Coated abrasive tools are composed of abrasive grits that are held by a bond on backing material (Fig. 4.4). Coated abrasive tools are belts, pads, or discs. Abrasive discs are used for preparing car bodies before painting [BORK92, p. 42 ff.]. Deburring, roughing, and finishing are important operations with coated tools in the metal grinding field [KONI86]. Coated abrasive tools cover a bigger market volume than grinding wheels [ASAM10, p. 312].
Figure 4.4 shows the abrasive layer structure and common designs of coated abrasive tools. Grinding engagement between grinding belt and workpiece is
Size coating (also coating)
Make coating (bond, glue)
One or more backing layers (base)
Fig. 4.4 Coated abrasive tools
established by contact shoes or wheels or the engagement can take place on the free part of the grinding belt without a contact element [KONI86].
Coated abrasive tools consist of the components in Table 4.3, namely grits, backing material, make coating, size coating, and splice. In addition, abrasive grit size, shape and size of the abrasive tool are important characteristics [BORK92, p. 42 ff.].