Diamond And CBN Grinding Wheels Are Key Tools In Modern Cutting Technology’S March Toward Efficiency, Precision, And Environmental Friendliness. Correctly Selecting And Using Them Can Significantly Improve Production Efficiency And Product Quality While Reducing Overall Costs.
When Selecting A Grinding Wheel, The First Step Is To Determine The Abrasive (Diamond Or CBN) Based On The Chemical Composition Of The Material. The Second Step Is To Select The Bond Based On The Processing Method, Efficiency And Precision Requirements.
01 Diamond Cutting Off Wheel
1. Resin Bond Diamond Cutting Wheel
Properties: Good Elasticity, Good Self-Sharpening Properties (Abrasive Grains Easily Fall Off After Blunting, Revealing New Grains), High Surface Finish, But Relatively Poor Wear Resistance.
Main Cutting/Processing Materials:
(1).Carbide: Sharpening And Fine Grinding Of Cutting Tools And Molds.
(2).Ceramics: Fine Grinding And Polishing Of Electronic And Structural Ceramics Such As Alumina And Zirconia.
(3).Glass And Crystals: Fine Grinding And Chamfering Of Optical Glass, Crystal, And Semiconductor Wafers.
(4).Stone: Polishing Of Marble And Granite.
Applications: Fine Machining And Polishing Processes That Require High Surface Quality And Finish, As Well As Heat-Sensitive Materials.
2. Metal Bond Diamond Cutting Off Wheel
Properties: Strong Holding Force, Excellent Wear Resistance, Extremely Long Life, And Good Shape Retention, But Poor Self-Sharpening Properties And Prone To Clogging.
*Sintered Metal Bond Cutting Wheel Main Cutting Materials:
(1).Stone: Marble, Granite, And Artificial Quartz Saw Blades (This Is The Largest Application Area).
(2).Glass: Deep Cutting And Rough Grinding.
(3).Ceramics: Tile Cutting And Rough Grinding Of Ceramic Components.
(4).Concrete/Asphalt: Road Cutting Blades.
(5).Gemstone: Agate And Jade Cutting.
Applications: Heavy-Duty, High-Efficiency Rough Cutting And Grinding Operations Requiring High Wear Resistance And Long Life.
*Electroplated Metal Bond Diamond Cutting Wheel:
Features: Simple Manufacturing, High Grit Protrusion, And Very Sharp, But Typically Disposable (The Blade Is Discarded Once The Layer Is Worn Away).
Main Cutting/Processing Materials:
(1).Carbide: Profile Grinding And Small Saw Blade Cutting.
(2).Ceramics/Glass: Grooving, Cutting, And Trimming.
(3).Single Crystal Silicon/Silicon Carbide: External Cylindrical Cutting And Slicing.
Applications: Complex Shaped Grinding Wheels, Small Cutting Blades, And Applications Requiring Extremely Sharp Edges.
3. Vitrified Bond (Ceramic Bond) Diamond Cutting Off Wheel:
Characteristics: Performance Lies Between That Of Resin And Metal. Features Include High Bond Strength, Excellent Self-Sharpening Properties, Excellent Heat Resistance, Easy Trimming, And Adjustable Porosity.
Main Cutting/Processing Materials:
(1).Carbide: High-Efficiency, High-Precision Grinding, Replacing Some Resin-Bonded Grinding Wheels.
(2).Advanced Ceramics: High-Efficiency Grinding Of Structural And Functional Ceramics.
(3).Magnetic Materials: Precision Machining Of Permanent Magnets Such As NdFeB.
Applications: Semi-Finishing And Finishing Processes That Balance Efficiency, Precision, And Surface Quality Are The Current Trend.
*Avoid Processing Iron-Based Metals: Diamond (Carbon Element) Will Chemically React With Iron-Based Elements At High Temperatures, Causing The Grinding Wheel To Wear Rapidly. Therefore, It Must Never Be Used To Cut Steel, Iron And Other Materials.
02 CBN (Cubic Boron Nitride) Cutting Off Wheels
CBN Grinding Wheels Are Specifically Designed For Machining High-Hardness Ferrous Metals. The Selection Of The Bond Is Similar To That Of Diamond.
1. Resin Bond Cbn Cutting Wheel
Features: Excellent Surface Quality And Self-Sharpening Properties, But Relatively Poor Wear Resistance.
Main Materials:
(1).High-Speed Steel (HSS): Sharpening And Fine Grinding Of Tools, Drills, And Taps.
(2).Hardened Steel: Final Grinding Of Molds And Gears Requiring High Surface Roughness.
Applications: Fine Grinding And Polishing Of High-Hardness Steel, Requiring An Extremely High Surface Finish.
2. Vitrified Bond Cbn Cutting Wheel
Features: Currently The Mainstream Choice For CBN Grinding Wheels. High Bond Strength, Excellent Self-Sharpening Properties, Excellent Heat Resistance, Easy Dressing, And High Efficiency.
Main Materials:
(1).Hardened Steel/Mold Steel: High-Volume, High-Efficiency Grinding Of Automotive Parts, Bearings, And Molds.
(2).High-Strength Cast Iron: Honing And Finishing Of Engine Blocks And Cylinder Heads.
(3).Nickel-Based/Cobalt-Based Superalloys: Grinding Of Aerospace Engine Blades And Turbine Disks.
Applications: High-Efficiency, High-Precision, And High-Stability Automated Production Lines Are The Preferred Choice For Modern Precision Manufacturing.
3. Metal Bond Cbn Cutting Wheel
Properties: Extremely Long Life And Excellent Shape Retention, But Poor Self-Sharpening, High Grinding Forces, And High Heat Generation.
Main Materials Processed:
(1).Carbide: Competes With Diamond Grinding Wheels, But Is Used In Certain Specific Applications.
(2).Glass/Ceramics: Honing And Precision Form Grinding Of Superhard Materials (Rarely Used).
Applications: Form Grinding Or Electrolytic Grinding Of Superhard Materials Requiring Extremely High Shape Accuracy And Minimal Wear. Rarely Used In Ordinary Steel Cutting.
| Bond Types | Key Features | Diamond Grinding Wheel Applicable Materials | CBN Grinding Wheel Applicable Materials |
| Resin Bond | Excellent self-sharpening, high finish, poor wear resistance | Fine grinding/polishing of carbide, ceramics, and glass | Fine grinding/polishing of high-speed steel and hardened steel |
| Vitrified Bond | High efficiency, self-sharpening, heat-resistant, easy to trim | High-efficiency/precision grinding of carbide and ceramics | High-efficiency/precision grinding of hardened steel, cast iron, and high-temperature alloys (mainstream) |
| Metal Bond | Wear-resistant, long life, good shape retention, poor self-sharpening | Rough cutting/grinding of stone, glass, and ceramics | Form grinding of carbide and ceramics (less common) |
| Electroplating Bond | Extremely sharp, disposable, well-formed | Cutting/shaping of carbide, silicon, and gemstones | Specialized applications (such as gear root grinding) |
