Recommended for applications where cut quality and surface finish are very important. Compared to their sintered (metal bond) counterparts. Resin Bond Diamond & CBN offer a far superior surface finish than any other bond type. Recommended cutting, grinding, and polishing hard, brittle, or delicate materials including ceramics, glass tubing, optical glass, carbides, composites, and exotic metals where low heat generation or improved surface finish is desired. Must be used at higher speeds. CBN, Resin bond Tools are recommended for cutting and grinding hard steels above Rc 60 at high speeds.
The diamond and CBN crystals used for resin bond wheels are different from those used for metal bonds as well. Diamond Crystals used for resin bonds are frequently polycrystalline, low-strength, metal-clad diamond crystals. They are irregular-shaped and easy to microfracture. This creates new cutting edges constantly while cutting, giving the self-sharpening characteristic for which the resin bond is known. Often metal coated and unevenly shaped diamond crystal is preferred in the manufacture of this bond type as it helps further improve crystal retention. Resin Bond Diamond Tools are typically used with coolant, but can also be used dry on many applications. By adding specialized filler and/or using the specialized coated diamond crystal to reduce heat generation.