Хонинговальные головки

The future of manufacturing companies depends largely on their ability to adapt to swiftly changing global conditions. These are exemplified by international compe­tition, rapidly growing intercommunication and the increased significance of envi­ronmental issues [KLOC98a, ENGE02]. Precision machining with geometrically undefined cutting edges represents a key production engineering technology with high efficiency, security and machining quality. […]

According to DIN 69 111, for all abrasive tools excepting loose abrasives, indi­vidual grits are bonded with each other and with the backing material. In practice, all components of the grinding wheel, with the exception of the abrasive grit, are comprised under the designation of “bond” [COLL88]. Bonds have the task of adhering to the […]

For belt grinding, abrasive grits on a flexible backing material are used as tools. Chip formation takes place as the abrasive belt is engaged with a target material over a contact element, generally a roller or support element. Besides fine grinding and deburring for glass, ceramics, wood and metal, it is also possible to reach […]

Due to strain, steels destined for roller bearings have a high level of hardness (52 — 65 HRC), a high degree of purity, an even structural configuration and high resis­tance to wear. Chemical composition, melting and heat treatment are decisive for the obtainable structure and thus for the necessary properties of roller bearing steels. In […]

In the grinding process, all the components involved — the grain material (includ­ing the bond) as the body, the workpiece material as the counter-body, cooling lu­bricant as the intermediate substance and air as the environmental medium — form a tribological system (Fig. 5-1). Thus, in order to optimise the cooling/lubrication system, all components involved as […]

Working with materials that are hard to machine generally causes problems with respect to the lifetimes of the grinding wheels used and thus with respect to the performance of the grinding process. Large amounts of grinding wheel stress lead to increased grain breakaway, especially in the case of conventional grinding wheels. Grinding wheel wear, which […]

Among cylindrical grinding techniques, centreless methods have an exceptional position with respect to their process structure and area of application. Centreless grinding’s main area of use is in large batch and mass production. While the workpiece is led during grinding between centres in its rotation axis, its position in centreless grinding is determined by a […]

Knowledge of the basic principles of a machining method is an essential prerequi­site for the full realisation of its potential. Yet research into the essential features of material removal with geometrically undefined cutting edges is beset with great difficulties. The determination of the cutting edges used in the procedure is ham­pered by the extremely complex […]

The resin bond consists of a synthetic resin or synthetic resin combination with or without fillers. For particular grinding wheel types, applications or different fabri­cation methods, there are many resins available. In the case of the dry mix method, phenol resol is used for the grit wetting as well as a phenol resin powder based […]

The production process in the manufacture of abrasive tools starts with the back­ing material. This is furnished with a corresponding base binding, and, after apply­ing the abrasive grits, the top bonding layer is laid on. Backing Material Depending on the expected thermal and mechanical strains, paper, fabric, vulcan­ized fibre or combinations of these materials are […]