1. LQ03 Titanium Pole Length Study Fred Nobrega LQ Collaboration Video Meeting June 27, 2008 BNL - FNAL - LBNL - SLAC

2. LQ03 Ti Pole Length Study, Fred Nobrega 2 LQ Video-Mtg June 27, 08 LQ03 Ti-6Al-4V Pole Length Change After Reaction

3. LQ03 Ti Pole Length Study, Fred Nobrega 3 LQ Video-Mtg June 27, 08 Inner coil pole length change average = -17 mils ±.004, (  =.003) Outer coil pole length change average = -2 mils ±.007, (  =.004) Used tube furnace to HT parts from LQ03 and from stock at 650° C for 60 hours »2 x L1 parts from LQ03 and 2 parts from stock »2 x L2 parts from LQ03 and 2 parts from stock »2 x layer jump assemblies from stock LQ03 Ti-6Al-4V Pole Length Change After Reaction

4. LQ03 Ti Pole Length Study, Fred Nobrega 4 LQ Video-Mtg June 27, 08 HT LQ03 L1 pole & part from stock in steel clamp with 1200 lb compressive load LQ03 Ti-6Al-4V Pole Length Change After Reaction L1 pole from stock

5. LQ03 Ti Pole Length Study, Fred Nobrega 5 LQ Video-Mtg June 27, 08 LQ03 Pole Pieces After Reaction 6/12/08 on 6/12/08

6. LQ03 Ti Pole Length Study, Fred Nobrega 6 LQ Video-Mtg June 27, 08 Pole Pieces From Stock After Reaction

7. LQ03 Ti Pole Length Study, Fred Nobrega 7 LQ Video-Mtg June 27, 08 Clamped L1 Pole From LQ03 & Stock *Argon was lost at some point during the 60 hour heat treatment. * 6/12/08 on 6/12/08

8. LQ03 Ti Pole Length Study, Fred Nobrega 8 LQ Video-Mtg June 27, 08 Next Step(s) Bake LQ03 parts at 125 ° C for 24 hours (impregnation cycle) in free state and measure length change if any. Inspect with the CMM the clamped L1 parts that lost argon during HT for dimensional changes. Parts may need to be replaced. Consider repeating clamped part HT ???

9. LQ03 Ti Pole Length Study, Fred Nobrega 9 LQ Video-Mtg June 27, 08 Conclusions Ti-6Al-4V pole length change after reaction is not permanent. Slow length change occurs when compressive load is removed Ti-6Al-4V pole length change in free state with 650° C HT grows to near it’s original length Length change is not dependant on the manufacturing processes used. Layer jump parts were machined and pole parts were EDM’ed with some grinding to bring parts within tolerance. 3 different raw material Heats used for all parts not dependent on part length.

10. LQ03 Ti Pole Length Study, Fred Nobrega 10 LQ Video-Mtg June 27, 08 461134 461136 4117 74 4610 85 4118 22 LQ Ti-6Al-4V Parts