Contents • • • • • • • • • • Fanuc G71 Turning Cycle G71 turning cycle is used for rough-material removal from a cnc lathe component. G71 turning cycle makes large diameter cutting easy. Cutting can be done in simple straight line or a complex contour can also be machined very easily. Through G71 turning cycle parameters cnc machinists can control • Depth of cut.

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• Retract height. • Finishing allowance in x-axis and z-axis. Instructor Manual Management Daft 11th. Black Angus Rotisserie Manual Muscle.

Psychopathic From Outer Space 3 Rar Shirt. • Cycle cutting-feed, spindle speed. Programming G71 U. Parameters First block Parameter Description U Depth of cut.

R Retract height. Second block Parameter Description P Contour start block number. Q Contour end block number. U Finishing allowance in x-axis. W Finishing allowance in z-axis.

F Feedrate during G71 cycle. S Spindle speed during G71 cycle. G71 Turning Cycle Overview • G71 turning cycle cuts the whole contour repeatedly which is given in P Q blocks. • Depth of every cut can be controlled by first-block U value. • Second-block U W are the finishing allowances which can be given if you want to make a finish cut with G70 finishing cycle. • F is cutting feed and S is spindle speed (given in second-block) which are used during G71 turning cycle. Note – The F and S given inside P Q block will not be used during G71 turning cycle, they are used with G70 finishing cycle if later called.

G71 Turning Cycle Working N60 G71 U10 R10 N70 G71 P80 Q90 U3 W0 F0.25 N80 G00 X60 N90 G01 Z-75 When G71 turning cycle is run the whole operation will be done in following sequence, First-cut 1 – Tool will move in x-axis U (depth of cut) deep with programmed feed from starting-point. 2 – Tool will travel with feed in z-axis (destination point in z-axis is given in P Q blocks ) 3 – Tool rapidly retracts R amount in both x-axis and z-axis (at 45 degrees). 4 – Tool rapidly travel in z-axis to start-point Later-cuts 5 – Tool rapidly moves to last cut depth. 6 – Tool moves with feed in x-axis U deep (first-block U depth of cut).

7 – Tool with feed moves in z-axis (destination point given in P Q blocks). 8 – Tool rapidly retracts in x-axis and z-axis R amount (45 degrees). 9 – Tool rapidly moves to start-point only in z-axis. This whole sequence of operation keep on going, until the destination point in x-axis is met. If finishing allowance is given tool will not make the exact diameter and length given in P Q blocks but will leave that much allowance, This finishing allowance can be later machined by calling G70 finishing cycle.