[TheForge] Power hammer Vs air hammer (OT)

[Ralph Sproul]

	Scott Forge in Wisconsin uses hydraulic presses......I'd tend to call them
hammers as they hit three times per second!   I toured one of their
facilities with Bob Bergman and Keane Paradiso last fall - awesome tour.

Ralph

-----Original Message-----
From: theforge-bounces at mailman.qth.net
[mailto:theforge-bounces at mailman.qth.net]On Behalf Of Peter Fels And
Phoebe Palmer
Sent: Friday, May 19, 2006 8:33 PM
To: Sponsored by ABANA
Subject: Re: [TheForge] Power hammer Vs air hammer (OT)


Just to confuse the issue, there are larger scale commercial
hydraulic forging hammers...for example , Anyang lists one...Pete F

Demon Buddha wrote:
> That's a pretty good nit, I must confess.  I suppose we could pick nits
> even more by making some arbitrary constraint about relative volumes of
> fluid to solid, and then pick nits about the arbitry value.  Then, of
> course, we could work our way down the nit ladder until we were arguing
> about quarks and spin and charm and strangeness... finally getting down
> to strings and super strings and how doing that tends to make one's mind
> seize up.
>
> But seriously, that is a good point.  However, the motion of the fluid
> in a solid-link hammer (SL) is usally not constrained the way it is in a
> fluid link hammer (FL).  That is, in SL hammers the fluid is allowed to
> escape in whatever volumes it may choose.  That it doesn't go completely
> dry immediately is due to surface phemomena rather than containment.
> Whereas, in an FL hammer, the efficiency of operation is very strictly
> dependent upon the degree of containment.  With much leakiness, the
> power of an FL cannot be transmitted from source to destination without
> much loss.  I may be wrong, but I think this constitutes a fundamental
> difference between the two in terms of the roles of fluids in each type
> with respect to power transmission from source to work.
>
> Bruce Freeman wrote:
>
>> Aw, c'mon.  We can pick nits better than THAT!  You see, even a Little
>> Giant has a fluid connection between parts - namely the oil layer in the
>> bearings...
>>
>>
>>>>> rniemi at fidalgo.net 5/18/2006 6:57:33 PM >>>
>>
>>
>> I didnt know you had nits at fancy business schools- they have a
>> shampoo for that, I think....
>> MBA-Qwell, I think its called.
>>
>> Yust Yoking, as my Finnish relatives would say.
>>
>> But it seems to me, that, while not PERFECTLY grammatically correct, it
>>
>> makes sense to call a hammer that has a continuos mechanical linkage
>> between the motor and the top die, a "mechanical" hammer, while calling
>>
>> one where the top die and ram is floating, and pushed by air, an "air"
>>
>> hammer.
>>
>> Or would you prefer a "fluidised connection mechanical" as opposed to a
>>
>> "continuous connection mechanical" ?
>>
>> ries
>>
>>
>> _______________________________________________
>> Manage membership or unsubscribe at:
>> http://mailman.qth.net/mailman/listinfo/theforge
>> theforge mail list group photo site is
>> http://www.photoaccess.com
>> Login:  blacksmithblacksmith at hotmail.com
>> password:  anvil
>> ___________
>>
>>
>>
> _______________________________________________
> Manage membership or unsubscribe at:
> http://mailman.qth.net/mailman/listinfo/theforge
> theforge mail list group photo site is
> http://www.photoaccess.com
> Login:  blacksmithblacksmith at hotmail.com
> password:  anvil
> ___________
>
>
>
>
_______________________________________________
Manage membership or unsubscribe at:
http://mailman.qth.net/mailman/listinfo/theforge
theforge mail list group photo site is
http://www.photoaccess.com
Login:  blacksmithblacksmith at hotmail.com
password:  anvil
___________