Хонинговальные головки

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 […]

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 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 […]

The abrasive removal hypothesis states that the material removal occurring during the polishing process is realised because of an abrasive process in which the gen­erally harder abrasive penetrates into the softer workpiece surface and removes material in a similar way as chipping. Abrasive removal is also possible when hard abrasive particles are inserted be­tween two […]

9.2.1 Force Sensors In research, grinding force components are primarily measured by means of piezo­electric sensors [BAUS03, KARP01]. However, an exact force measurement with piezo-electric force sensors is expensive and is thus used industrially only as an exception. For this reason, force sensor plates or rings are being used increasingly in industrial praxis which are […]

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 […]