
Cylindrical Grinding Fixed Cycles
Chapter 17
17-20
The format for the G84 cycle is as follows:
G18;
G84X__I__Z__Q__L__F__E__P__D__;
Table 17.D summarizes the G84 cycle parameters. For a detailed
description of these parameters, see the text below and page 17-9.
Table 17.D
G84 Cycle Parameters
Parameter: Definition: Default Value: PossibleValue:
Planeaxis1
1
plunge depth valuemustbeprogrammed abs.orinc.
Planeaxis2
3
lastplunge point none (plunge atstartonly) abs.or inc.
Planeaxis2 integrand
3
ditheramount zero inc.only
Q
3
plunge shift zero inc.only
L
3
numberof spark-outpassesor revolutions zero zeroto999
F
2
plunge feedrate lastfeedrateprogrammed valid F word
E
3
ditherfeedrate plunge feedrate validF word
P
3 forG84 2 forG84.1
dressprogramnumber from last cycle programmed valid programnumber
D
3
numberof auto-dressexecutions zero zero to 999
1
mustbe programmed
2
musthave been programmed i n some previousblock if omitted
3
optional
Figure 17.5 shows t he axis motions that make up the G84 multi-pass face
grinding cycle. This figure assumes that the ZX plane (G18) is active.
17.6
G84 or G84.1 Multi -pass
Face Grinding (Axis 1)
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