5238-E P-260SECTION 11 PROGRAMMING FOR SIMULTANEOUS 4-AXIS CUTS (2S Model)• It is advisable to use two or three digits for P numbers, rather than just one, to make it easier tocorrect programs.3. Precautions on Programming Simultaneous 4-axis CutsThe key to efficient simultaneous 4-axis cuts on a 2S model is performing the intended cutting in awell-balanced manner.When programming simultaneous 4-axis cuts, observe the following points carefully:Determine the extent of operations to be performed by turrets A and B.The cutting times required for these two turrets should be well matched when determining thesections to be cut by each.Determine optimum cutting conditions.• Since a spindle change cannot be performed during a simultaneous 4-axis cut, the cuttingspeed will vary according to the diameter being cut. Select the tip material carefully to suit theworkpiece material to be cut.• Select feedrate and depth of cut by taking the cutting at the two turrets into account:Example:LE33013R0301300060001* If the P number in block N0002 is made, for example, P200, i.e., if the P number does notmatch, the control first executes the commands in N0001 for turret A and those in N0101 forturret B. After that, commands for turret B assigned a P number smaller than P200 areexecuted, then the commands for turret A are executed from the block containing P200, i.e.,N0001. Therefore, P numbers must be assigned sequentially (P10 → P20 → P30) inaccordance with the order of command execution.Examples: P10 instead of P1P20 instead of P2Depth of cut : 4 mmFeedrate : 0.3 mm/revTurret ATurret BDepth of cut : 4 mmFeedrate : 0.3 mm/revCuttingtimeDepth of cut : 4 mmFeedrate : 0.35 mm/revTurret ATurret BDepth of cut : 3 mmFeedrate : 0.35 mm/revCuttingtime Reduction of cutting time
