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Manufacturing Engineering
Machining Processes
GATE 2010
Easy

In a CNC program block, N002 G02 G91 X40 Z40 ..., G02 and G91 refer to

  • Acircular interpolation in counterclockwise direction and incremental dimension
  • Bcircular interpolation in counterclockwise direction and absolute dimension
  • circular interpolation in clockwise direction and incremental dimension
  • Dcircular interpolation in clockwise direction and absolute dimension

Explanation

G02 commands circular interpolation in the CLOCKWISE direction (G03 is counterclockwise). G91 selects incremental (as opposed to G90's absolute) coordinate programming.

Source: GATE ME 2010 (2010)

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