HUST CNC H6D-T - Page 155

3 G/M Codes
3 - 93
6. Chamfer outside (acute angle) G40 and move command in the same block:
Fig 3-75
3.27.3 Interference Check
Functions and Purposes:
When pre-reading-in 2 program blocks to perform a tool-tip radius compensation, it
often results in cutting into the workpiece; this is called an interference.
When cutting a stepwise work-piece with a step value smaller than the tool radius, an
over-cutting alarm is generated as shown in Figure 3-51.
Fig. 3-76 Over-cutting (Shaded Area)
An interference check is a check against such conditions, for taking responding actions
according to the parameter.
Interference handling comprises the following 3 functions that can be selected by
parameter setting.
Arc cente
r
E E
E
E
Type A Type B
Line Line Line Line
Arc Line
Arc Line
T
ool-tip radius center path
Program path
T
ool-tip radius center path
Program path
T
ool-tip radius center path
Program path
Arc cente
r
T
ool-tip radius center path
Program path