The Boeing Perspective on The Boeing Perspective on Titanium Developmentp

Rod BoyerB i C i l Ai lBoeing Commercial Airplanes

Titanium 2007ITA ConferenceOrlando, FloridaOrlando, Florida

October 7-9, 2007

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Titanium StrategiesTitanium StrategiesReduced CostReduced Cost

Nearer Net ForgingsExtrusions (including nearer net)*Extrusions (including nearer net)Rolled Shapes*Welding*

Hot Stretch

Forming

gSPF, SPF/DBSingle MeltgCoil*Enhanced Machinability*

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Improved PerformanceImproved Performance

Higher Strength Alloys*Higher Strength AlloysImproved Oxidation Resistance*Hi h St th F t /R d E dHigh Strength Fasteners/Rod EndsFine Grain SheetHydraulic Tubing*High Strength CastingsHigh Strength CastingsMore Robust Alloys/Processes

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Reduced CostE Extrusions

737 Seat Tracks

Greater extrusion utilization

737 Seat Tracks

Near-Net ExtrusionGoal: 2 surfaces net

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Reduced Costll d hRolled Shapes

Lower Buy:Fly than extrusions for simple shapes

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Reduced Cost ld Linear Friction Welding

Boeing ConceptBoeing Concept

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Reduced CostC il Coil

WHY?Long lengths (floor structure)Reduced costReduced costBetter tolerance control?

Requirements Properties equivalent to or close to Ti64to or close to Ti64Good formabilityWeldability ATI 425 could be attractive

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y

Improved PerformanceHi h S h AllHigher Strength Alloys

Forgings – 220ksi UTSg gTi-5Al-5Mo-5V-3Cr vs 4340M (180 vs 280 ksi) 8% weight advantageg gTi at 220ksi 15% weight advantageReduced maintenance cost

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Improved PerformanceIImproved Oxidation Resistance

Temperatures for plug and nozzle and Temperatures for plug and nozzle and heat shields continue rising. Oxidation resistance becoming more Oxidation resistance becoming more of a concern

I d llImproved alloyTough durable coating

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Improved Performanceh d li bihydraulic tubing

Want to enable reducing wall gthickness, thus weightCollaborative effort with Airbus to Collaborative effort with Airbus to develop Ti-6Al-4V tubing allowables

Concern with single source situationConcern with single source situationFormability/workability of ATI 425 could provide a more reproducible could provide a more reproducible alternative

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Improved PerformanceHi h S h FHigh Strength Fasteners

Fasteners >180ksi UTSFasteners >180ksi UTSTi-5Al-5Mo-5V-3Cr vs. EN6114/5 steel40% weight advantage40% weight advantageAvoid hazardous coatings

Prototypes successfully manufactured Prototypes successfully manufactured by AFS

Aero-Lite 7/16” Flush head shear pin

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Conclusions Conclusions Premised on success of Boeing 787 and Premised on success of Boeing 787 and other airplane programs, there should be a high demand for titanium for the next few years.Primary emphasis will be on technologies which will result in reduced costImproved performance will still be of i i h h i i h interest with emphasis in the areas discussed

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