Diamond grinding wheel
Saint-Gobain Diamantwerkzeuge

Grinding of power plant components has always been making great demands on grinding technology, because of the stock removal characteristics of materials like Inconel, Nimonic und WASP alloy. These are known as highly long-chipping and therefore tend to clog the grinding wheel’s topography.
In general, two grinding technologies – and with it two kinds of abrasives are used:
CD-Grinding (Continuous Dressing)
Typical for this method is continuous dressing: chips getting caught in the bond are removed before next contact with the component.
The CD method is known as extremely high-wear on grinding wheels as well as on dressing tools. In grinding wheels, less costly cutting materials are used (aluminium oxide (Al2O3) or silicium carbide (SiC).
Grinding with intermittent dressing
In this method, dressing of a constant dressing amount is required according to a given number of ground components. More and more often, grinding wheels with superabrasive materials cBN and diamonds are used.
In both techniques, the wheels are dressed with diamond roller dressers.