In the Delete Face dialog box, choose what you want to select:
Select Faces. Deletes one or more faces, depending on selection of individual face or lump.
Select Lump or Void. Deletes all faces of the lump or void.
(Optional) When deleting individual faces, select Heal to have Autodesk Inventor attempt to heal gaps by extending adjacent faces until they intersect.
Use a crossing window selection or select individual faces, lumps, or voids that you want to delete in the graphics window.
Click OK.
Show Me How to Use Delete Face With Heal Selected
Replace Part Faces
Replace one or more part faces with a solid body face, surface, quilt, or single or multiple work planes.
The part extends or is trimmed to intersect the new face. The new face is trimmed to match the part.
Click 3D Model tabSurface panel Replace Face .
In the Replace Face dialog box, click Existing Faces and then select one or more part faces to replace in the graphics window.
Tip: To automatically select all adjacent tangent contiguous faces, select Automatic Face Chain.
Click New Faces and then select a solid face, surface, quilt, or one or more work planes.