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Formula for calculating cutting process

The circumferential speed ratio is a very important numerical value in setting the use conditions of the rotary dresser.
In general, the low circumferential speed ratio indicates better surface roughness; in contrast, when the ratio approaches 1 (high), the sharpness is emphasized.

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How to Determine Peripheral Speed Ratio

Peripheral speed ratio ＝
VrVs
Vr [m/min]Rotary dresser peripheral speed
＝
N [min-1]Rotary dresser rotational speed
×
D [mm]Rotary dresser diameter
×
π [3.14]Pi
÷
1000
Vs [m/min]Grinding wheel peripheral speed
＝
N [min-1]Grinding wheel rotational speed
×
D [mm]Grinding wheel diameter
×
π [3.14]Pi
÷
1000

Determine peripheral speed ratio

Rotary dresser rotational speed（min-1）
Grinding wheel rotational speed（min-1）
Rotary dresser diameter（mm）
Grinding wheel diameter（mm）
Rotary dresser peripheral speed Vr（m/min）
Grinding wheel peripheral speed Vs（m/min）
Peripheral speed ratio *

* In case of up dress, please add "-", minus, to the number after the calculation.

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