
Cylindrical Grinding Fixed Cycles
Chapter 17
17-38
Normal single-step grinders are:
Any non-angled wheel grinder (all linear axes are perpendicular)
Angled-wheel grinders executing in the normal
angled-wheel mode (G16.3).
Figure 17.11 shows the axis motions that make up the G89 multi-step
plunge with blend grinding cycle when executing in one of these grinders.
This figure assumes that the ZX plane (G18) is active.
Figure 17.11
G89 Multi-Step Plunge with Blend in normal angled-wheel mode
12058-I
Part
@F
@E
@,F
@,E
R
I
Q
Rapid Moves
K
BlendAmount
Start Point
Execution of the G89 m ulti-step plunge with blend cycle performs the
following moves:
1. The X and Z axes travel from the start point to the R plane directly
above where the plunge is programmed to take place. This move
takes place at the rapid feedrate.
2. The X axis plunges to the I level at the feedrate F.
3. The X axis plunges to the Q level at the feedrate E.
17.11.1
G89 for Normal Single-Step
Grinders
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