Grinding or hard turning?
Deciding whether to finish a part with grinding or hard turning is difficult and often counterintuitive. Both can achieve extremely high tolerances and surface finishes.
It would be nice if there were a clear set of standards to determine whether a part should be hard turned or ground. Unfortunately, it’s never that simple and there are many variables to consider before arriving at a final solution.
In this article, we take a closer look at these factors.
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In 1969 Hembrug launched its first machine with a hydrostatic main spindle. IBM requested the turning of memory discs with 0,5 µm high-precision form and 0,025 µm Ra surface finish.
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