Vero has a great deal of CAM technology within the Group, and with VISI being one of the premier products, it was vital we evaluated our expanded toolbox to ensure VISI benefits from the increased technology portfolio. An updated GUI, improved point distribution and toolpath accuracy (by 'smooth movements') means the dynamics of the machine tool itself makes full use of the software improvements to ultimately produce shorter cutting times and a better surface finish.
The layout of the user interface for 3D milling operations now has a format similar to the 2D toolpaths. For example, the retract plane settings and oversize settings for 3D operations are in the same position in the dialogue box as for the 2D operations and vice versa. New component management enables greater editing functionality by allowing individual faces to be set as machined or protecting faces, offering complete control of machining areas.
A number of new roughing and rest-roughing strategies combined with enhanced retract methods will generate even more efficient NC programs. Smooth toolpath movements and transitions, along with consistent feed movements allow a faster toolpath to be output closer to the maximum feedrate available on the machine tool. VISI automatically recognizes any areas where residual material is remaining and edits the toolpath accordingly, which keeps the cycle times low.
VISI 21 includes new toolpath trimming options. These include tool holder trimming, obstacle trimming, and trimming to stock. There are various options to retain only the trimmed toolpath, or keep both variations where the trimmed toolpath is managed as a child subset of the parent toolpath. This is ideal for subsequent machining operations where it is necessary to machine the trimmed areas. For example, after clamping obstacles have been moved or a need to machine deep cavities using 5-axis tilting strategies.
New finishing strategies
All finishing strategies for VISI 21 have been improved. An optimal distribution of points and new high speed cutting options on the toolpath allow better use of the machine tools dynamics, reducing the need to continuously accelerate and decelerate, and therefore maintain a consistent cutting speed. These innovations will ensure impressive milling results with a high quality surface finish.
Machining Trials @ Makino
Machine = Makino D500, Material = 1.2343 Steel Part Size = 200x150x50mm
Machining Operations :
Roughing = D25 R2 Speed 1660, Feed 5312, Stepdown 0.8, Stepover 20
Rest roughing = D10 R1 Speed 5800, Feed 3480, Stepdown 0.3, Stepover 6
Finish 1 = D6 R1.5 Speed 9550, Feed 1910, Stepover/Stepdown 0.15
Finish 2 = D6 R3 (coolant ON) Speed 10600, Feed 2544, Stepover/Stepdown 0.12
Finish 3 = D4 R2 (coolant ON) Speed 14400, Feed 2304, Stepover/Stepdown 0.08