A tool grinding machine is usually not mounted on a table. It works through the insertion of a tool, and requires a high level of skill from the operator. As well as a knowledge of the relationship between the metal workpiece and the grinding wheel, the operator must also understand the basics of tool geometry. The grinding process can take place both automatically or manually, but almost constant supervision of most tool grinders is necessary.
WALTER Tool grinding machine in operation
Large businesses tend to rely on a CNC tool grinding machine. This is because the grinding or cutting process is managed directly by a central computer. As the adjustments needed often involve very tiny and precise movements and measurements, there is significant scope for error. A CNC tool grinder manages the process in its entirety, reducing the chances of human error.
While computerised tool grinding machines are more expensive than older versions, companies have an opportunity to save money by purchasing used tool and cutter grinders. A used tool grinder may need maintenance and servicing, but it has a track record of performance behind it, which is something that can never be said about a new machine.