How To Make Spiral Interpolation G02.1 G03.1 Program

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Numerical control (NC) refers to the automation of machine tools that are operated by abstractly programmed commands encoded on a storage medium, as opposed to controlled manually via handwheels or levers, or mechanically automated via cams alone. The first NC machines were built in the 1940s and 1950s, based on existing tools that were modified with motors that moved the controls to follow points fed into the system on punched tape.

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How to make Spiral interpolation G02.1 G03.1 Program

2:56 AM Sivakumar

Spiral interpolation G02.1 G03.1 Command G02.1 and G03.1 provide such an interpolation that the starting and ending points are connected smoothly for an arc command where the radial of the both points difference from each other 1. Circular movement directions of G2.1 and G3.1 correspond with those G02 and G03 respectively. 2. Radius designation is not available for spiral interpolation. The start and end points must lie on the same arc for a radius designation 3. Conical cutting or tapered threading can be done by changing the radial of the arc at its starting and ending points and designating a linear–interpolation axis at the same time. Notes:- When a radius is designated, this command will be regarded as a radius designated circular interpolation Programming Format:-Plane G17 G17 G2.1 or G3.1 X__ Y__ I__ J__ F__ P__Plane G18 G18 G2.1 or G3.1 Z__ X__ K__ I__ F__ P__Plane G19 G19 G2.1 or G3.1 Y__ Z__ J__ K__ F__ P__Detail:-X Y or ZX or YZ = Arc end point Coordinates I J or K L or J K = Arc center coordinates P : Number of pitches ( P can be Omitted If Equal to 0.) F : Rate of feed along the tool path

Spiral Interpolation

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Take care not to use radius designation (R) for spiral interpolation; otherwise a normal circular interpolation will be executed. It is not possible for a spiral interpolation the starting and ending points of which should have different center specified. Example:- Programming for spiral contouring with incremental data Plane G17 Arc end point coordinates X= 0.0 , Y = -15.0 Arc center coordinates X= 0.0 , Y = 45.0 and pitch 2.00Program :- G00 X0.0 Y-45.0 ( Approach the start point ) G01 Z-0.5 ( in feed on the Z –axis )G2.1 X0.0 Y-15.0 I0. J45.0 F300 P2. ( Spiral interpolation ) G00 Z3.0 ( Return on the Z axis ) Click Here Radius designated circular interpolation commands G02, G03:-

Posted in: Fanuc, G02.1, G03.1, Milling, Turning