Migatronic SIGMA GALAXY, Журнал и инструкция по эксплуатации

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Miga log function
3. After welding
If the Miga log-function is active, this screen will be
displayed after finished welding:
The screen is identical with the screen displayed under
the menu ”Statistics” -> ”Miga log”. Here it is possible
to add ”Seam Length” for calculation of ”Heat input”.
Data in the file is updated when the “Seam Length” is
changed.
The screen automatically shifts to the main screen
after some seconds, if a new welding is ignited or the
encoders are used.
4. Calculation of heat input
”Travel speed”
If ”Travel speed” is bigger than 0, and the value of
”Seam length” is 0, then Heat input will be calculated
according to the following formula:
H = (U x I x P) / v
[kJ/m]
Here U is welding voltage, I is welding current,
P is process factor and V is travel speed.
”Seam length”
If ”Seam length” is bigger than 0, then Heat input will
be calculated according to the following formula:
H = (U x I x P x S) / L
[kJ/m]
Here U is welding voltage, I is welding current, P
is process factor and S is arc time measured by the
welding machine and L is the seam length.
4.1 Process factor
This factor indicates how big a part of the arc power
that is actually transferred to the work piece. The size
of the factor is standard 0.80.