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Selecting the proper abrasive tool for material processing is very important. Diamond and CBN (Cubic Boron Nitride) are two of the most efficient super- abrasive materials. However, they are not interchangeable. They are optimized for particular material families. An inappropriate tool can cause poor surface finish, slow cutting speeds and premature tool wear. This article will introduce you to their different applications, the main purpose of each of them and more specifically diamond wheels for glass and CBN Wheels for material which can be found alloy.
Diamond Wheels are the Best for Glass Grinding
When smoothing and shaping glass, diamond abrasives are the smoked banana! It is due to the inherent characteristics of constituents involved. Glass is a hard but brittle substance, consisting of silicon dioxide. Diamond is the hardest known material and perfectly capable of efficiently cutting.
The diamond grains in their metal grind against the work piece during rotation, thereby providing as new cutting points. They break the glass with such control so that and end up with a clean, chipping free cut. The angular corners of the diamond particles are ideal for cutting through the glass with minimal subsurface damage. That makes for a smooth finish and high edge quality -- important for everything from making mirrors and windows, to intricate artistic glasswork and electronic display covers.
Our diamond glass cutting wheels, it is just another reason that Zhengzhou Ruizuan Diamond Tool Co., Ltd. can claim to be one of the best in the business Our diamond glass cutting wheels are developed with a bond system expressly for the job at hand and gives you much more than just an excellent finish on your product. The bonding will not only hold the diamonds, but it can provide the controlled and even wear required to ensure that new sharp diamond crystals are brought to the surface during grinding. This self-sharpening behavior allows TK wheels to remain open and free cutting, resulting in a consistent performance and service life that provides a good return on investment for any glass working facility.
Alloy Grinding: CBN Wheels are the Right Answer
Now, as hard as diamond is, it does have a major weakness: Diamond reacts chemically with steel–a ferrous material that comprises some 75 to 80% of most tool sheet metals–at the high temperatures generated while grinding. This reaction results in a fast diamond abrasive wear which renders it impractical and uneconomical for most alloy applications. And this is where CBN shines.
The second hardest material after diamond, Cubic Boron Nitride is now laminated to ferrous metals using a proprietary process technology with great success. What this means in practice is that when grinding hard, difficult to machine materials such as tool steels, stainless steel and nickel-based superalloys buying diamond wheels well and truly pays for itself because you still have cutting edges left after 5,000 pins.
With alloy grinding, CBN uses include greatly improved productivity and precision. They run at faster cutting speeds and produce less heat than other materials, thus they prevent thermal damage and avoid burns on the surface of the workpiece or micro-cracks. The latter is essential for integrity and life of critical alloy components. They also hold their shape really well for crazy long periods of grinding on tight tolerances. When you're machining high-strength alloys, being able to invest in CBN technology from a specialist like Zhengzhou Ruizuan Diamond Tool Co., Ltd. means less downtime grinding wheels and reduced cost per part ground with better finish quality.
Selecting the Best Choice for Your Application
The decision between CBN and diamond depends fundamentally on your workpiece material. As a basic rule of thumb, keep in mind that: the best types of contact wheel are meant to be used on non-metallic and extra-hard materials such as glass, ceramics, or carbide. CBN wheels, on the other hand, are designed only for ferrous materials.