You all make very good points. The 7075 material is not expensive, and I can get a variety of thickness'. I'm working this experimentally as I have to do tests that will prove the principle, that is the desired deflection for the span of the bar. Multiple leaves may be required to get the...
Thanks, all very good points
2. Not yet, will do shortly. I am going to start with a much thinner plate 0.030", stress will be lower;
3. Good point I am going to look for a stronger aluminum alloy;
4. I only require 1 cycle;
5. It needs to be aluminum, the higher concentration of aluminum the...
Don't know where you get helical spring from. it's a rectangular cross-section bar. It's also hard to get good comments without getting side-swiped like that.
Yes, I have no problem designing the spring from 1st principles. My main issue is finding the right aluminum alloy. Aluminum 7075 seems to be a good candidate, it has a 61,00 psi yield strength.
This is what I originally thought then I googled "aluminum spring" and there are some manufacturers that make aluminum helical springs. What are they doing that's different?
Also in my case I am not worried about a fatigue limit, the spring only needs to work once.
Cheers,
Jacques
Hello, I am trying to find some aluminum spring material. The shape of the spring needs to be rectangular (1 ½”L x 3/8” W x 1/16” D). I don’t know the spring constant at this point but it has to be higher than what you get from typical material machined out of stock from the hardware store.
The...
