（1）Binder selection
1. CBN grinding wheel ceramic France: The main object is grinding hard and tough material such as: steel, chilled cast iron, high speed steel, tool steel, powder metallurgy steel, hardened steel, tool steel, cast iron, nickel, chromium chilled cast iron, eutectic cast iron, titanium, high-temperature alloys, iron group metals.
2. Ceramic diamond wheel method: The main object is grinding hard and brittle materials such as: Carbide, optical glass, semiconductor materials, magnetic materials, agate, crystal, gemstones.
3. Porcelain France CBN / Diamond mixed abrasive wheel: cast iron, cast steel, rubidium iron boron.
4. CBN / Diamond Wheel electroforming: for the stator curve grinding wheel dressing molding, optical glass lens grinding, carving marble molding, tungsten steel grinding, profile grinding rubidium iron boron, ceramic processing and other broken hard workpiece forming.
（2）Size selection：
Coarse abrasive particle size is high production efficiency, but also the corresponding parts grinding surface roughness, and therefore meet the work surface roughness should try to use the case of coarse-grained.
Resin grinding wheel should try to use 60 # to 5000 # abrasive; ceramic France wheel should choose 46 # ~ 2000 # abrasive; electroforming wheel should use 24 # ~ 800 # abrasive.
Wheel size and processing of coarse-grained relations
Grain size number | The surface roughness of the work can be achieved | ||
The former Ministry of standard | GB | Resin products | Porcelain France products |
80 # ～100 # | 70/80～100/120 | —— | △ 6～△8 |
100 # ～150 # | 100/120～140/170 | △ 8～△9 | △ 7～△9 |
180 # ～240 # | 140/170～230/270 | △ 9～△10 | △ 8～△9 |
280 # ～W20 | 230/270～12-22 | △ 10～△11 | △ 9～△12 |
W14～W5 | 8-12～4-8 | △ 11～△12 | —— |
W5～W0.5 | 4-8～0-0.5 | —— | —— |
Grinding process and the relationship between particle size
Grinding work order | With a particle size selected | |
The former Ministry of standard | GB | |
Coarse grinding | 80 # ～120 # | 70/80～120/140 |
Coarse precision | 120 # ～180 # | 120/140～200/230 |
Accuracy | 180 # ～W40 | 200/230～36-54 |
Polishing | W40～W1 | 36-54～0.5-1 |
