Procedure

• Before starting the process read the instructions completely
• Press Start button to start the simulator.
• Select the type of welding speed 2 mm/s or 4 mm/s .
• Observe the Temperature Vs Time plot.
• Hover on the plot to see the temparature variation with time.
• Below the plot observe the Peak temperature values.
• Click on the Stop button to stop the simulation.

Discussion:

Calculate the peak temperature by using the following formula.

$$ \frac{1}{T_p-T_o}=\frac{4.132* C * \rho * t * x}{H_{net}}+\frac{1}{T_m-T_o} $$

Where,

\( T_p \) = Peak temperature (K)

\( T_o \)= Ambient temperature of the workpiece (K)

\( \rho \) = density of the workpiece (g/mm³)

\( C \) = specific heat of the workpiece (J/g K ^-1)

\( t \) = workpiece thickness (mm)

\( x \) = distance from weld centre line (mm)

\( T_m \)= Melting temperature of the workpiece (K)

\( H_{net} = \frac{q}{v} \) in (J/m)

Where,

\( q \)= heat or energy (J/s)

\( v \)= Welding speed (m/s)

Compare the peak temperature obtained from the formula with Virtual experimental result

Take material as mild steel

\( t = 6 mm \)

\( T_o= 298K\)

\( \rho = 0.008 g/mm^3 \)

\( C= 0.5107896 J/g K^{-1} \)

\( q= 1589.92J/s \)

Assume distance from the weld centre line as 5, 10, and 15mm.