公开(公告)号：US20170225769A1

公开(公告)日：2017-08-10

申请号：US15423888

申请日：2017-02-03

Applicant: Bell Helicopter Textron Inc.

Inventor： David G. Carlson ,  John R. McCullough ,  Douglas K. Wolfe ,  George R. Decker ,  Keith A. Stanney

IPC: B64C3/26 ,  B64C29/00 ,  B64F5/00 ,  B64C3/18

CPC classification number: B29C70/34 ,  B29C35/02 ,  B29C65/48 ,  B29C70/06 ,  B29C70/30 ,  B29C70/545 ,  B29C2793/009 ,  B29D99/001 ,  B29D99/0089 ,  B29L2031/3076 ,  B29L2031/3085 ,  B32B3/12 ,  B32B7/12 ,  B32B2250/05 ,  B32B2305/024 ,  B32B2605/18 ,  B64C1/12 ,  B64C3/185 ,  B64C3/24 ,  B64C3/26 ,  B64C29/0033 ,  B64F5/00 ,  B64F5/10 ,  Y02T50/43

Abstract: A method of manufacturing a tiltrotor wing structure including providing a spar mold having a plurality of bores extending from an exterior surface of the mold to an interior surface of the mold, the plurality of bores corresponding to a plurality of primary coordination holes in a spar member, the spar mold having a periphery defined by a top edge, a bottom edge and outboard ends; selecting a plurality of resin impregnated plies to ensure that the plies continuously extend beyond the periphery of the spar mold; laying the plies in the spar mold; curing the plies in the mold to form a cured spar member that extends beyond the periphery of the spar mold; and accurately drilling a plurality of primary coordination holes in the cured spar member in the spar mold using a tool positioned in the plurality of bores.