minimal thickness for pulsejet walls?

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nalexandrov
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minimal thickness for pulsejet walls?

Post by nalexandrov » Tue Dec 11, 2012 8:15 am

What is the most minimal thickness you can make pulsejets out of for lightweight applications?

metiz
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Re: minimal thickness for pulsejet walls?

Post by metiz » Tue Dec 11, 2012 4:22 pm

if you are running stationairy, no less than 0.5mm
on a plane with active cooling you can go down to 0.3mm

All asuming stainless steel!
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daab
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Re: minimal thickness for pulsejet walls?

Post by daab » Wed Dec 12, 2012 6:05 pm

And how they can weld the sheets of 0.3 or 0.5 mm to fit properly sealed? with which equipment? With which technique?

metiz
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Re: minimal thickness for pulsejet walls?

Post by metiz » Wed Dec 12, 2012 6:54 pm

using TIG equipement. can't go into detail about exact technique, youtube it.
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Mark
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Re: minimal thickness for pulsejet walls?

Post by Mark » Thu Dec 13, 2012 12:29 am

I think it would be neat to have a small pulsejet made as thin and light as possible.
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nalexandrov
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Re: minimal thickness for pulsejet walls?

Post by nalexandrov » Fri Dec 14, 2012 8:36 am

Anyone have suggestions on MIG techniques for welding .5mm or 24 gauge steel sheet? I know it can be done just not easily.

metiz
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Re: minimal thickness for pulsejet walls?

Post by metiz » Fri Dec 14, 2012 3:46 pm

I wouldn't advice building it out of normal steel that thin. It will rot away in no time.
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Mark
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Re: minimal thickness for pulsejet walls?

Post by Mark » Sat Dec 15, 2012 1:52 am

I suppose 321 stainless would do pretty good. I wonder if 347 or some kind of inconel would be better or which the best? If I recall correctly Earl Bailey told me inconel is a little heavier and dents easily. I guess each alloy would have good and bad qualities depending on what you wanted to trade for.
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