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1、 J I S B*4230 89 4933608 0033255 3 - I e r ,JIS UDC 621.91 4.2:621.886.6-45 JAPANESE INDUSTRIAL STANDARD Woodruff Keyseat Milling Cutters Translated and Published by Japanese Standards Association Printed in Japan 6 s Copyright Japanese Standards Association Provided by IHS under license with JSALic
2、ensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 01:53:20 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S BU4230 89 4933608 0033256 3 In the event of any doubt arising, the original Standard in Japanese is to be final authority. Copyright J
3、apanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 01:53:20 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S B*4230 89 4933b08 0013257 5 UDC 621.914.2:621.886.6-45 JAPANESE
4、 INDUSTRIAL STANDARD J I S Woodruff Keyseat Milling Cutters B 4230-1989 1. Scope This Japanese Industrial Standard specifies the woodruff keyseat milling cutters used for working key ways corresponding to those keys with nominal sizes of 2.5 x 10 to 12 x 80 mm specified in JIS B 1302, hereafter refe
5、rred to as the “milling cutters“, 2. Definition The meanings of the main terms used in this Standard shall be as specified in JIS B 0172. 3. Classification Milling cutters shall be classified into the two types of shank type and bore type by outside diameters. 4. Shapes and Dimensions The shapes and
6、 dimensions of milling cutters shall be as specified in Table 1 and Table 2. a Applicable Standards: See page 7. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 01:53:20 MDTNo reproduction
7、or networking permitted without license from IHS -,-,- J I S B*4238 89 E 4733608 0033258 7 H verai w f h 2 B 4230-1989 Shank Informative reference length I Width 6 Outside dia ter D Table 1. Shape and Dimensions of Shank Type where where Shank eter Nomina size b X D diz ?efer ince 1 h e n ,ion 8 8 1
8、0 12 - - - - 10 - 12 - Zeter mce 1 !mer jion 2.5 ermissible evia t ion C - 0.15 - 3.25 ermissible Refer erm i s s i ble leviation (h 8) O -0.022 2 . 5 x i a 7.5 I t- + 3 x 1 0 -0.014 E 7.5 I 8 + 3x13 -0,028 I 13 lo I 3 I +O. 300 +O, 180 +0.350 +0.210 3 x 1 6 O -0.027 I l6 13 I 10 4 X 13 O -0.022 O -
9、0.027 10 1 8 4 X 16 4 4 x 1 9 16 I 12 t - - + 5 x 1 6 +O. 300 +0.180 I l6 I 39 I I 20 13 I 10 5 5x19 1391 I 4 12 F W ; 1 7.5 5x22 I 22 t- +0.350 +0.210 6 x 2 2 6x25 4 14 6 6x28 6x32 +0.430 +O, 260 26 I I I I 7 x 2 2 ; 25 8.5 I +0.350 +0.210 7x25 7 x 2 8 7 7x32 $0.430 +0.260 7 x 3 8 32 38 7x45 Copyri
10、ght Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 01:53:20 MDTNo reproduction or networking permitted without license from IHS -,-,- JPS *4238 87 4933688 8013257 9 Nominal Width b Yr D size Refer-
11、permissible Refer- bxD dimen- 8x25 8x28 8x32 8x38 10 X 32 10 X 45 45 ence. deviation ence Permissible sion (e81 s i o n d imen- deviation 25 +0.350 28 +Oe210 8 32 -0.047 38 -0.025 +0.430 32 +0.260 10 3 B 4230-1989 Informative reference dn R C dl of Z Shank diameter d Overall .Shank . length length R
12、efer- Permissible Number mzn- deviation s i o n (h8) Is teeth L 41 7.5 25 20 43 23 14 60 8.5 0.25 65 46 26 O 51 10.5 - 32 16 46 8.5 26 14 78 56 11.5 . 38 16 l2 -0.027 70 0.4 Table 1. (Continued) Unit: mm Nominal size Bore diameter d I Informative reference Width b Outside System A diameter Remarks 1
13、. The. nominal sizes in the table correspond to the nominal sizes of woodruff keys. 2. The permissible deviations for b and d are based on JIS B 0401. 3. Center holes shall conform to JIS B 1011 4. The permissible deviations for L and Is shall conform to the coarse grade specified in JIS B 0405. bXD
14、 Table 2. Shape and Dimensions of Bore Type Refer- Permissible Refer- Refer- Permissible e n c e deviation e n c e Permissible d !men- (e 8) d imen- deviation s ion s ion :!“,“,- deviation s i o n (H7) Unit: mm 10x55 10x65 12 X 65 12x80 -0:025 1 i 1 -0.047 +O. 50 +O. 30 -0.032 -0.059 1 4 6 1 1116 I
15、I I I I Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 01:53:20 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S BU4230 89 4933608 001i3260 5 4 B 4230-1989 N
16、ote (1) The use of system B shall be avoided as far as possible. Remarks 1. 2. 3. The nominal sizes in the table correspond to the nominal sizes of woodruff keys. The permissible deviations for b and are based on JIS B 0401. The reference dimension and permissible deviation for key ways shall confor
17、m to JIS B 4201. 5. Quality 5.1 Appearance In their appearance, milling cutters shall be free from such defects as macrostreak flaws, cracks, harmful burrs, cuts, rust, and defective joining, and have an excellent finish. 5.2 Surface Roughness When tested according to 7.1, the surface roughness of t
18、he cutting part of milling cutters shall conform to 1.6 a (6.3 S) specified in - _ JIS B 0601. 5.3 Hardness When tested according to 7.2, the hardness of the cutting part of milling cutters shall be not lower than HRC 63 (HV 772), and the shank shall be subjected to a suitable heat treatment to prev
19、ent harmful deformation or damage. 5.4 Runout When tested according to 7.3, the runouts of the peripheral cut- ting edge and of the side surface shall satisfy the tolerance requirements specified in Fig. 1. 5.5 Sharpness Milling cutters shall have an excellent sharpness. Fig. 1. Tolerance Values for
20、 Runout of Cutting Part f 0.03 A Remark: The method of diagrammatical indication shall be based on JIS B 0021. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 01:53:20 MDTNo reproduction or
21、 networking permitted without license from IHS -,-,- J I S B84230 A9 4933608 0013261 7 5 B 4230-1989 6. Material The material of the cutting part of milling cutters shall conform to SKH 51 specified in JIS G 4403 or be a material equivalent or superior thereto in per- f ormance. The material of the
22、shank of milling cutters whose cutting part and shank are made of different materials shall conform to S 55 C specified in JIS G 4051 or be equivalent or superior thereto in performance. 7. Testing Methods 7.1 Surface Roughness The surface roughness of milling cutters shall be measured by visual com
23、parison with the standard roughness specimens specified in JIS B 0659. 7.2 Hardness The hardness of the cutting part of milling cutters shall be measured according to the measuring method specified in JIS Z 2245 using the tester specified in JIS B 7726. However, where measurement by a Rockwell hard-
24、 ness tester is impossible, it may be performed by the specified in JIS Z 2251 using the tester specified in JIS B 7734. 0 Where measurement by testers is difficult, a comparison measurement by means of files may be applied. 7.3 Runout be performed as follows: The runout of the peripheral cutting ed
25、ge of milling cutters shall In the case of the shank type, support the milling cutter by a vee block placed on a precision surface plate, as shown in Fig. 2, or in the case of the bore type, support it as shown in Fig. 3, and apply dial gauges perpendicularly to the peripheral cutting edge and the s
26、ide surfaces and read the pointer moving of the dial gauges while rotating the milling cutter toward the arrowed direction. Then take the difference between the maximum and the minimum values of the readings as the measured value. Fig. 2. Measuring Method for Fig. 3. Measuring Method for Runout Runo
27、ut of Shank Type of Bore Type I I S tee1 bal 1 :opper arbor ter stand - . Precision surface plate ; Precision surface plate Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 01:53:20 MDTNo re
28、production or networking permitted without license from IHS -,-,- J I S B*4230 87 4733608 00132b2 9 W 6 B 4230-1989 Remarks 1. The surface plate shall conform to Grade 1 specified in JIS B 7513. 2. The dial gauges shall conform to JIS B 7503. 3. The vee block shall conform to grade 1 specified in JI
29、S B 7540. 4. The steel ball shall conform to JIS B 1501. 8. Inspection Milling cutters shall be inspected for shape and dimensions, appearance, surf ace roughness, hardness, runout, and sharpness, and shall comply with the specifications of 4. and 5.1 to 5.5 for the respective inspection items. 9. M
30、ethod of Designation of Products Milling cutters shall be designated by the number or title of this Standard, nominal size, and the material symbol() for the cutting part. Examples: JIS B 4230 3 x 10 SKH 51 Woodruff keyseat milling cutter 3 x 10 SKH 51 Note (2) Where the material used is a high spee
31、d tool steel, it may be indicated as HS and HSS. 10. Marking. 10.1 Marking on Product Milling cutters shall be marked with the following How- items of information on the recess part of the shank or the side surface. ever, the bore diameter shall be marked only for bore type milling cutters. (1) (2)
32、(3) Manufacturers name or symbol Nominal size x bore diameter: Material symbol(3) for cutting part: 10 x 55 x 16 SKH 51 Note ( 3 ) Where the material used is a igh speed tool stee dicated as HS or HSS. t may ,e in- 10.2 Marking on Package The packages of milling cutters shall be marked with the titl
33、e of this Standard and the items of information specified in 10.1. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 01:53:20 MDTNo reproduction or networking permitted without license from I
34、HS -,-,- J I S B*4230 A9 4933bO 00132b3 O 7. B 4230-1989 Applicable Standards: JIS B 0021-Indication of Geometrical Tolerances on Drawings JIS B 0172-Glossary of Terms for Milling Cutters JIS B 0401-System of Limits and Fits JIS B 0405-Permissible Machining Deviations in Dimensions without Tolerance
35、 Indication JIS B 0601-Definitions and Designation of Surface Roughness JIS B 0659-Roughness Comparison Specimens JIS B 1011-Centre Holes JIS B 1302-Woodruff Keys and Their Corresponding Keyways JIS B 1501-Steel Balls for Ball Bearings JIS B 4201-Cutter Bore JIS B 7503-Dial Gauges Reading in 0.01 mm
36、 JIS B 7513-Precision Surface Plates JIS B 7540-Vee Blocks JIS B 7726-Rockwell and Rockwell Superficial Hardness Testing Machines JIS B 7734-Micro Hardness Testing Machines for Vickers and Knoop Hardness JIS G 4051-Carbon Steels for Machine Structural Use JIS G 4403-High Speed Tool Steels JIS Z 2245
37、-Method of Rockwell and Rockwell Superficial hardness Test JIS Z 2251-Method of Micro Hardness Test for Vickers and Knoop Hardness o Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 01:53:20
38、 MDTNo reproduction or networking permitted without license from IHS -,-,- i 7 J I S B*4230 89 W 4933b08 00l132b4 2 = Japanese Text Established by Minister of International Trade and Industry Date of Establishment: 1951-10-31 Date of Revision: 1989-09-01 Date of Public Notice in Official Gazette: 19
39、89-09-04 Investigated by: Japanese Industrial Standards Committee Divisional Council on Machine Elements Technical Committee on Milling Cutters and Reamers This English translation is published by: Japanese Standards Association 1-24, Akasaka 4, Minato-ku, Tokyo 107 Japan O JSA,1990 Rinted i n Tokyo by Hohbunsha Co., Ltd. B 4230-1989 Edition 1 Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 01:53:20 MDTNo reproduction or networking permitted without license from IHS -,-,-