There is ordinary and super-abrasive honing stick (stone). This article mainly introduces the ordinary honing stick (stone).

Structural features of honing stick (stone)

Honing stick (stone) is a kind of abrasive tool which is hand-held or installed on a honing machine. Most of them are the vitrified bond, and few are resin bond (such as rectangle and square). There are square, rectangular double-sided, triangular, knife-shaped, cylindrical, semicircular, and other shapes. Some square and rectangular are used for honing the cylinder body of automobiles, tractors, airplane air compressors, or used for super finish honing bearing rings. Most of the rest is used for manual operation, for honing various tools and parts.

Honing stone (stick) is composed of abrasives, bond, and pores. The band adheres to the abrasive. Abrasive is the main raw material of honing stone, and many edges and corners exposed on the surface of honing stone are the cutting tools of the workpiece. The bond agent is the material of bonding abrasive, and it has enough strength to ensure the self-sharpening and durability of honing stick (stone) when honing. The pores are the gaps between abrasive and bond, and it helps to remove chips and heat emission when honing.

The honing stick (stone) mainly used abrasive to hone the surface, and it has good finish surface and high precision. And the cutting edge of the honing stick (stone) has a self-sharpening effect.

honing sticks stone

Types and specifications of the ordinary honing stick (stone)

There are vitrified bond and resin bond honing stick (stone).

Vitrified bond honing stick (stone) include square, rectangular, triangular, semicircular, cylindrical, knife-shaped, and etc.

Resin bond honing stick (stone) include honing platform stone.

Abrasive Types

Code Types Features Applications
A Brown fused alumina High hardness and toughness Used for medium and high strength metal materials, such as carbon steel, alloy steel, forged iron, hard bronze, etc.
WA White fused alumina Higher than the hardness of brown fused alumina, and abrasive grain is easily broken, sharp edges and corners, good cutting performance and small heat Used for grinding hard and heat sensitive steels, such as hardened steel, high carbon steel, high- speed steel, alloy steel, etc. It is mainly used for the cutting tool, dies, gear, thread, thin-walled parts, etc.
PA Pink fused alumina Similar to the hardness of white fused alumina, cutting edge of abrasive grain is sharp, good retention of edges and corners, high durability. Used for grinding hardened steel, alloy steel tools and workpieces, precision grinding of measuring tools and instrument parts, and forming grinding.
SA Monocrystalline alumina Higher than the hardness of brown and white fused alumina, single particle spherical crystal, good cutting edges, strong crushed resistance. Used for grinding stainless steel, high vanadium high-speed steel, etc. with high hardness, high toughness, easy deformation, and easy burn.
MA Microcrystalline alumina Abrasive grains are composed of micro-crystals with high toughness, high strength, and good self-sharpening. Used for grinding bearing steel, stainless steel, and special ductile iron, etc. It is used for forming grinding, cut-in grinding, and another precision grinding.
A/WA Brown and white fused alumina mixed abrasive Advantages of blown and white fused alumina. Used for grinding axle and other workpieces made from ductile iron

 
GC Green silicon carbide High hardness, high brittleness, sharp abrasive grains, good thermal conductivity Used for grinding cemented carbide tool, workpieces, non-ferrous metals, non-metal and so on.

 
C Black silicon carbide High hardness, high brittleness, sharp abrasive grains, certain thermal conductivity. Used for grinding non-metallic materials

 

honing stone

Bond Type of Abrasive

Code Type  Features Applications
1 V Vitrified It has good heat resistance and chemical stability, good corrosion resistance, high porosity, and can maintain the geometric shape of the abrasive tool better, but its brittleness is larger. Used for internal grinding, external grinding, centerless grinding, surface grinding, thread grinding, forming grinding, grinding and honing, super finish grinding, etc.
2 B Resin It has high strength and certain elasticity, good self-sharpening, low heat resistance, and short production cycle. Used for grinding ingots, casting burrs, surface finishing, cutting, polishing of stone and so on.

 

The Grit of Abrasive Powder Table

Bonded Abrasive Coated Abrasive
International Standard ISO8486:2-1996  

 

Japanese Industrial Standards

 International Standard ISO6344-3:1988
Chinese Standard GB/T2481.2-1998 Chinese StandardGB/T 9258.3-2000
Western  European Standard FEPA42-GB-1984 Japanese  Standard      JIS R 6012-1991
German Standard DIN69101.1-1981  

Western European Standard FEPA31-GB1971
Grit D50(μm) Grit    D50(μm) Grit D50(μm)
Sedimentation Tube Method Sedimentation Tube Method Resistance Method Sedimentation Tube Granulmeter
#240 60.0±4.0 57.0±3.0 P240 58.5±2.0
F230 55.7±3.0 #280 52.0±3.0 48.0±3.0 P280 52.2±2.0
F240 47.5±3.0 #320 46.0±2.5 40.0±2.5 P320 46.2±1.5
F280 39.9±1.5 #360 40.0±2.0 35.0±2.0 P360 40.5±1.5
F320 32.8±1.5 #400 34.0±2.0 30.0±2.0 P400 35.0±1.5
F360 26.7±1.5 #500 28.0±2.0 25.0±2.0 P500 30.2±1.5
#600 24.0±1.5 20.0±1.5 P600 25.8±1.0
F400 21.4±1.0 #700 21.0±1.3 17.0±1.3 P800 21.8±1.0
F500 17.3±1.0 #800 18.0±1.0 14.0±1.0 P1000 18.3±1.0
#1000 15.5±1.0 11.5±1.0 P1200 15.3±1.0
F600 13.7±1.0 #1200 13.0±1.0 9.5±0.8 P1500 12.6±1.0
F800 11.0±1.0 #1500 10.5±1.0 8.0±0.6 P2000 10.3±0.8
F1000 9.1±1.0 #2000 8.5±0.7 6.7±0.6 P2500 8.4±0.5
F1200 7.6±0.5 #2500 7.0±0.7 5.5±0.5
#3000 5.7±0.7 4.0±0.5
#4000 3.0±0.4
#6000 2.0±0.4
#8000 1.2±0.3

Abrasive Grit and Size Table

Grit

GR.NO

 Chinese

GB2477-83

 Japanese

R6001-87

 USA

ANSI(74)

 International

FEPA(84)

 FEPA(71)
4 5600-4750 1 5600-4750 5600-4750   1
5 4750-4000 1 4750-4000 4750-4000 1
6 4000-3350 1 4000-3360 4000-3350 1
7 3350-2800 1 3360-2830 3350-2800 1
8 2800-2360 2830-2380 2830-2380 2800-2360 2800-2360
10 2360-2000 2380-2000 2380-2000 2360-2000
12 2000-1700 2000-1680 2000-1680 2000-1700 2000-1700
14 1700-1400 1680-1410 1680-1410 1700-1400 1700-1400
16 1400-1180 1410-1190 1410-1190 1400-1180 1400-1180
20 1180-1000 1190-1000 1190-1000 1180-1000 1180-1000
22 1000-850 1000-840 1000-850 1000-850
24 850-710 840-710 840-707 850-710 850-710
30 710-600 710-590 707-595 710-600 710-600
36 600-500 590-500 595-500 600-500 600-500
40 500-425 500-420 500-425 500-425
46 425-355 420-350 420-354 425-355 425-355
54 355-300 350-297 354-297 355-300 355-300
60 300-250 297-250 297-250 300-250 300-250
70 250-212 250-210 250-210 250-212 250-212
80 212-180 210-177 210-177 212-180 212-180
90 180-150 177-149 177-149 180-150 180-150
100 150-125 149-125 149-125 150-125 150-125
120 125-106 125-105 125-105 125-106 125-106
150 106-75 105-74 105-74 106-75 106-75
180 90-63 88-63 88-63 90-63 90-63
220 75-53 74-53 74-53 75-53 75-53
240 75-53 74-53

Abrasive Application of Different Grit

Grain No. Applications
1 4,5,6,8,10,12,14,16,20,22,24,30 For rough grinding and cutting
2 36,40,46,54 For semi-finish grinding
3 60,70,80,90,100 For finish grinding
4 120,150,180,220,240，W63,W50,W40,W28,W20 For grinding and thread grinding
5 W14,W10, W7, W5, W3.5,W2.5,W1.5,W1.0,W0.5 For mirror polishing and finish polishing

 

In future articles, we will also describe super-abrasive honing stick (stone) and honing tools.