The most common bond used for diamond and CBN wheels is the resin bond. OD and ID circular grinding and surface grinding, indeed almost all tool grinding operations are mainly carried out using resin-bonded wheels. This bond combines a few very good characteristics, such as good grinding properties, low grinding pressure, low heat generation, long tool life and low price. All this together results in favourable cost effectiveness.
The hybrid bond is used in plunge grinding, for example flute grinding. The materials for which it is available include VHM - M23 and HSS - M91. The very high stock removal rate of this bond means that processing times can be achieved which are considerably shorter than those achieved with resin-bonded grinding wheels.
The metal bond is in most cases built on a bronze basis.
Its special advantages include good edge and profile strength.
It is most economically used for wet-grinding ceramics, glass, stone, concrete, etc.
With metallic materials, the metal bond is essentially recommended for profiled and deep grinding.
The vitrified bond is mainly used in combination with CBN grit for machining long-chipping materials. This bond provides more space for long chips than the other bond types. Another positive characteristic of the vitrifed bond is that it is easier to dress than a resin or metal bond. In general, the same dressing methods as for ceramic wheels in aluminium oxide or silicon carbide can be used.
Vitrified wheels are generally used in large-series production.The compound should be selected in consultation with one of our technicians.
In the case of the galvanic bond, the diamond or CBN grit is bonded to the carrier body with a galvanically applied nickel coat. This bond is very open, grinds aggressively and, with an appropriately selected grain, is suitable for grinding steel, carbide, glass, ceramics and plastics. The galvanic bond is normally applied as a single layer, i.e. the layer thickness corresponds more or less to the grit size, so it cannot be dressed or reprofiled once worn.