting length. In addition to the standardized designation (prefix S and symbols 1-12), a supplementary suffix symbol 13 consisting of a maximum of two letters or digits may be added by the manufacturer for a better description of his products. The suffix shall be separated
32、from the standard designation by a dash (-). No addition to or extension of the code given in this standard shall be made without consul- tation with Technical Subcommittee TC-1 of Accredited Standards Committee B2 12 and its agreement. Rather than adding symbols not provided for in this system, the
33、 designa- tion conforming to this standard should be accompanied with any necessary explanations via detailed sketches or specifications. The meanings of the prefix, the twelve sym- bols, and the suffix constituting the code are as follows: SPrefix signifying shank type and inch di- mensions 1A one-
34、, two-, or three-digit number defin- ing the effective diameter of the cutter (see 4.1) 2A letter symbol identifying the type of cut- ter and insert cutting edge angle (see 4.2) 1 Available from American National Standards Institute, Inc, 14 30 Broadway, New York, New York 100 18. 2 ANSI B212.11-198
35、8 3A one- or two-digit number defining the effective number of slots to be used in determining feed rate; it may not corre- spond to the total number of inserts due to staggered positioning (see 4.3) 4A letter symbol defining the hand of cut (R or L) (see 4.4) 5A one-, two-, or three-digit number de
36、fin- ing the protruding length of the cutter (see 4.5) 6A letter symbol identifying the type of shank (see 4.6) 7A one- or two-digit number defining the size of shank (see 4.7) Dash (not counted as a position) 8A letter symbol identifying the method of holding the insert (see 4.8) 9A letter symbol d
37、efining the insert shape (see 4.9) 10 A letter symbol defining the normal clear- ance angle on the insert (see 4.10) 11 A one-, two-, or three-digit number defin- ing the cutting length (see 4.11) Dash (not counted as a position) 12 A one-, two-, or three-digit number defin- ing insert size (see 4.1
38、2) Dash (only used if position 13 is used, and is not counted as a position) 13 A one- or two-character designation used at the manufacturers option (and that is not mandatory) to provide more informa- tion about its specific products. If used, it shall be preceded by a dash 4Symbols for defining cu
39、tters 4.1Cutter diameter The first position shall contain the symbol for the effective cutter diameter. The symbol for the effective cutter diameter is a significant one-, two-, or three-digit number that provides for the definition of the effective cutter diam- eter (as shown in table 1), and can r
40、epresent (as shown in table 2) cutters with effective fractional diameters that are less than 1 inch, cutters with effective fractional diameters that are 1 inch through 9-15/16 inches, and cutters with effective diameters expressed as whole number values. 4.2Type of cutter and insert cutting edge a
41、ngle The second position shall contain a letter that represents the type of cutter and insert cutting edge angle, as shown in table 3. 4.3Number of slots The third position shall contain a significant one- or two-digit number that indicates the effective number of slots used to determine feed rate.
42、NOTES: (1) For cutter types G-L, the third position may not correspond to the real number of total slots due to staggered positioning of the inserts. (2) For cutters with more than one insert axially or radially positioned such as helical design or step cutters, the manufacturers catalogs should be
43、examined for the angle and hand of helix and stepping. 4.4Cutting Direction The fourth position shall contain a letter used to indicate the hand of rotation, as shown in table 4. 4.5Protruding length The fifth position shall contain a significant one-, or two-, or three-digit number indicating the p
44、rotruding length. The protruding length is defined as follows: for milling cutters with parallel shank, the protruding length is the overall length of the milling cutter minus the length of the parallel shank, as shown in Fig- ure 2; for milling cutters with Morse taper, 7/ 24 shank, or NMTB (Nation
45、al Machine Tool Builders) tapers, the protruding length is the distance from the face of the cutter to the gauge plane or line, as shown in Figures 3 and 4. The protruding length of the cutter diameter is a significant one-, two-, or three-digit number that can accommodate, as shown in table 5, frac
46、tional lengths that are less than 1 inch, fractional lengths that are 1 inch through 9-15/ 16 inches, and lengths that are expressed as whole number values. 3 ANSI B212.11-1988 4.6Type of shank The sixth position shall contain a letter to designate the type of shank, as shown in table 6. 4.7Size of
47、shank The seventh position shall contain a signifi- cant one-, two-, or three-digit number that designates the size of the shank. For parallel shanks, the number indicating the seventh position shall be the nominal diam- eter in increments of 1/8 inch (for example: 3/ 4-inch diameter 6/8 or 6; 1-3/4
48、-inch diameter = 14/8 or 14). For taper shanks, the number indicating the seventh position shall be the number of the taper (for example: Number 3 Morse taper = 3; NMTB #50 taper = 50; BT 35 = B35). 4.8Method of holding the insert The eighth position shall contain a letter to designate the method of
49、 holding the insert, as shown in table 7. 4.9Insert shape The ninth position shall contain a letter sym- bol that is used to identify the insert shape (see table 8). Insofar as possible, this letter should be descriptive of the shape. 4.10 Insert clearance The tenth position shall contain a letter that represents the normal clearance of the insert, as shown in table 9. 4.11 Cutting length The eleventh position &hall contain a signifi- cant three-digit number designating the effec- tive cutting length of the cutter, as shown in table 10. If the effectiv
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