
Feed rate compensation: For 42° cutting, divide the hm value by the sine of the approach angle (the sine of 42° = 0,669)
i.e.: hm or 0,08mm
0,669 0,669 = 0,12mm programmemed feed rate
Calculation of the average chip thickness in relation with the ae (Radial Engagement) if ae is less than 50% of Dia.
| Formula: Programme Feed Rate (f ) | h | = Average chip thickness | Formula: Average Chip Thickness (hm) | |
| z | m | |||
| a = Radial engagement | ||||
| e |
d f = Feed per tooth a
| f = h | x | z | h | = f x | e | |||
| z | m | m | z | |||||
| a | d | = Cutter diameter | d |
e