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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Default Welding Torch is allways NEGATIVE



Lets start a big arguement .....

WHY ??

WHY weld negative ?

Cause ya can't get the torch hotter than the work .

Even in old vac tubes , plate ( aka "anode" cause its + )
gets hotter . They had to heat the cathode ! It was
running too cool .



S.S. , tung' negative will keep work hotter than
tung' .. works better .


Stick . 6011 . ! AC is the reason for the noise
and splatter ! Try H'F' e-welder for $200 . Its
very quiet .

Novices notice ,, Stick pos ,, is easier to start .

True , if ya overheat , the stick ,

it sends off electrons easier , but it overheats

the rod , and where are you now !

Lower penetration .


Never use an old 60hz , AC machine ,
they are difficult to weld with .


Learn on a modern hi-frequency D.C. box .















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Default Welding Torch is allways NEGATIVE

kc7cc writes:
lots snipped
Even in old vac tubes , plate ( aka "anode" cause its + )
gets hotter . They had to heat the cathode ! It was
running too cool .


This had nothing to do with relative temperatures of cathode and anode,
nor with the cathode "running too cool". It was pretty fundamentally
different from an arc, and doesn't work as an analogy. The cathode had
to be heated to boil off electrons, which could then be attracted to the
anode.
--
As we enjoy great advantages from the inventions of others, we should
be glad of an opportunity to serve others by any invention of ours;
and this we should do freely and generously. (Benjamin Franklin)
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Default Welding Torch is allways NEGATIVE

On Wed, 16 Sep 2009 21:18:15 -0700 (PDT), kc7cc
wrote:



Lets start a big arguement .....

WHY ??

WHY weld negative ?

Cause ya can't get the torch hotter than the work .

Even in old vac tubes , plate ( aka "anode" cause its + )
gets hotter . They had to heat the cathode ! It was
running too cool .



S.S. , tung' negative will keep work hotter than
tung' .. works better .


Stick . 6011 . ! AC is the reason for the noise
and splatter ! Try H'F' e-welder for $200 . Its
very quiet .

Novices notice ,, Stick pos ,, is easier to start .

True , if ya overheat , the stick ,

it sends off electrons easier , but it overheats

the rod , and where are you now !

Lower penetration .


Never use an old 60hz , AC machine ,
they are difficult to weld with .


Learn on a modern hi-frequency D.C. box .



Learn on an old 60 hz box, you'll be a better welder when you move up
in power sources.

electode positive is good on thin sheet metal. ( when stick welding)

Thank You,
Randy

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Default Welding Torch is allways NEGATIVE

On Wed, 16 Sep 2009 21:18:15 -0700 (PDT), kc7cc wrote:



Lets start a big arguement .....



Novices notice ,, Stick pos ,, is easier to start .

True , if ya overheat , the stick ,

it sends off electrons easier


Just think on that statement for a moment...



Mark Rand
RTFM
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