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Posted by Ignoramus30285 on April 6, 2006, 2:06 pm
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I do not understand what DIG means... or why it is needed... thanks...
i
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Posted by Trevor Jones on April 6, 2006, 8:00 pm
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Ignoramus30285 wrote:
>
> I do not understand what DIG means... or why it is needed... thanks...
>
> i
Is it one of the switch selections?
Two possibilities are that it is a setting to use when deep penetration
is wanted, such as butting two thick plates together, or that it is
meant to be used with a gouging torch for grooving out or removing
metal.
Just a wild assed guess though.
Cheers
Trevor Jones
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Posted by Richard Ferguson on April 6, 2006, 11:41 pm
Please log in for more thread options From the Miller welder website.
"Offering exceptional arc characteristics for different electrodes and
joint designs, the Trailblazer 302 Diesel features four preset DIG
settings. Providing combined DIG and Process switch, along with preset
DIG settings, offers simple set up without the complication of multiple
switches. The four preset DIG settings include: soft arc and smooth 7018
performance, medium-soft driving arc, medium-stiff driving arc and
driving arc such as pipe welding."
About the Miller Maxtar 200.
"DIG control allows the arc characteristics to be changed for specific
applications and electrodes. Lower the DIG setting for smooth running
electrodes like 7018 and increase the DIG setting for stiffer, more
penetrating electrodes like 6010."
Miller Inverter power sources
"Dig control for Stick welding. Dig control prevents the electrode from
sticking when the arc gets too short. This is helpful for an open-root
pass or tight fit-up work and aids in arc initiation."
I am not sure electrically what is changed when you change the DIG
setting, but you can see above examples of how the DIG control is
supposed to affect the welding arc, apparently by affecting the
penetration and tendency to stick. I have heard of this before. As far
as I know it affects stick welding only, but I could be mistaken.
Richard
Ignoramus30285 wrote:
> I do not understand what DIG means... or why it is needed... thanks...
>
>
> i
>
--
http://www.fergusonsculpture.com
Sculptures in copper and other metals
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Posted by Don Foreman on April 7, 2006, 1:51 am
Please log in for more thread options On Thu, 06 Apr 2006 18:06:21 GMT, Ignoramus30285
>I do not understand what DIG means... or why it is needed... thanks...
>
>
>i
Arc welding is nominally done with a constant current supply. DIG
alters this by increasing current at lower arc voltages resulting
from shorter arcs. This keeps rods from sticking, among other
things.
The power to the arc is arc current * arc voltage, so as the arc get
shorter and voltage drops, power (hence heat) goes down unless
current is increased.
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Posted by Ignoramus25712 on April 7, 2006, 7:37 am
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> On Thu, 06 Apr 2006 18:06:21 GMT, Ignoramus30285
>
>>I do not understand what DIG means... or why it is needed... thanks...
>>
>>
>>i
>
> Arc welding is nominally done with a constant current supply. DIG
> alters this by increasing current at lower arc voltages resulting
> from shorter arcs. This keeps rods from sticking, among other
> things.
>
> The power to the arc is arc current * arc voltage, so as the arc get
> shorter and voltage drops, power (hence heat) goes down unless
> current is increased.
Thanks Don, that was a great explanation.
i
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> I do not understand what DIG means... or why it is needed... thanks...
>
> i