The body intersection multibody technique in SolidWorks utilizes the Common option within the Combine feature.
This method offers a swift approach to crafting intricate parts with minimal operations, thereby enhancing performance. It involves taking multiple solid bodies that overlap and retaining only the intersecting volumes.
For models that can be adequately represented by two or three drawing views, this technique proves efficient by intersecting two or three extruded solids, with their extrusion sketches represented by solid lines in the views.
For instance, consider the following example demonstrating the intersection of two extrusions:
To create the described part, begin with the base part.
Then, utilize the Common option within the Combine feature to incorporate only the overlapping material of the base part.