[TheForge] Making power hammers

Sat Nov 30 14:40:01 2002

Jerry and Larry,

I guess my thought was based on the anvil doing far more work in 
suddenly stopping the ram than the frame was doing in pushing the ram up 
or down. I'll have to think on this some more.

The current plan was to use a piece of 6x6" square tubing (5/16") for 
the back post. This may need to change...

Thanks,
Steve

Jerry Frost wrote:
> Yeah, I'd make the frame plenty rigid. The hammer weight isn't falling, it's
> being accelerated with considerable force and that force has to be supported
> by the frame. The deeper the throat, the heavier the frame needs to be too
> because of increased leverage.
> 
> If you did make it too light I don't think you'd have to worry about a
> catastrophic failure though. I think you'd get some very noticable
> displacement between your dies, making it an unworkable hammer before it's
> back broke.
> 
> It's easier to make it a little heavy in the first place than it is to
> repair/rebuild something like a power hammer.
> 
> Frosty
> ------------------------
> If it ain't forged
> it ain't real.
> Wrought iron is.
> The FrostWorks
> 
> Meadow Lakes, AK.
> 
> 
> ----- Original Message -----
> From: "Steve Smith" <[email protected]>
> To: <[email protected]>
> Sent: Friday, November 29, 2002 4:11 PM
> Subject: Re: [TheForge] Making power hammers
> 
> 
> 
>>I think a lot of hammers are made with way too heavy a frame. Sure, the
>>anvil and base need to weigh as much as you have room for. I don't see
>>why the back column has to be such a heavy piece--the work is done by
>>the falling ram's momentum transfer, not by pushing against the frame.
>>The push the frame absorbs is gentler and more spread out.
>>
>>Any thoughts?
>>
>>Steve
>>
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> 
> 
> 
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