The formula to calculate the welding time (WT) is:
\[ WT = \frac{L}{S} \]
Where:
Let's say the weld length is 100 inches and the welding speed is 20 inches per minute. Using the formula:
\[ WT = \frac{100}{20} \]
We get:
\[ WT = 5 \]
So, the welding time (\( WT \)) is 5 minutes.