Хонинговальные головки

In polishing, abrasive particles finely dispersed in a usually liquid medium are guided over a surface. Material removal is achieved through an interaction of chemical and mechanical mechanisms. In chemo-mechanical polishing, material removal is the result of a chemical re­action between the workpiece surface and the polishing grains. The product of the reaction is then […]

One cutting method that is still widespread today is inner diameter (ID) slicing. In this method, a rotating steel cutting blade serves as the tool. These are fastened at their outer diameters, similarly to the clamping mechanism used for drums. The actual cutting operation takes place in the centre of the saw blade, the inner […]

6.4.1 Gear Grinding A special area of application in grinding is the finishing of tooth flanks. Cutting an involute profile requires the use of methods specifically designed for tooth flank machining, these being subdivided according to method kinematics into generat­ing and profile methods. In order to fulfil performance, noise emission and wear requirements there are […]

6.6.1 External Cylindrical Peripheral Plunge Grinding In the end machining of camshafts for engines, not only the control cam, which activates the valve tappets, but also the bearing carrier must be machined (Fig. 6­136). In order to guarantee smooth operation, the bearing carriers are tolerated with respect to surface roughness, roundness and concentricity. The material […]

In addition to the variables involved in the honing process, the most important in­fluence on the work result are the specifications of the honing stones, i. e. grain type, grain size, type of bond, hardness and treatment. With respect to grain type, two groups of materials are distinguished according to their properties. As in grinding, […]

In polishing, as in lapping, the surface of the workpiece to be processed and the tool surface slide on each other. A polishing slurry is inserted between them which is composed of an abrasive and a generally water-based fluid. The active system is illustrated in Fig. 8-16. As opposed to lapping, however, much smaller abrasive […]

9.2 The Necessity of Process Monitoring Increasing demands on quality and higher time and cost pressures require more process security. This however has been made increasingly difficult by expanding process and component complexity [KLOC01]. An economical utilisation of automatic grinding processes presupposes their behaviour to be reproducible. Despite the increased expenditure on quality control and […]

While deviations in macrogeometry and microgeometry, which considerably in­fluence the performance and noise emission of the gear, can be more or less marked depending on the demands placed on component quality, the external zone of the machined tooth flank must be devoid of influence on structure. Damage in the tooth flank’s external zone via textural […]

When manufacturing a CVT shaft (continuous variable transmission), an conical area is machined. This component is used in automobile transmission. There is a belt on the cone that transfers force in a frictionally engaging manner. The trans­mission can be altered continuously by the position of the belt on the cone. Ac­cordingly, the cone is a […]

In honing, the work result must also be seen as a function of the initial state of the workpiece. Not only do the properties of the workpiece material play a role in this, but also the initial conditions resulting from pre-machining. As in grinding, the workpiece surface has an influence on the resulting surface roughness […]