Using the Heat Input Calculator, you can calculate how much heat energy is required to perform a particular welding operation. In order to calculate the heat input required, this calculator takes into account voltage, current, time, and length of the weld. This calculation is important because it ensures a quality and strong weld.
Heat Input Calculator – Calculate Welding Heat Input per Unit Length
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Formula for Heat Input Calculator
Hi = A * V * S / L
Where:
- Hi is the heat input (Joules/inch)
- A is the welding current (amps)
- V is the arc voltage (volts)
- S is the time (seconds)
- L is the length (inch)
To use the formula, you need to measure the voltage, current, time, and length of the weld. You can then plug these values into the formula to determine the heat input required.
Example of Heat Input Calculation
Suppose you are welding a piece of metal that is 10 inches long, and you are using a welding current of 150 amps and an arc voltage of 20 volts.
If the welding process takes 5 seconds, you can calculate the heat input required as follows:
Hi = 150 * 20 * 5 / 10
= 1500 Joules/inch
This means that you would need a heat input of 1500 Joules per inch of weld to complete the job successfully.
How to Calculate Heat Input
To use the Heat Input Calculator, follow these steps:
- Enter the voltage, current, time, and length values in the input fields provided.
- Click the “Calculate” button.
- The heat input required for the welding operation will be displayed in Joules/inch.
It is important to note that the Heat Input Calculator is only a tool and that the results it provides should be used as a guide. There are also other factors that affect the amount of heat input needed, including the type of metal being welded, its thickness, and the welding technique. If you are unsure about the amount of heat required for a particular welding operation, consult with a professional.