Re: Using nitric acid to remove broken taps or drills from aluminum
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If alum takes 24 hours and nitric acid takes 10 minutes, you don't have to guess which one I'm using! A few minutes after my broken-off drill bit, I was back in my shop tapping the hole.
Walmart has made it tremendously easier to get nitric acid. Anyway, getting it is only a problem if you have a broken off drill bit or tap RIGHT NOW. Otherwise, order it ahead and save it until you need it. (You probably haven't already?got alum, either).
I store my acids under the kitchen?sink, because I always use them with plenty of water available. They're in a plastic tub, except for gallon bottles of muriatic acid. Here's a photo ?. I keep a recycling bin in front of this so no one ever sees it.
The white stuff in the tub is baking soda BTW, which may help neutralize a leak (or at least give me a clue which one is leaking, if one ever does).
Mike Taglieri?
On Sat, Mar 16, 2024, 5:42 PM mike allen < animal@...> wrote:
Yea I saw this last nite & thought wow we got something here
& if ya have 24 or maybe more hours to remove a broken tap
this could be the ticket . I know my patience & attention span
is much shorter . Gotta say the guy gave it his all though .
animal
On 3/16/24 2:14 PM, chrisser via
wrote:
This
recently posted on Youtube
Using
Alum to dissolve taps in non-ferrous metals.
Kinda
long and seems to require a lot of equipment and a fair amount
of time.? But might be an option less hazardous than nitric acid
and easier to get the materials.
On Saturday, March 16th, 2024 at
3:50 PM, davesmith1800 <davesmith1@...> wrote:
What month in?
Popular Mechanics Magazine circa 1965 for an EDM "Tap Buster"?
Dave?
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