[TheForge] Power hammer questions

[theforge@mailman.qth.net]

>Thanks Bob:


You're welcome.



>I have to make a correction though. It shouldn't be called frostyanything,


I changed it to selfcontained.  I 
used frosthammer for theforge use. 
It's not like you were going to start 
getting royalty checks.  ;-)


>
>That said, the sketch is a good enough schematic to see how it works. 


Well "good enough" is good enough.


I'd
>suggest anybody wanting to follow this make their own sketches on graph
>paper. (I like graph paper . . . A LOT)



You're probably just saying that cuz 
you have some.



>
>As drawn with a simple on/off valve (K) the hammer will do two things.
>
>Work, eg. cycle the ram with good control of the force.
>
>And Not Work. A simple on/off vlave will NOT lift the ram at idle NOR clamp.


Having the ram down at idle is no problem 
for me. It should raise with a little tickle. 
The clamp I have no use for. I already have 
a vice.

Another question is this. When the ram comes 
down on a piece of say 1" material where 
does the extra air from the pump go? Does it 
compress in the cylinder?




>This is ONLY a description of the control valves, not the entire hammer. The
>Massey hammer does indeed have balance valves though they're piston port
>rather than interupted drive rods.
>
>Frosty


How do these work? Where would they go in my 
drawing? Would they dump the extra air I 
mentioned above?

Bob

clear blue sky and cool air here