Хонинговальные головки

In order to appraise and examine grinding wheels, numerous requirements are placed on the testing method used. The most important are that the testing method is damage-free, is independent of the attendant and provides reproducible results. These requirements are oriented by the conditions of the call for proposals of the Vereins Deutscher Werkzeugmaschinenfabriken e. V. […]

Case-hardened steels include unalloyed construction steels, grade and special steels as well as alloyed special steels. Common to all of these is a relatively low carbon content (C < 0.2 %). Typical carbon contents and alloying components of case-hardened steels are represented in table 4-2. Element C Si Mn P S Amount in % 0.07 […]

In oxidic glasses, both covalent and ionic bonds predominate. They generally dis­play strong polarisation, which also causes its characteristically brittle removal behaviour. Should material shifting lead to the fracture of these bonds, the struc­ture of glass is destroyed irreparably as opposed to metals, the free electrons of which can form new bonds. Figure 4-18 shows […]

Setting back the bond is designated as sharpening. After profiling with diamond dressing tools, the wheel surface can be significantly flattened, leaving insufficient chip space for swarf and cooling lubricant transport in the grinding process (Fig. 6- 8. above). The sharpening process sets the bond back and thus creates the de­sired chip space (Fig. 6-8 […]

Here, we must differentiate between two methods. In external cylindrical periph­eral plunge grinding (infeed grinding), the grinding wheel is arranged normally to the workpiece rotation axis, while in external cylindrical peripheral longitudinal grinding the grinding tool is moved equidistantly to this axis. Both grinding meth­ods generally work with up grinding. In up grinding, the vectors […]