Learn how to use the Stitch tool to combine two or more surface bodies into a single surface or solid body in Fusion.
On the toolbar, click Surface > Modify > Stitch .
The Stitch dialog displays.
Select the faces to stitch into a single body.
Click OK.
The faces are stitched together and the single surface body displays in the canvas. If the surfaces can be stitched to form a watertight body, Fusion creates a solid body.