[TheForge] Air hammer return stroke

Fri Jan 31 21:25:01 2003

I bolted some 1" rubber so that it would not bottom out the cylinder.But it
never comes close to hitting it.The hammer reverses well before it gets that
far.It also helps to get a cylinder with an air cushion on that end. Mark

---
Mark & Sylvia Mondloch
Silver Creek Pottery & Forge
W6725 Hwy 144
Random Lake ,Wi 53075
[email protected]
http://www.silvercreekpottery.com
----- Original Message -----
From: "Steve Smith" <[email protected]>
To: "theforge" <[email protected]>
Sent: Friday, January 31, 2003 8:08 PM
Subject: [TheForge] Air hammer return stroke

> So I'm still working on a self contained air hammer, although my
> question applies to other hammers as well.
>
> When the ram is on the return, headed upward, it reaches a hard stop so
> that the air cylinder doesn't bung itself up. I'm trying to figure how
> to cushion the hard stop.
>
> A spring seems like a good idea. Unfortunately, there is quite a bit of
> energy to absorb. If I did it right, I could do it with a stack of
> Belleville spring discs. This would run about $50 buying them from MSC.
> I sized them based on stopping the hammer in less than 1" travel (which
> makes for a lot of spring washers). The rod on the cylinder that the
> discs would go around is 1 1/8" diameter. A large coil spring would also
> work, but I don't have a source for one.
>
> Any other suggestions out there?
>
> Thanks,
> Steve Smith
>
> _______________________________________________
> http://mailman.qth.net/mailman/listinfo/theforge
> theforge mail list group photo site is
> http://www.photoaccess.com
> Login:  [email protected]
> password:  anvil
> ___________
>
>