OK - I've not had any Solidworks training, other than on-line tutorials.  I've just having a complete monday morning brain fade on this.  It's really pretty simple - I just can't figure it out.  I want to form a flange that will be welded to the outside of this part.  Using a flange tool is no good, since then I beleive the part would have to be pressed.  I just want a thin strip of sheet metal to follow the simi-circle and two tangent lines to the RH "base" of this sheet.