The formula for determining heat input has the following variables: Amperage, Voltage, Distance and Time. AxVx60/Inches per Minute. Polarity is not considered in the heat input calculation.
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of ali asghari
Sent: February-12-10 9:29 PM
To: materials-welding@googlegroups.com
Subject: Re: [MW:4297] AFFECT POLARITY IN HEAT INPUT
thank you
but my inyention is distribution of heat is differed by polarity , therefore H.I depend to polarity.is it true?
regards
On Sat, Feb 13, 2010 at 2:04 AM, <george.dilintas@gr.bureauveritas.com> wrote:
It is because of the difference of the electrons flow I think
From: Ali Asghari [asghariali@rocketmail.com]
Sent: 11/02/2010 23:44 PST
To: materials-welding@googlegroups.com
Subject: [MW:4291] AFFECT POLARITY IN HEAT INPUT
Hi All
all know that heat input is independent from polarity.but i see in GTAW that in DCEN ,70%HEAT generated in arc concentrated in parent metal & in DCEP 30% HEAT concentrated in base metal.
can anybody clarify it?
regards.
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