Fanuc Series 15i/150i-MA (Programming) Operators Manual

B-63324EN/03 PROGRAMMING 5.FEED FUNCTIONS
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5.5.2 Automatic Corner Override
When cutter compensation is performed, the movement of the tool is
automatically decelerated at an inner corner and internal circular area.
This reduces the load on the cutter and produces a smoothly machined
surface.
5.5.2.1 Automatic Override for Inner Corners (G62)
Explanation
- Override condition
When G62 is specified, and the tool path with cutter compensation
applied forms an inner corner, the feedrate is automatically overridden
at both ends of the corner.
There are four types of inner corners (Fig.5.5.2 (a)).
2° θ θ p 178° in Fig. 5.4.2.1 (a)
θp is a value set with parameter No. 6611. When θ is approximately
equal to θp, the inner corner is determined with an error of 0.001°,or
less.
Fig.5.5.2 (a) Inner corner
1. @Straight line-straight line
:Cutter center path
:Tool
:Programmed path
2. @Straight line-arc
3. @Arc-straight line
4. @Arc-arc
θ
θ
θ
θ

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