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Machining, Fabrication and Inspection of Empennage Final Assembly Jig

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West Cobb Engineering And Tool Inc. is at the forefront of aerospace tool design, and one of our specialties is fabricating large aircraft assembly fixtures, such as the one pictured here. Used for securing the major components and modules for accurate, true, and square assembly of the fuselage of a large transport plane, precision quality construction was critical to achieving the unforgivingly tight tolerance requirement of the aircraft assembly operation.

Using multidisciplinary engineering software gave us a full spectrum of tools for designing an ergonomic and productivity-enhancing solution for this complex assembly structure. Featuring overall dimensions of 28.5' in length, 6.5' in width, and 14.0' in height, we constructed it from steel and aluminum tubing and applied MIG welding techniques to produce deeply penetrating defect-free joints. We utilized a laser tracking system to measure the spatial geometry with pinpoint precision and resolution to verify the dimensional positional accuracy of ± 0.005".

Our engineers and programmers have been involved with many aircraft projects, and our integrated approach to this design and build project enabled us to meet our commitment to the customer in terms of cost, schedule, and technical performance.If you are interested in learning more, Contact us today.





Empennage Final Assembly Jig Project Highlights

Product Name
Aft Fuselage Assembly Jig

Capabilities Applied/Processes
Primary:
CNC 5-Axis Machining
Welding
Laser Tracker
Jig and Fixture

Secondary:
Painting
Stenciling

Equipment Used to Manufacture Part
SNK 250 CNC Machine
MIG Welder
Leica Laser Tracker

Overall Part Dimensions
Length: 28.5 ft
Width: 6.5 ft
Height: 14 ft
Estimated Part Weight: 5000 lb

Tightest Tolerances (+/-)
0.005 in

Material Used
10 x 10 in and 8 x 8 1/4 in Steel Tubing and Aluminum

Material Finish
Epoxy Painted

In Process Testing/Inspection Performed
Dimensional Inspection
Visual Inspection and use of Leica Laser tracker for setting details on jig.

Industry for Use
Aerospace - Large Transport Aircraft

Delivery/Turnaround Time
20 weeks

Standards Met
Customer Specifications
2D CAD Drawing
AS9100 REV C
ISO 9001:2008
CATIA Electronic Model