Dwell
Cycle: Direct Grooving, Z Level, Zig Zag, Wtype, O Ring Type, Centering, Drilling, Drilling Reaming, Tapping, Die Threading, Parting, Pecking, Chamfering, Knurling
Definition
Ability to program dwell during the toolpath, according to several parameters:
Dwell Depth
Dwell Unit
Dwell
Final Dwell
Settings
Choose first the unit of the dwell: it can be expressed either in seconds or in revolution.
Then you can define the Dwell Depth, which is the distance between two dwells.
Dwell is the value in seconds or revolution, the code is often G04 with a letter (X or U for Fanuc, F for Num for example).
Final Dwell enables to define a different value at the end, to make a better finish at last pass.
The dwell defined are displayed on the screen with the hourglass symbol as shown on the picture below.
In this example:
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Special case for Direct, Z Level and Wtype Grooving operations.
The dwell defined in strategy is not applied on all the toolpath for those three operations. In a way, we can consider that the roughing passes are decomposed in two paths:
‘roughing' passes: vertical plunges are done by the tool and there the dwell can be applied.
‘pre-finishing' pass: the tool realizes one path on the profile after each roughing plunge. This pass is triggered by the parameter ‘Profile Machining’.