Thread: Turbine Blades

SWEET!

Make a hollow razor! Big chopper of a razor, but still light and nimble.....

Originally Posted by Seraphim

SWEET!

Make a hollow razor! Big chopper of a razor, but still light and nimble.....

I dare ya!

Don't forget titanium.

I'm sure that several generations of metals have occurred in the research of turbine blades since twenty years ago. Steels, by default, are much to heavy and low tech for good engines any more.

I read into the superalloys used a little bit last night and found that the newer stuff is indeed more nickle based than steel based. Some of it also has a lot of cobalt in it. And there seems to be a trend toward ceramics, but they are really expensive. Looks like ge and rolls royce are working on some kind of electric engines now. Whatever I eventually get my hands on, it should be somewhat corrosion resistant if it is the newer stuff, or mostly steel if it is rather old (at least 20-30 years?). I think I found some inlet blades on ebay. Some from God only knows what kind of engine, and some british military engines. There seems to be a pretty wide variety. They have some of the hollow collector blades on there as well. I just searched jet engine blade and jet turbine blade and got quite a few hits. Some of those blades were awfully small. They had some larger ones, though. All of them had some kind of curves. I think the metal would still be usable as long as there aren't any stress fractures. Or they could all be junk that has been through hell and back. Here's a link I found that has some info on the content of the alloys over the years, up to the mid 90s, I think. Rhenium seems to be well liked as well. A lot of the blades look like they have some kind of tracking info on them, so it might be easy to date it to a specific decade and then get a ballpark idea of what's in it.

Jet Engine: Turbine Blades and Temperature Text - Physics Forums Library

Enough of the swear words "GE and Rolls Royce" Thems fightin words Oh just kiddin, I told you who I work for. Maybe not much longer, I don't know if you all have read the news but they (our socialist govt) are going to cancel the F22 Raptor program. That just might leave me with the other six milloin unemployed. I guess I better get back to restoring razors.

Well, I hope they don't make too many cuts where you work. But, if they do, 5 minutes in the supply room might actually be worth your while... Maybe oil prices will stay low and keep the russians poor enough to keep them from building too many planes that could even think about taking on a raptor if the program is getting scrapped.

Originally Posted by tazz

Enough of the swear words "GE and Rolls Royce" Thems fightin words Oh just kiddin, I told you who I work for. Maybe not much longer, I don't know if you all have read the news but they (our socialist govt) are going to cancel the F22 Raptor program. That just might leave me with the other six milloin unemployed. I guess I better get back to restoring razors.

Would that hurt P&W that bad? Obviously it's not preferable, but I thought they were in a fairly good position. At least you've got the F35 coming, as well as the A380 engines.

I wouldn't think that using turbine blades would lend itself well to knives or razors. That being said, it would be pretty cool to be proven wrong.

Well with the way the economy is these days we aren't getting as many new orders for engines. The GP7000 (A380 engine) is still a limited production as there is only a few customers for them. The F35 is not slated to go into full production till 2011. Another big contract for us is the tanker contract that is still in limbo. Right now we are going through manditory one week furloughs, they are making us take them one day at a time so we can't collect. I figure if they cancel the F22 now I'll have about a one year vacation from there. The Airforce actually wants another 65 or so F22's wich relates to another 130 engines plus spares but they may not get them. That would most likley cancel that year long vacation.

I got one of the sets of blades in the mail a couple of days ago. They are awfully light for their size, which makes me wonder how much steel is in them. They are long enough to use as a razor, probably somewhere around 5 inches or so. They have quite a curve built into them, though, and are wider at the bottom than they are at the tip. To try and put an edge on one of them as is is going to be difficult. I could probably get a nice bevel started on the side that curves back onto itself, using one side of the blade as a guide for the other, but the other side poses the question of how to maintain a consistent angle as the blade curves away from it. I figure that one bevel will be much wider than the other, too, in order to get the desired angle. I will try and post some pictures of it after the weekend and maybe I will come up with an idea of how to put an edge on it. I might have to trim it down to a more manageable shape.