Extended Surface

Surfaces OverviewSurfaces are a type of geometry that can be used to create solid features. Surface tools are available on the Surfaces toolbar. You can create surfaces by these methods:Insert a planar surface from a sketch or from a set of closed edges that lie on a planeExtrude, revolve, sweep, or loft from sketchesOffset from existing faces or surfacesImport a fileCreate mid-surfacesRadiate surfacesYou can modify surfaces in the following ways:ExtendTrim existing surfacesUntrim surfacesFillet surfacesRepair surfaces using Filled SurfaceMove/Copy surfacesDelete and patch a faceKnit surfaces

You can use surfaces in the following ways:Select surface edges and vertices to use as a sweep guide curve and path.Create a solid or cut feature by thickening a surface.Extrude a solid or cut feature with the end condition Up to Surface or Offset from Surface.Create a solid feature by thickening surfaces that have been knit into a closed volume.Replace a face with a surface You can extend a surface by selecting an edge, multiple edges, or a face.To extend a surface:Click Extended Surface on the Surfaces toolbar or click Insert, Surface, Extend.In the PropertyManager:Under Edges/Faces to Extend, select one or more edges or faces in the graphics area for Selected Face/Edges .For edges, the surface extends along the plane of the edge. For faces, the surface extends along all edges of the face except those connected to another face.You can propagate extended surfaces to tangent faces by clicking the Propagate callout which appears only if you select edges. Select an End Condition type:Distance. Extends the surface by the value you specify in Distance .Up to point. Extends the surface to the point or vertex selected in the graphics area for Vertex .Up to surface. Extends the surface to the surface or face selected in the graphics area for Surface/Face .Select an Extension Type:Same surface. Extends the surface along the geometry of the surface.Linear. Extends the surface tangent to the original surface along the edges.Extend edge using Same surface as the Extension Type.Extend edge using Linear as the Extension Type.Extend surface using the face as the Edges/Faces to Extend and Same surface as the Extension Type.Click OK .
(fr.SOLIDWORK Help)