| Specific material removal rate Qw' (Q-prime) |
| The specific material removal rate Qw’ indicates how much material in cubic mm one (1) mm width of grinding wheel can remove in one (1) second. As it always refers to one (1) mm width of grinding wheel and the same unit of time, direct performance comparisons can be made between different types of grinding wheels and grinding processes.
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Guideline for Qw’
| 0.5 to 1. 0 mm3/mm/s |
Fine finishing |
| 1.0 to 2.0 mm3/mm/s |
Finishing |
| 3.0 to 5.0 mm3/mm/s |
Target value |
| >10.0 mm3/mm/s |
High performance grinding at ³ 80 m/s (³16,000 spfm) | |
