The formula to calculate the Heat Input (Hi) is:
Hi=A⋅V⋅sL
Where:
A welding heat input is the amount of heat required to weld a piece of material at a certain current, voltage, and speed.
Consider an example where:
Using the formula to calculate the Heat Input:
Hi=200⋅24⋅6010=28800 Joules/inch
This means that the heat input for this example is 28800 Joules/inch.