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CNC Machining & Assembly of Titanium and Stainless Steel Engine Mounts

When Lockheed Martin procurement and manufacturing fell out of sync they turned to Lx3 Corporation to meet critical deadline. With BF-1 roll out to Marine Corps just weeks away, Lx3 was given task to expedite manufacture of required components. These components included Aft Thrust Mount Clamp assemblies, Aft Side Link Assembly and Fwd Side Link Assembly. These assemblies were required install engine into the very first STOVL (Short Takeoff Vertical Landing) F-35 to be manufactured.

Materials used were 6Al-4V Titanium and 13-8 MO PH Stainless steels with all inspections and coatings applied to flight critical specifications. Lx3 performed all machining and assembly operations in house and coordinated outsourcing of all additional required processes.

Completing all assemblies on schedule and fulfilling all specified LMA, AMS, and AS standards as indicated in our customer supplied drawings, LX3 exceeded our client's high expectations for service and quality. We even received the "Outstanding Manufacturing Support for JSF Program" award for a job well-done!






CNC Machining & Assembly of Engine Mounts Project Highlights

Product Description
Engine Mount Assemblies for BF-1 F-35 STOVL (Short Takeoff Vertical Landing) Application

Capabilities Applied/Processes
CNC milling
CNC Turning
Thread Rolling Per AS8879
Beta Annealing
  • 4Al-6V Titanium Beta Annealed Per AMS-H-81200A & LMA-M5004B. 3
  • Included Micro, Tensile and Fracture Testing of Material

Heat Treatment
  • 13-8 MO Stainless Steel Heat Treated to H1000 Per AMS 5629D
  • Included Tensile Testing of Material
Coating
  • 6Al-4V Ti - Penetrant Inspect, Conversion Coating and Solid Film Lube
  • 13-8 MO CRES - Solid Film Lube and Coatings as Indicated

Assembly
  • Nitronic 60 bushings installed in CRES Links and Swing Bolts Per LMA-PB033
  • Bushing ID's Machined to Required Tolerance.
  • CRES Pins Installed in Clamp Assemblies Per LMA-PB033 Shrink Fit Method
  • Pins Swaged Per LMA-PB023.
  • Spherical Bearings Installed and Swaged in FWD Side Link Assy.
100% Inspection

Tightest Tolerances
+/- 0.0002"

Material Used
13-8 MO PH Stainless Steel
6Al-4V Titanium

Components
Aft Side Link Assembly
Aft Thrust Mount Clamp Assemblies
Forward Side Link Assembly

In Process Testing Performed
CMM probing
Dimensional Inspection
Precision Measuring Instruments

Turnaround Time
4 week expedited service

Industry for Use
Military

Delivery Location
Lockheed Martin Aeronautics - Fort Worth, Texas

Standards Met
2D Auto CAD Drawing
All Specified LMA, AMS and AS Standards as Indicated in Customer Supplied Drawings
Customer supplied print

Product Name
F-35 Engine Mounts



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