You can use parting surfaces, classified surfaces, or volumes to split workpieces or die blocks into one or more volumes. Before splitting a volume you must create features such as reference part cutout, volumes, and parting surfaces. When you split volumes—

Before you split the workpiece or a volume, you must cut out the reference parts from the workpiece. When the reference parts are cut out, by default, all the workpieces and reference parts are selected. Alternatively, you can clear the Include All check box in the Workpiece and Reference Parts fields to manually select the workpieces or reference parts. After splitting volumes, you can preview the results for one or more volumes.

For mold or cast assemblies with multiple workpieces, you can select one or more workpieces or die blocks to split them concurrently. When you use parting surfaces to split volumes, one or more volumes replace the original volume. When you use other volumes to split volumes the new volumes that are created do not replace the original volume.