that bubble demonstration is gold!
@Simple_But_Expensive
I operated gas turbine power plants for 43 years. I remember when RR announced they were manufacturing single crystal blades. Everyone at the time considered it voodoo.
@kylebailey669
This is why Materials Engineers are so underrated. As an Electrical Engineer, my hats off to you, I could never do this, absolutely insane engineering!
@CBWX
The fact that they literally grow the blade as a SINGLE crystal to prevent it from stretching is actually insanity. We tricked a rock into being one giant diamond just so we can fly.
@realSatvikAgarwal
I work at Rolls-Royce, and I have to commend you because this is such a wonderful explanation of Nickel superalloys and investment castings! I hope we make this part of our company-wide mandatory learning; it would do everyone working here a world of good. Thank you, Derek.
@AngelaPrabhu
Wow! For 40 years I’ve been wondering how single crystal blades were made. We learned about it in aircraft maintenance training but we didn’t have the fancy graphics to explain it so well then. This channel is amazing
@hollisterab
Bring back memories. I spent 10 years with GE, as a Senior Manufacturing Engineer for the F-110 and F-101 exhaust ducts, which are forward of the nozzles. Also in charge of Fan Frames for commercial and military engines, including TF-39, 80-C. Machining the HPT casing was done without coolant, using ceramic inserts, always a show, like the 4th of July, sparks galore, and .080 cut on inconel needs about 25hp to power through. I was also in charge of planning for the fan frame for the F-120, which we lost to Pratt. Back in the late 80's we were doing stuff that still today would sound pretty incredible to most people.
@gregrees9146
Most of the hot section is not just steel a lot of it is inconel which has a much higher melting temperature. Also a lot of the parts in newer engines are ceramic or ceramic coated.
0:00 How a jet engine works
3:18 Why are jet engines so big?
5:17 The Inside of a Jet Engine
8:49 Edge Dislocation
11:11 The First Jet Engine
12:48 Inside the Rolls-Royce Precision Casting Facility
17:07 Nickel Superalloys - Gamma Prime
23:58 Crystal Structure
25:38 Making a Turbine Blade
32:22 Why don’t turbine blades melt?
35:30 Throwing Sand Into a Jet Engine
