You can use the imprint tool to create a dimple effect as in sheet metal.
- Start with a solid object with one or more profiles on one facet. Activate Imprint and select the facet that will be imprinted.

- Select the Dimple sheet metal option.

- Select a closed profile.

The height must be a negative value greater than the sheet thickness. The top radius must be equal to or greater than the thickness of the sheet.
