ISO programming
G871
G871
Refer to your machine manual.
This function must be enabled and adapted by the machine manufacturer.
This cycle enables you to perform axial recessing of right-angled slots (face recessing).
You can use the cycle either for roughing, finishing or complete machining. Turning is run paraxially with roughing.
The control uses the tool position as cycle starting point when the cycle is called. The cycle machines only the area from the cycle starting point to the end point defined in the cycle.
Help graphic | Parameter |
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Q215 Machining operation (0/1/2/3)? Define extent of machining: 0: Roughing and finishing 1: Only roughing 2: Only finishing to final dimension 3: Only finishing to oversize Input: 0, 1, 2, 3 | |
Q460 Set-up clearance? Reserved; currently no functionality | |
Q493 Diameter at end of contour? X coordinate of the contour end point (diameter value) Input: –99999.999...+99999.999 | |
Q494 Contour end in Z? Z coordinate of the contour end point Input: –99999.999...+99999.999 | |
Q478 Roughing feed rate? Freed rate during roughing. If M136 has been programmed, the value is interpreted by the control in millimeters per revolution; without M136, in millimeters per minute. Input: 0...99999.999 or FAUTO | |
Q483 Oversize for diameter? Diameter oversize on the defined contour. This value has an incremental effect. Input: 0...99.999 | |
Q484 Oversize in Z? Oversize of the defined contour in the axial direction. This value has an incremental effect. Input: 0...99.999 | |
Q505 Finishing feed rate? Feed rate during finishing. If M136 has been programmed, the value is interpreted by the control in millimeters per revolution; without M136, in millimeters per minute. Input: 0...99999.999 or FAUTO | |
Q463 Limit to plunging depth? Maximum recessing depth per step Input: 0...99.999 | |
Q510 Overlap factor for recess width? Factor Q510 influences the lateral infeed of the tool during roughing. Q510 is multiplied by the CUTWIDTH of the tool. This results in the lateral infeed factor "k". Input: 0.001...1 | |
Q511 Feed rate factor in %? Factor Q511 influences the feed rate for full recessing, i.e. when a recess is cut with the entire tool width CUTWIDTH. If you use this feed rate factor, optimum cutting conditions can be created during the remaining roughing process. In this manner, you can define the roughing feed rate Q478 to be so high that it permits optimum cutting conditions for each overlap of the cutting width (Q510). The control thus reduces the feed rate by the factor Q511 only when recessing with full contact. In sum, this can lead to reduced machining times. Input: 0.001...150 | |
Q462 Retraction behavior (0/1)? With Q462, you define the retraction behavior after the recess. 0: The control retracts the tool along the contour 1: The control first moves the tool at an angle away from the contour and then retracts it Input: 0, 1 | |
Q211 Dwell time / 1/min? A dwell time can be specified in revolutions of the tool spindle, which delays the retraction after the recessing on the floor. Retraction is only performed after the tool has remained for Q211 revolutions. Input: 0...999.99 | |
Q562 Multiple plunging (0/1)? 0: No multiple plunging: the first recess is made into the uncut material, and the subsequent ones are laterally offset and overlap by the amount Q510 * Width of the cutter (CUTWIDTH) 1: Multiple plunging; rough grooving is performed with full tool engagement into uncut material. Then the remaining ridges are machined. These are recessed successively. This leads to a centralized chip removal, considerably reducing the risk of chip entrapment Input: 0, 1 |
NC programs contained in this User's Manual are suggestions for solutions. The NC programs or individual NC blocks must be adapted before being used on a machine.
Some NC programs depend on the machine kinematics. Adapt these NC programs to your machine kinematics before the first test run.
In addition, test the NC programs using the simulation before the actual program run.
With a program test you determine whether the NC program can be used with the available software options, the active machine kinematics and the current machine configuration.
11 CYCL DEF 871 SIMPLE RECESS, AXIAL ~ | ||
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12 L X+75 Y+0 Z+2 FMAX M303 | ||
13 CYCL CALL |