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1、r J I S B*4805 87 W 4733608 0034339 b UDC 621.934.025.7 JIS JAPANESE INDUSTRIAL STANDARD Circular Saws with Cemented Carbide Tips JIS B 4805-1989 Translated and Published by Japanese Standards Association Printed in Japan 6 s Copyright Japanese Standards Association Provided by IHS under license wit
2、h JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 06:40:35 MDTNo reproduction or networking permitted without license from IHS -,-,- In the event of any doubt arising, the original Standard in Japanese is to be final authority. . . ._: Copyright Japanese Standards
3、Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 06:40:35 MDTNo reproduction or networking permitted without license from IHS -,-,- - JIS B*4A05 A 4933608 0014321 4 UDC 621.934.025.7 JAPANESE INDUSTRIAL STANDARD J I S C
4、ircular Saws with Cemented Carbide Tips B 4805-1989 1. Scope This Japanese Industrial Standard specifies the circular saws with cemented carbide tips to be used mainly for wood workings. ” 2. Definitions For the purposes of this Standard, definitions in JIS B 0172 apply. 3. Types The types of the ci
5、rcular saws with cemented carbide tips shall be classified into 4 types of A, B , C and D of Fig. 1, and combination of these according to the tooth shapes. Fig. 1. Tooth Shapes A B In flank 4. Shapes, N o m view B (Combined- (Flat-tooth) tooth) nclatures and Dimensions C w (Alternate- tooth) D a (H
6、igh 1 /low - tooth) The shapes and nomenclatures of respective parts of the circular saws with cemented cabide tips shall be in accordance with Fig. 2, and the dimensions shall be in accordance with Table 1. n Applicable Standards: See page 8. Copyright Japanese Standards Association Provided by IHS
7、 under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 06:40:35 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S B*4805 89 = 4933608 0014322 b = Thicknesspf body Set 2 B 4805-1989 u A Lateral face Side angle to Side clear
8、ance Ll T z angle SI, s z centre & Fig. 2. Examples of Shapes and Nomenclatures of Respective Parts No. 1 2 In face view In flank view Nomenclature 3 4 Body Outside diameter 5 Tip Bore diameter 6 7 Nomenclature Symbol (Informative reference) D d slit * Pitch Ip Flank Tooth height I h Face Gullet are
9、a Bottom Nomenclature Clearance angle Included angle L Rake angle of tip I Cutting angle Symbol (Informative reference) a Y 6 Ix Cutting edge Tooth thickness I TI II angle Note * There are circular saws with cemented carbide tips which are not provided with slot or these provided with plural number
10、of slits. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 06:40:35 MDTNo reproduction or networking permitted without license from IHS -,-,- Appearance Requirements Table 1. Dimensions 3 B
11、4805-1989 Unit: mm Bore diameter d both thickness TI Thickns of bod3 Informative reference) Number of teeth (pieces) Outside diameter D Basic dimension lasic limension Toler - ance iacic iimension 1.8 2.0 2.4 2.8 3.0 3.2 3.5 asic imension 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.5 - Toler - ance k0.08 Toler- a
12、nce k O . 1 Toler- ance +2 24,32,40 4,60, 72 80,96, 100 120 205 255 305 355 25.4 30 60 85 H 8 3.0 3.2 3.5 4.0 4.5 5.0 2.0 2.2 2.5 3.0 3.2 3.5 4.0 32,M 4,60 72,80 96,100 120,140 405 455 . 510 560 610 Remark: For the basic dimension of the bore diameter, other dimension may be determined as agreed bet
13、ween the parties concerned. 5. Qualities 5.1 Appearance The appearance of the circular saws with cemented carbide tips shall be in accordance with Table 2. Tip There shall be no harmful defects such as I macrostreak-flaws , chippings and crackings. Joint part There shall be no harmful defects such a
14、s clearances and bubbles. There shall be no harmful shear drops and edge chippings, and the surface roughness shall be 3.2 S. The surface shall be flat and smooth, free from such defects as crackings, fissures, burrs, harmful flaws, and rust , and the degree of finish shall be excellent. Finish of c
15、utting edge Body i Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 06:40:35 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S B*4805 89 sl 4933608 0034324 T W
16、Permissible value of runout on peripheral cutting edge (max.) 4 B 4805-1989 Permissible value of runout on side face of tip end (min.) 5.2 Runout The permissible values for the runout of peripheral cutting edge and that of the side face of tip end of the circular saws with cemented carbide, when sub
17、jected to the test specified in 7.3, shall conform to Table 3 . No. 5.3 Tensioning Condition Those circular saws with cemented carbide tips which have been processed with tensioning shall be uniform in tensioning effect on both faces, so that any harmful warp or strain which gives influence on the s
18、awn materials shall not be produced. Name of part Material Remark: Tensioning: generation of harmful deformation due to sawn materials, a treatment to give counter deformation to the saw body in advance. For the purpose of preventing the saw body from 1 Table 3. Runouts Unit: mm Tip K 10, K 20 and K
19、 30 specified in JIS B 4104 or those having performance equal or superior to these. 2 1 Body 0.08 SK 5 of JIS G 441 or steel having performance equal to or superior to this in use, 0.15 0.10 0.20 O. 15 0.20 +I 0.35 5.4 Cutting Quality The cutting quality of the circular saws with cemented carbide ti
20、ps shall be excellent. 5.5 Hardness of Body The hardness of the body used for the circular saws with cemented carbide tips shall be HRC 35 or over. 6. Materials The materials of the circular saws with cemented carbide tips shall be in accordance with Table 4. Table 4. Materials Copyright Japanese St
21、andards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 06:40:35 MDTNo reproduction or networking permitted without license from IHS -,-,- 7. J I S B*4805 89 m 4933608 0034325 3 m 5 B 4805-1989 Test Methods 7.1 Shapes
22、and Dimensions The tests on the shape and dimensions of the circular saws with cemented carbide tips shall be in accordance with Table 5. Table 5, Tests on Shape and Dimensions Test method I Item Outside diameter Bore diameter Measure the outside diameter by using the vernier calipers specified in J
23、IS B 7507 or the metal rule of grade 2 specified in JIS B 7516. Measure the bore diameter by the inside micrometer specified in JIS B 7420 or a plug gauge which has applied the limit gauge tolerance IT 8, as appro- priate, specified in JIS B 7421. Edge thickness Measure the edge thickness by the mic
24、rometer specified in JIS B 7502, the vernier calipers specified in JIS B 7507 or a measuring instrument equal or superior to these. Thickness of body Measure the thickness of body by the micrometer callipers for external measurement specified in JIS B 7502. 7.2 Appearance The appearance of the circu
25、lar saws with cemented carbide tips shall be examined by the visual inspection, and the surface roughness of the cutting parts shall be measured by comparing with the roughness comparison specimens specified in JIS B 0659. 7.3 Runouts 7.3.1 General The runouts of the circular saws with cemented carb
26、ide tips shall be measured as follows: Interpose a circular saw with cemented carbide tip between the flanges of the same diameter from both sides on a flanged test arbor, as given in Fig. 3, and fasten securely with a nut. The outside diameter of the flanges used shall conform to Table 6. In additi
27、on, the dial gauge used in the measurement shall be used with attaching the flat seat type contacting point, as required, to the dial gauge specified in JIS B 7503, Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not
28、 for Resale, 03/12/2007 06:40:35 MDTNo reproduction or networking permitted without license from IHS -,-,- , J I S B*4805 89 m 4733608 081432b 3 m Outside diameter of circular saw with cemented carbide tips 6 B 4805-1989 Flange diameter Fig. 3. Measurements of Runouts for Peripheral Cutting Edges an
29、d Side Face of Tip End 205 Measuring position of runout of perip hera1 Measuring position of runout of side-face of tip end 80 I - Test - arbor Circular saw with cemented carbide tips Table 6. Flange Diameters 255 305 100 355 405 45 5 120 510 560 610 160 7.3.2 Runout of Peripheral Cutting Edge The r
30、unout of the peripheral cutting edge of the circular saw with cemented carbide tips shall be measured as follows: Apply a dial gauge to the peripheral cutting edge from vertical direction to the test arbor, read out the values of dial gauge while gently turning the circular saw with cemented carbide
31、 tips, and consider the difference between the madmum value and the minimum value to be the runout of the peripheral cutting edge. The following method may be applied, otherwise. Place a circular saw with cemented carbide tips on the measuring jig of a universal projector, rotate the tip end part wh
32、ile magnifying to 50 times or over, and consider the difference between the maximum value and the minimum value of the readings on the screen to be the runout of the peripheral cutting edge. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111
33、001, User=Wing, Bernie Not for Resale, 03/12/2007 06:40:35 MDTNo reproduction or networking permitted without license from IHS -,-,- 7 B 4805-1989 Fig. 4. Measurement of Runout of Peripheral Cutting Edge by Universal Projector Screen Circular saw with cemented carbide tips 7.3.3 Runout of Side Face
34、of Tip End The runout of the side face of the tip end of the circular saw with cemented carbide tips shall be measured as follows: Apply a dial gauge to tooth end part from parallel direction to the test arbor , rotate the circular saw quietly , take readings of values thereof , and consider the dif
35、ference between the maximum value and the minimum value to be the measured value. Carry out this procedure on both sides. 7.4 Hardness of Body The hardness of the body shali be measured in ac- cordance with the test method of JIS Z 2245 by using the testing machine specified in JIS B 7726. 8. Inspec
36、tion The inspection of the circular saws with cemented carbide tips shall be carried out on the shape and dimensions, appearance, runouts , tensioning condition, cutting quality and hardness, and the results shall conform to 4. and 5. 9. Package for the purposes of protection against rust, and impac
37、t , safety and others. The circular saws with cemented carbide tips shall be properly packaged 10. Designation of Products The circular saws with cemented carbide tips shall be designated by the number of Standard or title of Standard, outside diameter, tooth thickness , thickness of body , bore dia
38、meter , number of teeth and tooth shape. Remark: The designation of the combined tooth shape shall be as agreed between the parties concerned, Example: JIS B 4805 205 x 1.8 x 1.0 x 25.4 x 60 x A 305 x 3.0 x 2.0 x 30 x 80 x B Circular saws with cemented carbide tips Copyright Japanese Standards Assoc
39、iation Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 06:40:35 MDTNo reproduction or networking permitted without license from IHS -,-,- j J I S BM4805 89 4933608 0034328 7 8. B 4805-1989 11. Marking 11.1 Marking of Products The
40、circular saws with cemented carbide tips shall be marked with the following information on the surface of the products. (1) Dimensions Outside diameter x tooth thickness x thickness of body x bore diameter (D x T , x Tz x d ) (2) Number of teeth (3) Tooth shape (4) Manufacturers name or its abbrevia
41、tion 11.2 Marking of Package The package shall be marked with the information specified in 11.1. concerned. However, a part of these may be omitted as agreed between the parties Applicable Standards : JIS B 0172-Glossary of Terms for Milling cutters JIS B 0659-Roughness Comparison Specimens JIS B 41
42、04-Cemented Carbide Tips JIS B 7420-Limit Gauges JIS B 7421-Tolerances, Allowable Deviations and Permissible Wears of Limit Gauges JIS B 7502-Micrometer Callipers for External Measurement JIS B 7503-Dial Gauges Reading in 0.01 mm JIS B 7507-Vernier Callipers JIS B 7516-Metal Rules JIS B 7726-Rockwel
43、l and Rockwell Superficial Hardness Testing Mac hines JIS G 4401-Carbon Tool Steels JIS Z 2245 Method of Rockwell and Rockwell Superficial Hardness Test Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale,
44、 03/12/2007 06:40:35 MDTNo reproduction or networking permitted without license from IHS -,-,- B 4805-1989 Edition 1 Japanese Text Established by Minister of International Trade and Industry Date of Establishment: 1989-03-01 Date of Public Notice in Official Gazette: 1989-03-03 Investigated by: Japa
45、nese Industrial Standards Committee Divisional Council on Machine Elements Technical Committee on Knives for Industry This English translation is published by: Japanese Standards Association 1-24, Akasaka 4, Minato-ku, Tokyo 107 Japan O JSA, 1989 Printed in Tokyo by Hohbunsha Co., Ltd. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 06:40:35 MDTNo reproduction or networking permitted without license from IHS -,-,-