About Converting from a Sheet Metal Part to a Solid Part
Use the Convert to Solid Part tool to convert a sheet metal part into a solid part. When you convert the part, all sheet metal features are deleted from the part. This operation might be necessary in order to add specific solid features to the part. Alternatively, you can add solid features by suppressing the sheet metal convert feature in the Model Tree, modifying the solid part, and then resuming the suppressed convert feature.
To access the Convert to Solid Part tool, in sheet metal mode, click > > .