B-63324EN/03 PROGRAMMING 5.FEED FUNCTIONS
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5.3 CUTTING FEED
Feedrate of linear interpolation (G01), circular interpolation (G02,
G03), etc. are commanded with numbers after the F code. In cutting
feed, the next block is executed so that the feedrate change from the
previous block is minimized.
Four modes of specification are available:
1. Feed per minute (G94)
After F, specify the amount of feed of the tool per minute.
2. Feed per revolution (G95)
After F, specify the amount of feed of the tool per spindle
3. Inverse time feed (G93)
Specify the inverse time (FRN) after F.
4. F1-digit feed
Specify a desired one-digit number after F. Then, the
feedrate set with the CNC for that number is set.
Feed per minute
G94 ; G code (group 05) for feed per minute
F ; Feedrate command (mm/min or
Feed per revolution
G95 ; G code (group 05) for feed per revolution
F ; Feedrate command (mm/rev or inch/rev)
Inverse time feed
G93 ; Inverse time feed command
G code (05 group)
n : Number from 1 to 9
- Tangential speed constant control
Cutting feed is controlled so that the tangential feedrate is always set at
a specified feedrate.