Хонинговальные головки

The production of vitrified bonds also begins with mixing the components. By covering the grits with a temporary binder (e. g. organic adhesive and water), suf­ficient form stability can be achieved in the blank. The pourable mixture is trans­ferred to the mould and compressed via pressing and shaking methods. In the casting method, the vitrified […]

The strength of steel can also be increased by hardening and subsequent temper­ing. In tempering a material, the martensite formed during hardening is specifi­cally brought again to partial disintegration by re-heating, thereby relaxing the crystal lattice. At low annealing temperatures, carbon precipitates in a finely dis­tributed fashion, while at higher temperatures coarser cementite grains develop […]

The machinability of brittle materials significantly variable in contrast to metallic materials due to the characteristics described above. When machining brittle materials, as opposed to machining ductile materials, we proceed from the assumption that, with increasing penetration depths, material separation becomes dominated by the characteristic behaviour of brittle materials, i. e. microcrack formation and resultant […]

Rotating dressing tools execute an additional rotational movement (Fig. 6-4). If the dressing tool has the negative profile of the grinding wheel, only a radial feed motion is necessary. Dressing rollers that do not engage across the entire wheel width require however a lateral feed. Common rotating diamond tools for dressing grinding wheels are: • […]

6.3.1 Introduction Machining processes of workpieces with grinding wheels is fundamentally distin­guished according to DIN 8589, or ISO/ DP 3002/ V. Subdivision is carried out with serial numbers (ON), which are currently in seven figures and describe each method according to its systematics. Proceeding from the upper division ’’separa­tion” in manufacturing processes, we have the […]