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Science Forum Index » Engineering - Joining (Welding) Forum » Welding electrical copper bars...
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| Ignoramus31680... |
 Posted: Thu May 08, 2008 1:33 pm |
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Guest
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Continuing to think of what material to use for vise jaws. I have some
electrical copper bars, looks like 3/16 thick, that would work for
soft vise jaws.
To keep them on the vise, I could weld some copper to the back to look
like "ears" to hold the jaws.
So, obviously, the strength requirements are minimal. Just keep the
jaws from falling off when the vise is opened.
The question is, can this electrical copper be welded at all.
DC TIG
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| BobH... |
| Posted: Thu May 08, 2008 7:03 pm |
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Ignoramus31680 wrote:
Quote: Continuing to think of what material to use for vise jaws. I have some
electrical copper bars, looks like 3/16 thick, that would work for
soft vise jaws.
To keep them on the vise, I could weld some copper to the back to look
like "ears" to hold the jaws.
So, obviously, the strength requirements are minimal. Just keep the
jaws from falling off when the vise is opened.
The question is, can this electrical copper be welded at all.
DC TIG
Mr. Minnick says it can. Mechanical clean, degrease, preheat with
oxyacetylene and pump a mess of current in. Everything but leaded brass
is rated at fair to good weldability. He recommends argon/helium mix for
the heat.
From "Gas Tungsten Arc Welding Handbook" by William H Minnick, My
favorite TIG refence book which is where I start with questions like this.
Good Luck,
Bob |
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| johnnytorch... |
| Posted: Thu May 08, 2008 7:16 pm |
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"BobH" <WanderingMetalHead.DUMP.SPAM at (no spam) yahoo.com> wrote in message
news:230a9$482394c6$8c631746$29152 at (no spam) news.deru.net...
Quote: Ignoramus31680 wrote:
Continuing to think of what material to use for vise jaws. I have some
electrical copper bars, looks like 3/16 thick, that would work for
soft vise jaws. To keep them on the vise, I could weld some copper to the
back to look
like "ears" to hold the jaws. So, obviously, the strength requirements
are minimal. Just keep the
jaws from falling off when the vise is opened. The question is, can this
electrical copper be welded at all. DC TIG
Mr. Minnick says it can. Mechanical clean, degrease, preheat with
oxyacetylene and pump a mess of current in. Everything but leaded brass is
rated at fair to good weldability. He recommends argon/helium mix for the
heat.
From "Gas Tungsten Arc Welding Handbook" by William H Minnick, My favorite
TIG refence book which is where I start with questions like this.
Good Luck,
Bob
Mr. Leimkuhler is my first go-to reference:
http://groups.google.com/groups/search?hl=en&q=copper+TIG+leimkuhler |
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| Bruce in Bangkok... |
| Posted: Thu May 08, 2008 7:42 pm |
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On Thu, 8 May 2008 19:16:08 -0500, "johnnytorch"
<jlweatherlyxxx at (no spam) xxxgmail.com> wrote:
Quote:
"BobH" <WanderingMetalHead.DUMP.SPAM at (no spam) yahoo.com> wrote in message
news:230a9$482394c6$8c631746$29152 at (no spam) news.deru.net...
Ignoramus31680 wrote:
Continuing to think of what material to use for vise jaws. I have some
electrical copper bars, looks like 3/16 thick, that would work for
soft vise jaws. To keep them on the vise, I could weld some copper to the
back to look
like "ears" to hold the jaws. So, obviously, the strength requirements
are minimal. Just keep the
jaws from falling off when the vise is opened. The question is, can this
electrical copper be welded at all. DC TIG
Mr. Minnick says it can. Mechanical clean, degrease, preheat with
oxyacetylene and pump a mess of current in. Everything but leaded brass is
rated at fair to good weldability. He recommends argon/helium mix for the
heat.
From "Gas Tungsten Arc Welding Handbook" by William H Minnick, My favorite
TIG refence book which is where I start with questions like this.
Good Luck,
Bob
Mr. Leimkuhler is my first go-to reference:
http://groups.google.com/groups/search?hl=en&q=copper+TIG+leimkuhler
It would certainly be easier to simply soft or hard solder the
attaching ears onto the copper.... wouldn't it?
Bruce-in-Bangkok
(correct Address is bpaige125atgmaildotcom) |
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| BobH... |
| Posted: Thu May 08, 2008 10:25 pm |
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johnnytorch wrote:
Quote: "BobH" <WanderingMetalHead.DUMP.SPAM at (no spam) yahoo.com> wrote in message
news:230a9$482394c6$8c631746$29152 at (no spam) news.deru.net...
Ignoramus31680 wrote:
Continuing to think of what material to use for vise jaws. I have some
electrical copper bars, looks like 3/16 thick, that would work for
soft vise jaws. To keep them on the vise, I could weld some copper to the
back to look
like "ears" to hold the jaws. So, obviously, the strength requirements
are minimal. Just keep the
jaws from falling off when the vise is opened. The question is, can this
electrical copper be welded at all. DC TIG
Mr. Minnick says it can. Mechanical clean, degrease, preheat with
oxyacetylene and pump a mess of current in. Everything but leaded brass is
rated at fair to good weldability. He recommends argon/helium mix for the
heat.
From "Gas Tungsten Arc Welding Handbook" by William H Minnick, My favorite
TIG refence book which is where I start with questions like this.
Good Luck,
Bob
Mr. Leimkuhler is my first go-to reference:
http://groups.google.com/groups/search?hl=en&q=copper+TIG+leimkuhler
No disagreement from me about Ernie being an excellent reference.
Maybe because I am getting to be an aging dog, the net is not my first
stop.
Especially for what should be readily available info that has not
changed in
the last decade or three. |
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| toolman946 via CraftKB.com... |
| Posted: Fri May 09, 2008 10:26 pm |
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Quote: Ignoramus31680 wrote:
So, obviously, the strength requirements are minimal. Just keep the
jaws from falling off when the vise is opened.
Iggy,
A cool alternative could be to bore a couple of flat bottomed holes into the
back of each jaw liner and epoxy a thin neodymium magnet into each hole.
O'course... tig welding copper is waaaaaaaay cool!
Cheers,
Michael
--
Message posted via CraftKB.com
http://www.craftkb.com/Uwe/Forums.aspx/welding/200805/1 |
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