# Process designing of G02 of circular arc interpolation, G03CNC Milling

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Headline: ? Not 〔 Piao Geng 02, G03 &mdash. CNC Milling process designing appoints circular arc feed with G02, G03, among them G02 is a clockwise, g03 is anticlockwise direction. Block format is: In the circular arc on X-Y plane: G17X____ Y____ F____ is in the circular arc on Z-X plane: G18X____ Z____ F____ is in the circular arc on Y-Z plane: G19Y____Z____F____G17, G18, G19 chooses to dictate for plane of circular arc interpolation, will be in by treatment surface certainly with this planar, g17 is OK G02 of circular arc interpolation, G03 -- CNC Milling process designing appoints circular arc feed with G02, G03, among them G02 is a clockwise, g03 is anticlockwise direction. Block format is: In the circular arc on X-Y plane: G17X____ Y____ F____ is in the circular arc on Z-X plane: G18X____ Z____ F____ is in the circular arc on Y-Z plane: G19Y____Z____F____G17, G18, G19 chooses to dictate for plane of circular arc interpolation, will be in by treatment surface certainly with this planar, g17 can omit, x_Y_Z_ is value of coordinate of circular arc terminus, absolutely coordinate can be used below G90, also can use increment coordinate below G91. Below increment means, coordinate of circular arc terminus is the increment size of start of arc of opposite Yu Yuan. I, J, K expresses the coordinate of circular arc the centre of a circle, it is the centre of a circle is in relative to start the increment size on direction of axis of X, Y, Z, understandable also arrive for circular arc start the vector of the centre of a circle (vector direction points to the centre of a circle) what go up in axis of X, Y, Z is umbriferous, with in front the G90 of the definition or G91 have nothing to do. R is circular arc radius, when circular arc only then when the angle that the dot moves to terminal place is less than 180 ° , radius R is used be worth express, when from circular arc only then when the angle that nods terminal place shift exceeds 180 ° , radius R expresses with negative worth, as it happens when 180 ° , losing all but. Still should notice, r can be not used when the process designing that make a circle, can use I, J only. F set the feed rate with edge tangential circular arc. Attention: I, J, K can omit for zero hour. Graph B place is shown be equal to for radius of 50 spherical, its ball heart is located in coordinate origin O. The program of circular arc interpolation of A of → of C of → of B of → of A of contrail of cutting tool center, B, C is A → B respectively: G17 G90 G03 X0.

Y50.

I-50.

J0.

; C of → of B of absolutely coordinate process designing: G19 G91 G03 Y-50.

Z50.

J-50.

K0.

; A of → of C of increment coordinate process designing: G18 G90 G03 X50.

Z0.

R50; Absolutely coordinate process designing CNC Milling