ISO programming
G882
G882
Refer to your machine manual.
This function must be enabled and adapted by the machine manufacturer.
In Cycle 882 SIMULTANEOUS ROUGHING FOR TURNING, the defined contour area is roughed simultaneously in several steps using a movement that includes at least 3 axes (two linear axes and one rotary axis). This allows machining of complex contours with a single tool. During machining, the cycle continuously adjusts the tool angle of inclination based on the following criteria:
You can execute this cycle with FreeTurn tools. This method allows you to perform the most common turning operations with just one tool. Machining times can be reduced through the flexible tool because fewer tool changes occur.
Requirements:
The NC program remains unchanged except for the calling of the FreeTurn cutting edges, see Example: Turning with a FreeTurn tool
Help graphic | Parameter |
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Q460 Set-up clearance? Retraction before and after a cut. And distance for the pre-positioning. This value has an incremental effect. Input: 0...999.999 | |
Q499 Reverse the contour (0-2)? Define the machining direction of the contour: 0: Contour is executed in the programmed direction 1: Contour is executed in the direction opposite to the programmed direction 2: Contour is executed in the direction opposite to the programmed direction; the position of the tool is also adjusted Input: 0, 1, 2 | |
Q558 Extensn. angle at contour start? Angle in the WPL-CS, by which the cycle extends the contour up to the workpiece blank at the programmed starting point. This angle is used to prevent damage to the workpiece blank. Input: -180...+180 | |
Q559 Extension angle at contour end? Angle in WPL CS by which the cycle extends the contour at the programmed end point up to the workpiece blank. This angle is used to prevent damage to the workpiece blank. Input: -180...+180 | |
Q478 Roughing feed rate? Feed rate during roughing in millimeters per minute Input: 0...99999.999 or FAUTO | |
Q488 Feed rate for plunging Feed rate in millimeters per minute for plunging. This input value is optional. If you do not program the feed rate for plunging, the roughing feed rate Q478 will apply. Input: 0...99999.999 or FAUTO | |
Q556 Minimum angle of inclination? Smallest possible permitted angle of inclination between the tool and workpiece relative to the Z axis. Input: -180...+180 | |
Q557 Maximum angle of inclination? Largest possible angle of inclination between the tool and workpiece relative to the Z axis. Input: -180...+180 | |
Q567 Finishing allowance of contour? Contour-parallel oversize that will remain after roughing. This value has an incremental effect. Input: -9...99.999 | |
Q519 Infeed on contour? Axial, radial and contour-parallel infeed (per cut). Enter a value greater than 0. This value has an incremental effect. Input: 0,001...99.999 | |
Q463 Maximum cutting depth? Limit of the maximum infeed relative to the cutting edge. Depending on the tool angle of inclination, the control may temporarily exceed the Q519 INFEED, e.g., when machining a corner. Use this optional parameter to limit the extent by which the infeed may be exceeded. If you define the value 0, the maximum infeed is two thirds of the length of the cutting edge. Input: 0...99.999 | |
Q590 Machining mode (0/1/2/3/4/5)? Defining the direction of machining: 0: Automatic; the control automatically combines transverse and longitudinal machining. 1: Longitudinal turning (outside) 2: Face turning (front face) 3: Longitudinal turning (inside) 4: Face turning (chuck) 5: Contour-parallel Input: 0, 1, 2, 3, 4, 5 | |
Q591 Machining sequence (0/1)? Define the machining sequence after which the control executes the contour: 0: Machining occurs in segments. The sequence is selected in such a way that the center of gravity of the workpiece is shifted towards the chuck as soon as possible. 1: The workpiece is machined paraxially. The sequence is selected in such a way that the moment of inertia of the workpiece decreases as soon as possible. Input: 0, 1 | |
Q389 Machining strategy (0/1)? Definite the cutting direction: 0: Unidirectional; every cut is made in the direction of the contour. The direction of the contour depends on Q499 1: Bidirectional; cuts are made against the direction of the contour. The cycle determines the best direction for each following step. 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 882 SIMULTANEOUS ROUGHING FOR TURNING ~ | ||
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12 L X+58 Y+0 FMAX M303 | ||
13 L Z+50 FMAX | ||
14 CYCL CALL |