Tab and Slot
The Tab and Slot feature creates tabs on one body and slots (holes) on another body to interlock the two bodies. You can specify how the tabs and slots look and how they are distributed along the selected entities.
Tabs and slots make it easier to weld parts together and minimize the requirement to build complicated fixtures because you can interlock several sheet metal parts. This feature is available in all parts, not just sheet metal parts. You can use it in single bodies, multibodies, and parts in the context of an assembly.
Edges and faces must correspond to each other - when you select an edge for the tabs, you must select a matching face for the slots. The faces can be planar or cylindrical, but the edges and faces do not have to touch.
Tab and Slot feature | Enlarged image |