help with homemade power hammer,,,

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Grouser1741

Joined
Apr 17, 2018
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I'm making a power hammer out of an old riding lawn mower. I have 2 Sledge hammers face to face hitting each other. What I need help with is, do you think that the faces of the Sledge hammers should be flat? Regular Sledge hammers that you get at the hardware store have a rounded face. What are your thoughts on this? Thanks
 
I have some great pictures, do you have to have a third party host them or can you post them directly here?
 
story.php
 
You need to host them if you aren't a paid member.

This sounds either very creative or a disaster. I for one am wanting to see photos and drawings.

How are you controlling the gap?
 
They need to be rounded to move metal.
Flat is only useful to smooth warps, bent, etc. on otherwise nearly finished forgings. Strangely enough those tools are called ’flatters’.
 
Grouser1741 said:
I have some great pictures, do you have to have a third party host them or can you post them directly here?
Click to expand...
Whoops.... thought I had replied hours ago, but the reply didn't submit.

Most or all of the forum memberships will allow you to attach pics, IIRC, but generally, you'll want to use a third party like flickr or imgur.
 
Funny topic considering over the past year I had wondered how somthing like this would work. My idea was different but same basic principle, minus the lawn mower and sledgehammers.

My thought was to have two rams across from each other, one on the left and one on the right. Thy would ride on a flat surface and meet in the middle. You would then feed your stock in from the front. Trick would be keeping it centered so as not to get knocked around. This could affectly remove the need for large stationary anvils. But the timing would be the critical part and would most likely need to be linked mechanically.
 
Look at the physics. If the work ( blade) was EXACTLY centered, and the blows were EXACTLY identical, there would be displacement by the combined force. BUT, if the blade was any amount out of alignment or placement a lot of the energy would be transferred to your wrists … not the blade.
 
Oh I know. Talk about the possibility to get the **** kicked out of you if your off center. I think there could be ways to help alleviate the centering problem but still tricky. There could be a V shaped bottom guide so to speak that would center it for the most part. Would be tricky to pull off but could possibility be done. You loose all other benefits of a standard power hammer like forging blades to shape.
 
Exactly. You need to have one surface immobile. The blade needs to rest on that surface.
 
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