Manufacturing And Production Technology
The effect of setting a boring tool above center height leads to

Increase in both effective rake angle and effective clearance angle
Increase in the effective rake angle and a decrease in the effective clearance angle
Decrease in the effective rake angle and an increase in the effective clearance angle
Decrease in both effective rake angle and effective clearance angle

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Manufacturing And Production Technology
In a CNC program block, N002 GO2 G91 X40 Z40......, GO2 and G91 refer to

Circular interpolation in counter clockwise direction and incremental dimension
Circular interpolation in clockwise direction and absolute dimension
Circular interpolation in counter clockwise direction and absolute dimension
Circular interpolation in clockwise direction and incremental dimension

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