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This is a badge bit (BB) that is part of the PEP curriculum.  Completing this BB is part of getting the sand badge in Metal Working.

After a while, tools that you whack with a hammer can get mushroomed.  Did you know that innocent looking mushroom could be dangerous?  Let's fix it!

Here's a pretty cool guy fixing a number of tools with a number of methods:


To complete this BB, the minimum requirements is to fix a mushroomed striking surface on tools like:
  - chisel
  - splitting wedge
  - hammer
  - punch

To document your completion of the BB, provide the following:
 - A picture of the mushroomed head
 - The tool you're fixing it with
 - The fixed tool
COMMENTS:
 
Posts: 32
Location: Hemingford Nebraska
19
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This post is a quick how to on sharpening and fixing mushroomed chisels to obtain 1/2 point for "Dress up a mushroomed chisel or splitting wedge - ½ point"

I selected a chisel and the appropriate safety gear. I'll be using a pedestal grinder for this process.



The chisel, safety glasses, and earmuffs to complete this project.

First I fixed the butt end. A mushroomed chisel can wreak havoc on gloves not to mention bare skin.



Then I flattened the tip of the chisel. It had many grooves from chiseling into bolts.



I alternated between grinding the cutting angle and dressing the sides as evidenced in the next two photos.





Complete chisel. This appears to be an old air hammer chisel someone's been using by hand, but at least now it's a bit more prepared for work.



Finished chisel ready for use. The full post can be seen on our blog. Permarecycling
Staff note (Mike Haasl) :

I certify this BB complete!

Staff note (Mike Haasl) :

Erik applied for the Metalworking badge which has now been granted!

 
Erik Pehoviack
Posts: 32
Location: Hemingford Nebraska
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That works great, wasn't quite sure where to post. Thanks a bunch!
 
master steward
Posts: 8467
Location: Northern WI (zone 4)
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My pleasure!  Nothing like having a BB done to get me going on typing up the BB.  Some day we'll have pages made for all the BBs so folks can get going on the Straw level items as well...
 
pollinator
Posts: 323
Location: Zone 8b Portland
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I cleaned up my splitting wedge today. I didn’t realize this was a potentially dangerous situation until I read this post. It wasn’t too badly mushroomed but I documented the cleanup anyways :-)
47975CCE-288E-41D7-A219-17CF60F35D4A.jpeg
My splitting wedge
My splitting wedge
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Angle grinder to clean it up
Angle grinder to clean it up
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Staff note (Mike Haasl) :

I certify this BB complete! Along with your new Metalworking Air badge

 
Posts: 19
Location: Joint Base MDL, New Jersey
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I noticed my chisel scraper head was starting to mushroom.  

To fix this issue, I first locked the chisel in a vice, then used a pneumatic angle grinder to quickly remove the deformities.

To finish up i used a file to remove the agressive tool marks left by the grinder.
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Staff note (Mike Barkley) :

I certify this BB is complete. You earned what we call an air badge for metalworking too. Welcome to permies!

 
master pollinator
Posts: 411
Location: Durham, NC
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I deflated the mushroom on my splitting wedge.  I vinegared it, steel-wooled it, then used the bench grinder to sharpen it and deflate the mushroom.  Then I oiled it with linseed oil.

Here is the mushroom head.  



I cleaned it up some:



Used a bench grinder on it:



Here is the de-mushroomed head:



It wasn't specified in this BB but I also sharpened the wedge.  Here is the before:



and after:



Staff note (Mike Haasl) :

I certify this BB complete!

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