Working with Non–Autodesk Inventor Data - Inventor 2013 and Inventor LT 2013 Essentials - page 312

10. Switch your Ribbon to the View tab, and use the Section View drop-
down menu to click the Half Section View tool.
11. Click the top of the model, and drag the sectioning plane halfway into
the part to see that the two internal components have been removed.
Your model should match Figure 14.18.
FIGURE 14.17 The Shrinkwrap model can be created as a
single or multibody part.
FIGURE 14.18 Simplification can close
gaps and remove components from the assembly.