Patent Number: 6,170,157

Title: Determinant spar assembly

Abstract: A method and apparatus for manufacturing wing spars includes a fixture that holds spar webs for drilling and edge trimming by accurate numerically controlled machine tools using original numerical part definition records, utilizing spatial relationships between key features of detail parts or subassemblies as represented by coordination features machined into the parts and subassemblies, thereby making the parts and subassemblies intrinsically determinant of the dimensions and contour of the wing.

Inventors: Munk; Clayton L. (Maple Valley, WA), Nelson; Paul E. (University Place, WA), Strand; David E. (Newcastle, WA)

Assignee: The Boeing Company

International Classification: B23P 21/00 (20060101); B64F 5/00 (20060101); B64C 3/00 (20060101); B64C 3/26 (20060101); B64C 3/18 (20060101); G05B 19/00 (20060101); G05B 19/408 (20060101); G05B 19/44 (20060101); B21D 053/88 ()

Expiration Date: 01/09/2018