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1、 J I S B*405L 8 M. 4733608 OOL27Lb b Y UDC 621.922.023 JAPANESE INDUSTRIAL STANDARD Recommendation of Grinding Wheels Translated and Published Japanese Standards Association Printed in Japan 10 s Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/11
2、11111001, User=Wing, Bernie Not for Resale, 03/14/2007 20:51:57 MDTNo reproduction or networking permitted without license from IHS -,-,- - _ _ J I S B*4051 88 W 4933608 0012717 8 In the event of any doubt arising, the original Standard in Japanese is to be final authority. Copyright Japanese Standa
3、rds Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 20:51:57 MDTNo reproduction or networking permitted without license from IHS -,-,- 1. Scope dl) 8 UDC 621.922.023 JAPANESE INDUSTRIAL STANDARD J I S Recommendation of
4、 Grinding Wheels B 4051-1988 This Japanese Industrial Standard specifies the standards of the recommendation for use and selection of the grinding wheels ( 3), hereinafter referred to as the “wheels“, which are mainly used for wet grinding under ordinary grinding conditions ( l ) on usual type grind
5、ing machines and which are intended for achieving a finished surface ( 2 ) of an ordinary grinding degree. Notes ( *) Though ordinary grinding conditions are determined by mutual relations among the wheel diameter and its circumferential speed, work material diameter and its circumferential speed, d
6、epth of cut, feed, etc., here only the range of grinding speed in the case of using the wheels of JIS R 6210 shall be shown as follows: Cylindrical grinding 1700 to 2000 m/min Surface grinding 1200 to 1800 m/min Internal grinding 600 to 1800 m/min Tool grinding 1400 to 1800 m/min Cemented carbide al
7、loy grinding 900 to 1400 m/min (2 ) “Finished surface of an ordinary grinding degree“ means the finished surface of the degree surface roughness neither very precisely finished nor roughly ground and equivalent to “a“ of the . range from 0.8 to 1.6 specified in JIS B 0601. ( ) “Grinding wheels“ main
8、ly means vitrified grinding wheels. 2. Classification The recommendation standards of wheels shall be classified into two classes: the standards for the general metallic materials and the standards for the grinding tools. 2.1 Recommendation Standards for General Metallic Materials The recommendation
9、 standards for the general metallic materials shall be the combinations of the grinding systems and the work materials as given in the following: 2.1.1 The classification of grinding systems shall be as follows: (1) Cylindrical grinding (2) Centerless grinding Applicable Standards: See pages 13 and
10、14. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 20:51:57 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S B*405L 88 U 4733608 OOL27L9 L E 2 B 4051-1988 (3
11、) Surface grinding (4) Internal grinding 2.1.2 The classification of work materials shall be as follows: (i) Steels (a) Plain carbon steels (b) Alloy steels (c) Tool steels (d) Stainless steels (e) Permanent magnet material (2) Cast irons (a) Ordinary cast iron (b) Spheroidal graphite cast iron (c)
12、Malleable cast irons (d) Special cast irons (3) Nonferrous metals (a) Brass (b) Bronze casting (c) Aluminium alloy (d) Cemented carbide alloy 2.2 Recommendation Standards for Cutting Tools The recommendation standards for the cutting tools shall be the combinations of the tool material qualities and
13、 the types of tools. 2.2.1 The classification of the tool material qualities shall be as follows: (1) Tool steel (2) Cemented carbide alloy 2.2.2 The classification of tool names of tool steel shall be as follows: (i) Cutting tool (2) Milling cutter (3) Twist drill Copyright Japanese Standards Assoc
14、iation Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 20:51:57 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S B*q051 88 4933608 0012720 B W (4) (10) 2.2.3 follows: 3 B 4051-1988 Reamer Chaser Tap
15、Hob Broach Pinion cutter Shaving cutter The classification of tool names of cemented carbide alloy shall be as Cutting tool Milling cutter Reamer Bit 3. Recommendation Standards of Wheels The recommendation standards of the Exasive grain, grain size and grade of the wheels shall be in accordance wit
16、h Table 1 (recommendation standards for the general metallic materials), Table 2 :recommendation standards for the cutting tools (tool steel) 1 and Table 3 recommendation standards for the cutting tools (cemented carbide alloy). JIS R 6210. The symbols of the wheels in the Tables are in accordance w
17、ith Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 20:51:57 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S BX4053 88 4933b08 0032723 T 355 and under Over 3
18、55 Over 455 Over 610 to to to 455 incl 320 M (0.75 to 1.0 in pitch) zt 280 L (1.25 to 1.5 in pitch) Plane part Leading part Leading part Flat shape Threaded part ( *O 1 zt 240 K (1.75 to 2.5 in pitch) “ 180 K (3.0 to 4.0 in pitch) Copyright Japanese Standards Association Provided by IHS under licens
19、e with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 20:51:57 MDTNo reproduction or networking permitted without license from IHS -,-,- % J I S B*VO53 88 W 4933608 0032724 5 Outer periphery flute Straight Broach Cross flute - - - Hole - 7 B 4051-1988 Table 2 (Con
20、tinued) Grinding positions Cutting tool Shapes of wheels Wheels For manu- For cutting facturing edge grinding Flute Flat shape WA 60 to 80 M Face I Face Flat shape WA 60 M WA 100 to 120 K Flat shape, both tapered shape and cup shape Flat shape and one side tapered shape Tooth flank Hob WA 46 to 60 I
21、 I Hole I- Flat shape WA 60 K Flat shape and one side. concave shape WA 80 M Flat shape WA 80 to 120 K WA 80 K WA 80 L WA 80 M Flat shape Flat shape WA 80 to 100 H WA 200 H (0.75 max. in module) WA 120 H (i to 1.25 in module) WA 100 H (1.5 to 2 in module) WA 80 H (3 min. in module) WA 80 to 120 I To
22、oth flank ( . l o ) Dish shape Pinion cutter Flat shape Flat shape WA 60 K I Tooth flank I - Dish shape WA 80 to 100 H WA 60 H Flat shape Flat shape WA 60 K Remarks 1. Wheels for manufacture of the threaded part of tap and the tooth flank of pinion cutter have been classified according to the values
23、 of respective pitches and modules usually used. In the case of the cutting-edge grinding of cutting tools such as chasers, broaches and others where. the qualities of machined surfaces are regarded as particularly important, the finished surfaces should preferably be in the degrees taken up in thes
24、e recommendation standards or higher. 2. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 20:51:57 MDTNo reproduction or networking permitted without license from IHS -,-,- I J I S B*405L 88
25、 4933608 0012725 7 - D 150 ( I ) 8 B 4051-1988 - GC 60 J to 80 I - D 200 to 250 ( 1 - GC 80 L GC 80 M Ordinary grinding Dry system Finish grinding W e t system Table 3. Recommendation Standards for Cutting Tools (Cemented Carbide Alloy) - Wheels Cutting tool Shape of wheel - GC 80 to 120 H GC 80 to
26、120 I Dry system Ordinary grinding Flat shape D 150 to 200 ( “) Finish grind in g W e t system Cutting tool - C 80 G C 80 H Cup shape - D 220 ( I ) W e t system Finish grinding - GC 80 to 100 H I Dry system Ordinary grinding - GC 100 H Flat shape - D 100 to 150 ( I ) Milling cutter Cup shape Flat sh
27、ape GC 80 to 100 G Dry system Ordinary grinding Finish grinding W e t system Ordinary grinding Wet system Reamer Bit Finish grinding Wet system Flat shape Dry system Ordinary grinding Ordinary grinding Dry system Cup shape GC 60 J to 80 I Note ( I ) As regards the diamond wheels, the finish of an or
28、dinary grinding degree or better has also been considered and only the grain sizes have been given. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 20:51:57 MDTNo reproduction or networking
29、 permitted without license from IHS -,-,- J I S B*4051 8 W 4733608 001272b 9 = Q 9 I 3 4051-1988 Informative Reference 1 The recommendation of wheels for conditions not defined in the scope of the main text concerning the grinding conditions, conditions of work materials, conditions of machines, etc
30、., are as follows: 1. Variation of Grinding Conditions (4) Concerning grinding speeds: in the case where the grinding speed is not higher than an ordinary grinding speed, and a wheel of a lower grade is recommendable in the case where the grinding speed is not lower than the ordinary grinding speed.
31、 a wheel of a higher grade is recommendable Concerning work material speeds: recommendable in the case where the work material speed is high, and a wheel of a lower grade is recommendable in the case where the work speed is low. a wheel of a higher grade is Concerning wheel diameters and depths of c
32、ut: size or of a lower grade is recommendable in the case where the wheel diameter is large or where the depth of cut is small, and a wheel of a finer grain size or of a higher grade is recommendable in the case where the wheel diameter is small or where the depth of cut is small. a wheel of a coars
33、er grain Concerning work material outside diameters: recommendable in the case of a smaller work outside diameter, and a wheel of a lower grade is recommendable in the case of a larger work outside diameter. a wheel of a higher grade is 2. Conditions of Work Materials (1) Concerning the hardness of
34、work material: recommendable in the case where the work material is comparatively high in hardness among the group of the same quality of work material, and a wheel of a higher grade is recommendable in the case of a softer work material. a wheel of a lower grade is 3. 2) Concerning finished surface
35、: recommendable in the case where the finish degree given in the scope or better is intended, and a wheel of a coarser grain size is recommendable in the case where a rough finish is intended. a wheel of a finer grain size is Conditions of Machines (1) Concerning machine: grinding machine of the hig
36、her rigidity or for that of the smaller vibration, and a wheel of a higher grade is recommendable for a grinding machine of the lower rigidity or for that of the larger vibration. a wheel of a lower grade is recommendable for a (2) Concerning grinding fluid: grade is recommendable in the case of a d
37、ry grinding. a wheel of a coarser grain size and a lower Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 20:51:57 MDTNo reproduction or networking permitted without license from IHS -,-,- 1
38、0 B 4051-1988 Centreless grinding Informative Reference 2 C 46 K The recommendation standards of grinding wheels and the recommendation standards of cutting wheels to nonmetals are given in the following Informative Reference 2 Tables 1 to 3. Surface (segment) grinding 1. Recommendations Standards t
39、o Nonmetals GC 60 J Informative Reference 2 Table 1 Work material Glass Carbon (hard) Pottery Marble Grinding system Wheel (vitrified) Cylindrical grinding Internal grinding Surface (horizontal shaft) grinding I C 60 K Cylindrical grinding I C 3 6 L Centreless .grinding 1 C 3 6 N Surface (horizontal
40、 shaft) grinding I C 24 M Cylindrical grinding C 54 K ( I ) GC 54 K ( I ) Surface (horizontal shaft) grinding GC 36 I C 3 6 M Note ( I ) For the grinding conducted before decoration with patterning porcelain, WA is to be used. Copyright Japanese Standards Association Provided by IHS under license wi
41、th JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 20:51:57 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S B*4051 88 4933608 0032728 2 Work material Plain Soft steel Hard High speed steel . carbon Steels Pipe Stainless steel Permane
42、nt magnet material 11 B 4051-1988 Wheels Dry system W e t system A 30 TB A 46 TR A 36 OB A 46 OR A 36 PB A 46 OR A 36 RB A 60 PR A 30 PB A 46 LR A LB A 80 KR o Bar Pipe 12. Recommendation Standards for Cutting. Wheels i 21 A 24 TB A 60 NR A 100 PB A 80 QR 2.1 Metal Cutting Wheels (B: Resinoid Bond,
43、R: Rubber Bond and M: Metal Bond Sprue Hard Informative Reference 2 Table 2 A 24 PB - A 30 OB - I Cast iron I A 36 PB I A 46 NR Copper Brass Bronze Sprue A 24 RB A 46 PB A 60 NR Pipe A 80 QB A 120 PR Sprue A 24 PB Aluminium sprue I A 24 RB I - Cemented carbide alloy Note () The range of ordinary gri
44、nding speed in the case of cutting shall be 2700 to 3600 m/min. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 20:51:57 MDTNo reproduction or networking permitted without license from IHS
45、-,-,- 12 B 4051-1988 2.2 Bond) Nonmetal Cutting Wheels (B: Resinoid Bond, R: Rubber Bond and M: Metal Informative Reference 2 Table 3 Wheels Work material Dry system Carbon C 46 NB Wet system C 46 NR Brick I C 24 RB Slate 1 C 24 OB Concrete I C 24 VB 1 Soft 1 GC 30 QB Pottery I Hard 1 D 80 M C 120 L
46、R C 36 LR Tile C 24 OB Glass plate C 80 NR D 100 M Quartz D 80 M Granite C 24 OB Marble C 30 PB D 36 M Plastics I C 36 KB Ebonite 1 C 36 LB Hard rubber hose I C 30 KB Remark: The grain sizes and grades of resinoid bond wheels and rubber bond wheels are presented as rough estimates and the correspond
47、ence of those grade symbols to soft, medium and hard is given as follows: Soft Medium Hard J K L M N O P Q R S T U V W X Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 20:51:57 MDTNo repro
48、duction or networking permitted without license from IHS -,-,- J I S B*Ll053 88 4933608 0032730 O 13 B 4051-1988 Applicable Standards: JIS B 0601-Definitions and Designation of Surface Roughness JIS G 3101-Rolled Steel for General Structure JIS G 3201-Carbon Steel Forgings for General Use JIS G 3444-Carbon Steel Tubes for Gener