how high the voltage in a stick welding machine can reach?

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Hello, I have an inverter 200 amps welding machine and I was wondering if the voltage goes up while I'm welding. the welder should have 60 volt before starting to weld, which is border with safety voltage. is I'm welding in the heat goes up conductivity goes down I assume the welder try to compensate and higher the voltage and so the surface has higher voltage. is it true? thank you
Reply:The old buzz box's typically have 40 to 80 ocv.This aids in start the weld then drops down to 18 to 24 volts for most rod. Larger rods may a higher voltage.  The voltage is taken from the stinger and point of weld not the machine. Dave

Originally Posted by meni

Hello, I have an inverter 200 amps welding machine and I was wondering if the voltage goes up while I'm welding. the welder should have 60 volt before starting to weld, which is border with safety voltage. is I'm welding in the heat goes up conductivity goes down I assume the welder try to compensate and higher the voltage and so the surface has higher voltage. is it true? thank you
Reply:Most stick and TIG welders are constant current, even if it is an inverter, so I would expect the voltage to change as the welder tries to maintain a constant welding current. But that voltage change may be up or down. The arc length will be the main factor in that.Miller Multimatic 255
Reply:

Originally Posted by meni

Hello, I have an inverter 200 amps welding machine and I was wondering if the voltage goes up while I'm welding. the welder should have 60 volt before starting to weld, which is border with safety voltage. is I'm welding in the heat goes up conductivity goes down I assume the welder try to compensate and higher the voltage and so the surface has higher voltage. is it true? thank you
Reply:

Originally Posted by meni

Hello, I have an inverter 200 amps welding machine and I was wondering if the voltage goes up while I'm welding. the welder should have 60 volt before starting to weld, which is border with safety voltage. is I'm welding in the heat goes up conductivity goes down I assume the welder try to compensate and higher the voltage and so the surface has higher voltage. is it true? thank you
Reply:

Originally Posted by Louie1961

Most stick and TIG welders are constant current, even if it is an inverter, so I would expect the voltage to change as the welder tries to maintain a constant welding current. But that voltage change may be up or down. The arc length will be the main factor in that.
Reply:

Originally Posted by Oscar

You're thinking about it too much.  The local conductivity goes down due to temperature, but the path of least resistance will be followed, which will be along the lower temperature gradient.  And even then, its not that much different.  Clamp an ammeter to your stinger or work clamp and record it as you weld.  I'd bet you'd be surprised at how small the difference is.
Reply:

Originally Posted by 52 Ford

I believe the highest OCV you'll see in a constant current welder is 80 volts. https://www.materialwelding.com/what...r%20insulation.Sent from my Lincoln Buzzbox using Tapatalk