A raft of new and enhanced functionality features in VISI 2021 – the latest release of Hexagon’s specialist mould and die CAD/CAM software.
CAD analysis benefits from a new function which improves the suite of analysis shading modes. Draft Analysis has been added to the existing Undercut and Accessibility shading, performing an on-the-fly analysis of the draft angle. This uses the same technique as in the undercut mode, but extended to more ranges. The colours and angular value of each range can be changed by simply clicking on the colours or numeric labels on the graphics toolbar.
Repair functions used in the Repair Invalid Faces of Bodies command are now integrated in the Validate command. It is now also possible to zoom in on any potential issues using the Auto Zoom function.
Developments to the CAD Reverse module enhance the Reverse and Casting processes. VISI Product Owner Marco Cattaneo explains that the scanning operation has been improved with the shaded view, giving better and faster feedback.
With Point Scanning, the shaded point cloud is now shown during the scanning operation, giving the operator an immediate view of what has been correctly scanned, and if anything is missing.
An additional option has been added to automatically create a mesh as a scanning result, which he says is particularly valuable when a quicker, rather than detailed, result is needed.
Enhancements to probing during the Reverse process now detect the correct diameter of the part in relation to the position of the probed points. A Circle/Slot probing feature has been added for probing and designing a circle or slot, giving several options to guarantee the probed element is the correct size and in the correct position.
MOULD – Body to Mould
Additional options to existing commands, along with new items of functionality, make part position management considerably easier.
With Body to Mould, there is a new option to select multiple elements, including solids and surfaces, and move the selected bodies to the mould position. During the part positioning, ‘non-uniform scaling values’ can now be defined by the user, and the system automatically sets the relative shrinkage data in a special Assembly Manager field (Bill of Materials).
With Mould to Body, the system allows multiple element to be selected, including solids and surfaces, and to move the complete mould back into Body position. “This will be valuable for operators using CMM to check tools in the body position. When they select the part to move back, they get an option to select multiple elements to go with the tool back to Body position,” says Marco Cattaneo.
PROGRESS – Part Unfolding
To provide a powerful and complete solution to this new unfolding approach, additional features have been included for flanges and non-linear bends. The Part Definition feature has been improved, giving better and faster part analysis, identifying the different face types, defining material, and setting linear bends unfolding. Different colours can be set, relating to different neutral fibre values, giving quick identification for unfolded linear bends and fibre value.
A new feature manages flange unfolding on the analysed part, and shows the result in preview mode, so the operator can evaluate the result and set different parameters, while preserving the link with the original part. This automatically recalculates the flanged part, meaning all linked parts can then be rebuilt in reference to a modification on the original.
An interface with Hexagon’s G-code simulator, NCSIMUL Advanced comes as a cost option in VISI 2021. Marco Cattaneo explains that NCSIMUL manages the complete machining process from the NC program to the machined part.
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