Download Operation Manual - Cincinnati Incorporated

CUT PARAMETERS
The Cut Parameters page contains the parameters that define how the cutting sequence is executed following G84 or
G85: Laser power, Frequency, Duty cycle, Feedrate, Pre-cut dwell, Kerf width, Power burst time, Beam Size, Nozzle
Standoff, Assist Gas Port, Assist Gas Pressure 1, and Assist Gas Pressure 2 (Optional, M67). This page also contains
check boxes to select “Dynamic Power Control” and “Dynamic Assist Gas”.
Laser power: The peak laser power in each pulse during the cutting process. Note that the actual, average power produced
by the laser is equal to the product of the Laser power, Frequency, and Duty cycle parameters.
Frequency and Duty cycle: These parameters determine the pulse characteristics of the pulsed laser power (when “Dynamic
Power Control” (DPC) is not selected). When DPC is selected, the DPC parameters also control the frequency and duty
cycle. Refer to the discussion of Dynamic Power Control parameters for more details. To use CW (continuous wave)
mode for cutting, set the duty cycle to 100%.
Feedrate: This parameter should be the maximum cutting speed at which good edge quality can be achieved in normal
operation. For some part features, the actual cutting speed might be reduced to maintain dimensional accuracy of the
part or to improve the edge quality of a feature. Execution of the G89 command can set a variable (default is variable
#148) equal to the value of the cut feedrate parameter. This ability to make the feedrate parameter available to a program
is configurable. See PROCESS LIBRARY FEEDRATE in the GENERAL CONFIGURATION topic for more on
enabling the use of the cut feedrate parameter. Note that the G89 command only sets the value of a variable; the X-axis
and Y-axis cutting speed does not change until the program commands the feedrate with (for example) “F#148”.
Pre-cut dwell time: Specifies a dwell at the beginning of the cut process before motion of the cutting head begins. At the
end of the pierce process, all parameters are switched to cut parameters with the laser beam on. Motion does not begin
until the pre-cut dwell time has elapsed.
Kerf width: The width of the kerf produced by the cutting process. The control uses this parameter for cutter compensation
if the program commands G41 or G42.
Beam size: This setting affects the diameter of the laser beam produced during the cutting process. Decreasing the beam
size setting will result in a smaller beam diameter while increasing the setting will produce a larger beam diameter.
Dynamic Power Control: Enables the Dynamic Power Control (DPC) function. When this box is checked on the Cut
Parameters page, the Process Parameter window includes Dynamic Power Control parameters on a separate page labeled
“DPC”.
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EM-544 (R-07/10)