Aerospace Door HingePart Name/Description: Door Hinge

Customer: Aerospace/Commercial OEM

Location: US

Part Name/Description: Door hinge used in Aft section of a Single Isle Commercial aircraft,90- 110 seats

Industry:  Aerospace (Commercial)

Materials: 7050-T7451 Aluminum

Quality Details & Requirements:

  • Line boring of bearing seats, +0/ -.0005” tolerance
  • .010” profile tolerance on all

Quantity:  55 Total ship sets under LTA, 1 part per ship set

Part Size & Dimensions:

  • Height = 3”
  • Width = 6”
  • Length = 10”

Application(s) Used:

Cycle Time(s):

  • 1st Part in Run = 2 hours
  • Last Part in Run = 1 hour 15 minutes

Engineering & Software Requirements:

  • NX CAD File
  • PDF Drawings
  • TopSolid/TopCAM

Project Milestones:

  • Developted a process for deep hole drilling and boring to maintain alignment of bushing seats.   Max tolerance for  concentricity was +/- .0002”.  This was obtained by using three stage machining process that allow consistant repeatability over the entire run of 55 pieces.
  • Applied drilling process to 8 other hinges in a family of parts.

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