According to DIN 69 111, grinding components with bonded abrasives are comprised of straight, conical, and reduced grinding wheels, abrasive cutting discs, grinding wheels affixed to support discs, cup grinding wheels, bent grinding wheels, grinding segments, mounted points, honing stones and oil stones (Fig. 310). Ignoring form and dimensions, all of these types exhibit the […]
Рубрика: Manufacturing Processes 2
The Machinability of Various Materials
4.1 The Concept of “Machinability’’ in the Grinding Process Machinability is understood as a property of a material that allows for chip removal under given conditions. It thus describes the behaviour of a material during chip forming. The machinability of a material must always be considered in conjunction with the machining method, the tool and […]
Grinding Nickel-Based Materials
4.6.1 Construction and Structure The specific properties of these materials, adapted to the respective field of application, are essentially contingent on chemical composition, possible cold forming and the heat treatment method. Corresponding to their most important alloying elements, nickel-based alloys can be subdivided into the following main groups [DIN42, DIN43, DIN44, DIN45, EVER71]: I. nickel-copper […]
The Influence of Cooling Lubrication on the Grinding Process
5.3.1 Cooling Lubricant Type The various cooling lubricants exhibit characteristic properties and also influence the process parameters and its output. Varying friction conditions affect the cutting edge application. In the following, the influence of the cooling lubricant on the cutting forces, heat, surface quality and grinding wheel wear will be demonstrated. For smaller chip thicknesses, […]
The Dressing Speed Ratio qd
One important variable in dressing with rotating dressing tools is the dressing speed ratio qd, defined as the ratio between the peripheral speed of the dressing roller and the peripheral speed of the grinding wheel, as shown in equation 6-9. For down dressing, this value is positive, for up dressing it is positive. From the […]