η
Mistake: Entering 0.5 when you mean 50%.
Fix: Enter 50 for 50%; 0.5 represents 0.5%.
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Weld heat-input planner
Turn voltage, current, travel speed and process efficiency into arc and effective heat input.
This tool is archived. Recheck its method and dated data before use.
01Enter your values
Runs in your browserRuns offline in your browser. Once the page and required files have loaded, processing needs no internet.
02Weld heat-input planner
Runs in your browser
How it works
Turn voltage, current, travel speed and process efficiency into arc and effective heat input.
arc kJ/mm = V × A × 60 / (1000 × mm/min); effective = arc × η
Runs in your browser
Discovery source
Your data stays yours
Inputs are processed on this page and are never sent to a server.
About this tool
Use tool ↑Turn voltage, current, travel speed and process efficiency into arc and effective heat input.
Arc energy is V × A × 60 ÷ travel speed; effective heat input applies the entered efficiency. This worksheet does not qualify a welding procedure.
- Enter your values
- V
- I
- v
- η
- Calculation method
arc kJ/mm = V × A × 60 / (1000 × mm/min); effective = arc × η
- Example scenario · Result
0.6912 kJ/mm
Calculation method
- Arc energy is V × A × 60 ÷ travel speed; effective heat input applies the entered efficiency.
- This worksheet does not qualify a welding procedure.
arc kJ/mm = V × A × 60 / (1000 × mm/min); effective = arc × η
Weld heat-input planner
- V
- 24 V
- I
- 180 A
- v
- 300 mm/min
- η
- 80 %
Result
0.6912 kJ/mm
Frequently asked questions
Why is efficiency a user input?
Thermal efficiency depends on the process and governing method; enter the value required by your procedure.
Where does my data go?
Calculations run on your device. Form inputs are not sent to a server.
Terms and definitions
Enter your values
- Measurement system
The initial choice follows your browser region. Your choice is remembered on this device. Gallons are US gallons. Switching units keeps your numbers unchanged and interprets them in the new unit.
Numbers stay unchanged. Check the new unit and enter the intended measurement, or select an example for that system.
- V
Arc voltage during welding
Enter a numerical value for this quantity. Use the unit shown beside this field. V
Minimum: 0.01 · Maximum: 1000 V
- I
Welding current
Enter a numerical value for this quantity. Use the unit shown beside this field. A
Minimum: 0.01 · Maximum: 10000 A
- v
Distance the weld travels per minute
Enter a numerical value for this quantity. Use the unit shown beside this field. mm/min / in/min
Minimum: 0.01 · Maximum: 1000000 mm/min
- η
Fraction of arc energy transferred as heat, expressed as a percentage
Enter a percentage, not its decimal fraction: 50 means 50%. Use the unit shown beside this field. %
Minimum: 0 · Maximum: 100 %
Result
- Result
Arc energy is V × A × 60 ÷ travel speed; effective heat input applies the entered efficiency. This worksheet does not qualify a welding procedure.
Calculated from your entries using the method below.
- Earc
Arc energy is V × A × 60 ÷ travel speed; effective heat input applies the entered efficiency. This worksheet does not qualify a welding procedure.
Calculated from your entries using the method below.
- P
Arc energy is V × A × 60 ÷ travel speed; effective heat input applies the entered efficiency. This worksheet does not qualify a welding procedure.
Calculated from your entries using the method below.
- E/m
Arc energy is V × A × 60 ÷ travel speed; effective heat input applies the entered efficiency. This worksheet does not qualify a welding procedure.
Calculated from your entries using the method below.
- Value
Arc energy is V × A × 60 ÷ travel speed; effective heat input applies the entered efficiency. This worksheet does not qualify a welding procedure.
Calculated from your entries using the method below.
- Eeff
Arc energy is V × A × 60 ÷ travel speed; effective heat input applies the entered efficiency. This worksheet does not qualify a welding procedure.
Calculated from your entries using the method below.
Common mistakes and quick fixes
V · I · v
Mistake: Changing units and assuming the entered numbers were converted.
Fix: Numbers stay unchanged. Check the new unit and enter the intended measurement, or select an example for that system.
Why is efficiency a user input?
Mistake: Treating a result as valid outside the described scope.
Fix: Thermal efficiency depends on the process and governing method; enter the value required by your procedure.
Limits and key assumptions
- Thermal efficiency depends on the process and governing method; enter the value required by your procedure.
- This worksheet does not qualify a welding procedure.
- Displayed results may be rounded; rounding does not add measurement precision.