Recommended Posts

I just had one of those aha moments or maybe a complete lack of logic. Would it be possible to some how mount a jackhammer and stabilize it and use it as a power hammer? Tell me what you think has anyone tried it?

Share this post


Link to post
Share on other sites

Yes over a decade ago there were two differing builds posted on the net.  Basic take on it was that it was a bad idea a jack hammer has very short "throw" and needs to be mounted with some give to the holder as it's not designed for a rigid mount.  Much cheaper and better to build one of the known good power hammer plans out there already.

Share this post


Link to post
Share on other sites

Ah yes the man in the iron mask!  I've seen some very nice work doing using hand held impact tools, especially with repousse ; but they do not do the job of a powerhammer---note that the short throw is compensated by the forger's hand following the work as it deforms and compare it to how a powerhammer deals with differing thickness in a single forging session.   One of the examples I recall had the jackhammer spring mounted "to mimic the 90 pounds of workman's belly hanging over the handle" was how he put it,  IIRC

Share this post


Link to post
Share on other sites

Austin I use the jack hammer that attaches to my skid steer loader as a power hammer.  I can dish a 5/16"x 2'x2' plate in less than 7 min.  I have also made some different dies for it.   

Share this post


Link to post
Share on other sites

WAY COOL!!! matto got any pics we love pics :) friend has both skid steer & hammer HMM ? lol

you doing that cold ??? i am thinking fire pit dishes ? 

Share this post


Link to post
Share on other sites

I will see what I can get off my old computer.  This sculpture is 1/4" plate.  Shaped then welded together.  I will see what ever else I can find.

 

image.jpeg.32e7fd7b9aaa05207d901c4bf5f6a

image.jpeg.e181ce8a349251aa94956971b9b88

This is 1/4" plate

image.jpeg.d7741c0f38cdbc7d82d53d25a426e

this is 3/8" plate

image.jpeg.c30d48c6d7262aa4aa87bb9559898

Share this post


Link to post
Share on other sites

Anvil's Ring maybe 22 years ago or so had three articles by "Hammer and Hand" studio where they talk about using air chippers and jack hammers and such for piercing and drifting and forging. They liked the hex tools as they did not rotate.

You should be ablate locate the back issue with a search over at ABANA.org...........if you find them let me know.

 

Ric

Share this post


Link to post
Share on other sites

Sure just don't expect them to do the work of a Nazel, Little Giant, etc. but as the videos show they certainly can be used on hot steel. I have a few bits for an air chisel that work nicely for heading rivets, punching, cutting, etc. I picked up a pneumatic needle scaler at . . . a . . . Yard sale! a couple summers ago and it textures hot steel with a vengence. You just have to like a bunch of sharp little crater shapes. However by applying the scaler to a HOT block then breaking the sharper features with a hammer and sander it makes a nice texturing die for a pebbly finish.

Frosty The Lucky.

Share this post


Link to post
Share on other sites

Frosty, the scalers also work great for peening welds during cast iron repairs. Once the needles get used they tend to get more rounded, you could also take them out and round them up on a grinder/sander some.

Share this post


Link to post
Share on other sites

Yes, needlers/scalers work good for peening. Also used one for work hardening a brass base.

Share this post


Link to post
Share on other sites

Super cool what that guy is doing with that air hammer, I was wondering I'm not a blacksmith by any means but in the giant steel mills they have huge roller presses they roll it back an forth on then roll it back into the forge, repeat, etc.. Would  it be possible to scale that process down and incorporate the air hammer function into the rollers so it would a hammer as it was roll formed down? Stupid or is there a functional reason why you shouldn't perform it in that way?

Share this post


Link to post
Share on other sites

Inefficient and difficult to apply pressure for rolling and then syncopate it.  What is it that you want to accomplish that is not being done in the rolling?

Share this post


Link to post
Share on other sites

Jack hammers don't make the right kind of impact though there are a couple guys who do hollow forming in steel plate with jackhammers.

It'd be more practical Incorporating a roll forge and impact forge processes laying down a thick steel plate on a really solid floor and running over it with a vibratory roller. The kind used to compact road grades, yes?

It'd be a neat video but . . . :wacko:

Frosty The Lucky.

Share this post


Link to post
Share on other sites
On 4/23/2019 at 7:50 PM, brokendash said:

Super cool what that guy is doing with that air hammer

Here's another video of him, where he actually uses a jack hammer!

 

Share this post


Link to post
Share on other sites

I thought I'd seen this before, turns out to be the same general sculpture with a different air hammer. 

Does he do other things besides faces?

Frosty The Lucky.

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.