metal components to manufacture a small gas turbine/apu

1. APU COMPONENTS
Presented by John Silk-Consultant

2. Components of Interest
• Rotor Assembly-1stStage Turbine
• Stator Assembly 2nd Stage Turbine
• Fuel Injection Nozzle
• Actuator Vanes
• Compressor Rotor

3. Airfoils (blades and vanes)

4. Gas Turbine Blade

5. Rotor Assembly 1st stageVane
Costs
• Material: IN792
• Made from Casting and finish machined
• Casting pattern tooling is estimated to be at
least $60,000.00 per vane
• Raw material cost estimated to be $18
pound (casting)
• With finish machining, inspection etc $26
per pound

6. Stator Assembly 2nd stage vane
Costs
• Material: IN792
• Made from Casting and finish machined
• Casting pattern tooling is estimated to be at
least $60,000.00 per vane
• Raw material cost estimated to be $18 per
pound (casting)
• With finish machining, inspection etc $26
per pound

7. Casting Suppliers
• PCC Airfoils-Beachwood Ohio Wycliffe,
UK
– http://www.pccairfoils.com/
• Howmet Division of Alcoa
– http://www.alcoa.com/howmet/en/home.asp
• Cannon Muskegon (manufacture the
single crystal alloys for blades, sell to the
2 companies above)
– http://www.bestalloy.com

8. Machining Suppliers for Blades
• Turbine Engine Components Corp
http://www.tectcorp.com
• Goodrich Aerospace Corp. –
http://www.tmp.goodrich.com/
• Jarvis Airfoil-http://www.jarvisairfoil.com/

9. Compressor Rings

10. Compressor Rotor
• Made from 6AL-4V Titanium
• Manufactured from a forged seamless ring
and then finish machined
• Estimated forging tooling cost range from
$75,000-$100,000 per ring
• Forging Price approximately $20 per pound,
with finish machining $28 per pound

11. Forging Suppliers
• Firth Rixson (Forged Metals Division)-
http://www.firthrixson.com/
• Carmel Forge-http://www.carmel-forge.com
• Mc Williams Forge-
http://www.mcwilliamsforge.com

12. Compressor Ring Machining
Suppliers
• CAPO Industries-
http://www.capoindustriesinc.com/
• Precision Rings-
http://www.precisionrings.com
• Most of the forging companies have in
house capabilities to provide a finish
machined ring

13. Fuel Injection Nozzles
(note no cost data available without a detailed
assembly drawing)

14. Fuel Injection Nozzle
Manufacturers
• Parker Hannifin Corporation-Parker
Aerospace Group-
http://www.parker.com/ag/
• Delavan Gas Turbine Division of Goodrich
Aerospace-http://www.tft.goodrich.com/