Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work.

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PhysicsGenius
 
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http://www.use-enco.com/CGI/INSRIT?PMAKA=140-0005

I was complaining on another site about my crucible problem and how I
didn't have a welder. Someone said "so just buy one". I had no idea
that welders could be so cheap.

I'm not planning to buy one, but I am interested in more information.
Could the welder as linked above do the welding that I need done? (If
you don't remember, I have a 4" pipe nipple to attach to an endcap....or
I did; now I'm planning to go another route.) Would it survive a trip
through a ~1500 F furnace? How much experience/training is required to
use something like this?
  #2   Report Post  
GTO69RA4
 
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That's expensive as far as cheap welders go. You could get one off eBay for
probably $45 brand new. However, stuff in this range is basically for light
hobby work. Sticking together a handrail, fixing a rusty mower deck, etc. You
_could_ do what you want to, but it would take a while and probably wouldn't
been too good a weld. These little welders are also a PITA to use.

I'd see if could find a used 220V AC stick welder for sale locally. Do you
have a classifieds magazine in your area?

GTO(John)

http://www.use-enco.com/CGI/INSRIT?PMAKA=140-0005

I was complaining on another site about my crucible problem and how I
didn't have a welder. Someone said "so just buy one". I had no idea
that welders could be so cheap.

I'm not planning to buy one, but I am interested in more information.
Could the welder as linked above do the welding that I need done? (If
you don't remember, I have a 4" pipe nipple to attach to an endcap....or
I did; now I'm planning to go another route.) Would it survive a trip
through a ~1500 F furnace? How much experience/training is required to
use something like this?

  #3   Report Post  
Aaron Kushner
 
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PhysicsGenius wrote:
http://www.use-enco.com/CGI/INSRIT?PMAKA=140-0005

I was complaining on another site about my crucible problem and
how I didn't have a welder. Someone said "so just buy one". I
had no idea that welders could be so cheap.


Have you considered renting one? Depending on where you live, you
shouldn't have trouble finding something like a Lincoln 135A MIG
unit (using fluxcore) for abou $35/day.

I have my own oxy-acetylene welder, but there have been times
where I've run out of gas on a weekend, so I'll rent a MIG unit
from Home Depot to finish up a project.

  #4   Report Post  
Dave Keith
 
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Default portable welder

It looks OK. These smaller welders have low duty cycles, which means that
you can weld for a bit, then you have to wait a while for the thing to cool
down, then you can weld some more. They will have quite low duty cycles at
their highest amperage (that one might be a 10% duty at 70A, or weld for a
minute and let it cool down for 9 minutes). For the most part a welder like
this is simply a transformer. My big Marquette is a very large transformer


"PhysicsGenius" wrote in message
...
http://www.use-enco.com/CGI/INSRIT?PMAKA=140-0005

I was complaining on another site about my crucible problem and how I
didn't have a welder. Someone said "so just buy one". I had no idea
that welders could be so cheap.

I'm not planning to buy one, but I am interested in more information.
Could the welder as linked above do the welding that I need done? (If
you don't remember, I have a 4" pipe nipple to attach to an endcap....or
I did; now I'm planning to go another route.) Would it survive a trip
through a ~1500 F furnace? How much experience/training is required to
use something like this?



  #5   Report Post  
Don Foreman
 
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On Fri, 23 Jan 2004 16:05:51 GMT, PhysicsGenius
wrote:

http://www.use-enco.com/CGI/INSRIT?PMAKA=140-0005

I was complaining on another site about my crucible problem and how I
didn't have a welder. Someone said "so just buy one". I had no idea
that welders could be so cheap.

I'm not planning to buy one, but I am interested in more information.
Could the welder as linked above do the welding that I need done? (If
you don't remember, I have a 4" pipe nipple to attach to an endcap....or
I did; now I'm planning to go another route.) Would it survive a trip
through a ~1500 F furnace? How much experience/training is required to
use something like this?


Such "toy welders" are an exercise in frustration and a waste of
money. You should be able to find a 220V 200-amp "buzzbox" with
adjustable current output for that money or a few $ more. The
difference in capability and ease of use is huge.

The little 70-amp 110-volt toys can only use 1/16" or 3/32" rod (hard
to find), it's not easy for a beginner to strike an arc with them, and
once the arc is struck the resulting weld is likely to be crap unless
one already has enough arcwelding skill to manage a small puddle.
On the other hand, about any 220V buzzbox will run 1/8" rod
(typically 125 amps or so), is easy to strike an arc with 6013 or
7014 rod, and even a beginner can make decent welds in steel 1/8"
to 3/8" thick, thicker and thinner with more practice.

A weldment in steel will have no problem with 1500F. The weld will
endure as well as the rest of the parts do.



  #6   Report Post  
Rossco in Oshawa
 
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I bought a Lincoln "Hobby Weld" about two years ago to fix a broken rake and
have found the thing to be one of the handiest tools I own. Fabricated
heavy sheet metal stuff from scratch with it and fixed countless light metal
things with it.
I would love either a OA cutting torch and/or a small MIG unit but too
pricey.

"PhysicsGenius" wrote in message
...
http://www.use-enco.com/CGI/INSRIT?PMAKA=140-0005

I was complaining on another site about my crucible problem and how I
didn't have a welder. Someone said "so just buy one". I had no idea
that welders could be so cheap.

I'm not planning to buy one, but I am interested in more information.
Could the welder as linked above do the welding that I need done? (If
you don't remember, I have a 4" pipe nipple to attach to an endcap....or
I did; now I'm planning to go another route.) Would it survive a trip
through a ~1500 F furnace? How much experience/training is required to
use something like this?


  #7   Report Post  
geoff merryweather
 
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Default portable welder

On Fri, 23 Jan 2004 16:05:51 GMT, PhysicsGenius
wrote:

http://www.use-enco.com/CGI/INSRIT?PMAKA=140-0005

I was complaining on another site about my crucible problem and how I
didn't have a welder. Someone said "so just buy one". I had no idea
that welders could be so cheap.

I'm not planning to buy one, but I am interested in more information.
Could the welder as linked above do the welding that I need done? (If
you don't remember, I have a 4" pipe nipple to attach to an endcap....or
I did; now I'm planning to go another route.) Would it survive a trip
through a ~1500 F furnace? How much experience/training is required to
use something like this?


Small stick welders are dirt cheap - especially second hand. That one
is a bit small (70 amps). Look for one around 140-150A (more is
better). eg
http://www.harborfreight.com/cpi/cta...temnumber=2665
http://www.harborfreight.com/cpi/cta...emnumber=33249
(220V)
http://www.harborfreight.com/cpi/cta...emnumber=33245
(220V)

http://www.harborfreight.com/cpi/cta...emnumber=55060
(low duty cycle but 115v)
Look around second hand.; 220V is much better than 115V if you have
it.
Longer term, an automatic welding helmet is nice thing to have. i
have
http://www.harborfreight.com/cpi/cta...emnumber=46092
and like it.

A welder is a very handy thing to have and once you have one, you
will use it a lot as it opens up all sorts of possibiltiies for repair
or fabrication of "stuff" you wouldn't otherwise make or buy.
Geoff
  #8   Report Post  
PhysicsGenius
 
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geoff merryweather wrote:
On Fri, 23 Jan 2004 16:05:51 GMT, PhysicsGenius
wrote:


http://www.use-enco.com/CGI/INSRIT?PMAKA=140-0005

I was complaining on another site about my crucible problem and how I
didn't have a welder. Someone said "so just buy one". I had no idea
that welders could be so cheap.

I'm not planning to buy one, but I am interested in more information.
Could the welder as linked above do the welding that I need done? (If
you don't remember, I have a 4" pipe nipple to attach to an endcap....or
I did; now I'm planning to go another route.) Would it survive a trip
through a ~1500 F furnace? How much experience/training is required to
use something like this?



Small stick welders are dirt cheap - especially second hand. That one
is a bit small (70 amps). Look for one around 140-150A (more is
better). eg
http://www.harborfreight.com/cpi/cta...temnumber=2665
http://www.harborfreight.com/cpi/cta...emnumber=33249
(220V)
http://www.harborfreight.com/cpi/cta...emnumber=33245
(220V)

http://www.harborfreight.com/cpi/cta...emnumber=55060
(low duty cycle but 115v)
Look around second hand.; 220V is much better than 115V if you have
it.
Longer term, an automatic welding helmet is nice thing to have. i
have
http://www.harborfreight.com/cpi/cta...emnumber=46092
and like it.

A welder is a very handy thing to have and once you have one, you
will use it a lot as it opens up all sorts of possibiltiies for repair
or fabrication of "stuff" you wouldn't otherwise make or buy.
Geoff


Some others were saying that I wouldn't get a safe/effective weld (for
my current application) with the welder I linked to. Would these
heavier duty ones do the job?
  #9   Report Post  
Don Foreman
 
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On Sun, 25 Jan 2004 13:27:44 GMT, PhysicsGenius
wrote:



Some others were saying that I wouldn't get a safe/effective weld (for
my current application) with the welder I linked to. Would these
heavier duty ones do the job?


Maybe, but dutycycle is very limited on those small boxes. One of 'em
is 6% at rated current, which is 36 seconds of welding in any 10
minute period.

Check out
http://cgi.ebay.com/ws/eBayISAPI.dll...tegory=45 031

http://cgi.ebay.com/ws/eBayISAPI.dll...tegory=11 704

http://cgi.ebay.com/ws/eBayISAPI.dll...tegory=45 031

and others like it.

Machines like this will absolutely do what you want to do, and a lot
of other stuff as well. They are capable machines and nearly
indestructable.



  #10   Report Post  
PhysicsGenius
 
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Don Foreman wrote:
On Sun, 25 Jan 2004 13:27:44 GMT, PhysicsGenius
wrote:



Some others were saying that I wouldn't get a safe/effective weld (for
my current application) with the welder I linked to. Would these
heavier duty ones do the job?



Maybe, but dutycycle is very limited on those small boxes. One of 'em
is 6% at rated current, which is 36 seconds of welding in any 10
minute period.

Check out
http://cgi.ebay.com/ws/eBayISAPI.dll...tegory=45 031

http://cgi.ebay.com/ws/eBayISAPI.dll...tegory=11 704

http://cgi.ebay.com/ws/eBayISAPI.dll...tegory=45 031

and others like it.

Machines like this will absolutely do what you want to do, and a lot
of other stuff as well. They are capable machines and nearly
indestructable.


Is basically just more amperage?


  #11   Report Post  
GTO69RA4
 
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Is basically just more amperage?

They are considerably more powerful, but they're just better welders overall.
Smoother arc, easier to start, more power at the high end, probably 100% duty
cycle at 80-120 amps like you use most of the time, the machines'll last
longer, can use heavier rods, etc.

GTO(John)
  #12   Report Post  
PhysicsGenius
 
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Default portable welder

GTO69RA4 wrote:
Is basically just more amperage?



They are considerably more powerful, but they're just better welders overall.
Smoother arc, easier to start, more power at the high end, probably 100% duty
cycle at 80-120 amps like you use most of the time, the machines'll last
longer, can use heavier rods, etc.


Great, now I'll I need is a rich relative to die. Or at least a job.
  #13   Report Post  
Backlash
 
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Genius, If you want something bad enough, you can get it. I took $10 as a
bet with a friend a few years ago and turned it into $6,500 from spring till
the end of fall, just by going to auctions and yard sales, which I enjoy,
and buying any utility type item I thought I could resell at a profit.
Remember, if you buy even a 2 dollar item and sell it for $4, that's a
pretty good return. Rolled some of the money back into purchases so it would
snowball. We have a local Bargain Trader magazine around here, and in it you
can advertise any 3 items at a time per week selling for $1500 each or less
for free. Whenever people would come to look at a larger item, usually they
would end up buying several smaller items. I bought $4,500 in new tools for
my shop by the end, and put 2 grand in my pocket. Just a couple of weeks
ago, I bought a Toshiba 32" TV for my upcoming new shop at a yard sale for
$40. That one's a keeper.

RJ

"PhysicsGenius" wrote in message
...
GTO69RA4 wrote:
Is basically just more amperage?



They are considerably more powerful, but they're just better welders

overall.
Smoother arc, easier to start, more power at the high end, probably 100%

duty
cycle at 80-120 amps like you use most of the time, the machines'll last
longer, can use heavier rods, etc.


Great, now I'll I need is a rich relative to die. Or at least a job.



  #14   Report Post  
Paul Amaranth
 
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PhysicsGenius wrote in message ...
GTO69RA4 wrote:
Is basically just more amperage?



They are considerably more powerful, but they're just better welders overall.
Smoother arc, easier to start, more power at the high end, probably 100% duty
cycle at 80-120 amps like you use most of the time, the machines'll last
longer, can use heavier rods, etc.


Great, now I'll I need is a rich relative to die. Or at least a job.


I have a Miller 180-P 180 amp AC welder I'd like to get rid of. Comes
with cables, electrode holder and ground clamp - $140. Course,
shipping would be a pain. It's probably around 100 pounds.

Anyone interested?

Paul
  #15   Report Post  
GTO69RA4
 
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You wouldn't happen to be in Eastern MA, would you?

GTO(John)

I have a Miller 180-P 180 amp AC welder I'd like to get rid of. Comes
with cables, electrode holder and ground clamp - $140. Course,
shipping would be a pain. It's probably around 100 pounds.

Anyone interested?

Paul



  #16   Report Post  
Brian Lawson
 
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Hey Paul,

What voltage/curent supply is required?

Take care.

Brian Lawson,
Bothwell, Ontario.
XXXXXXXXXXXXXX
On 25 Jan 2004 18:42:20 -0800, (Paul Amaranth)
wrote:


I have a Miller 180-P 180 amp AC welder I'd like to get rid of. Comes
with cables, electrode holder and ground clamp - $140. Course,
shipping would be a pain. It's probably around 100 pounds.

Anyone interested?

Paul


  #18   Report Post  
geoff merryweather
 
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Default portable welder

On Sun, 25 Jan 2004 13:27:44 GMT, PhysicsGenius
wrote:

Some others were saying that I wouldn't get a safe/effective weld (for
my current application) with the welder I linked to. Would these
heavier duty ones do the job?

Having more current makes them a lot better to use. Duty cycle is
still a bit low on some of them, but it depends on what you are doing.
More current means you can use bigger rods (faster and more
penetration) and th duty cycle at the lower settings is usually higher
than a small welder at the same setting.
Second hand stick welders are common and cheap and run forever. With
next to no moving parts (usually 2 wheels...) there is nothing to go
wrong. Have a look at the local free-ad papers, auctions, etc. The big
constraint is power - do you have 220V. 115V welders are a bit of a
waste of time, unless you have no option.
Geoff
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