Welding Heat Input
Arc heat input Q = V·I·60 / (v·1000) - a key control parameter for thick-plate steel welding and hardness prevention.
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Formula, assumptions, and limits
| Symbol | Meaning | Unit |
|---|---|---|
| Arc voltage | V | |
| Welding current | A | |
| Travel speed | mm/min | |
| Arc-process efficiency |
Source: AWS D1.1 - Structural welding code steel; IACS UR W11 / W22
In short
Arc heat input Q = V\u00b7I\u00b760 / (v\u00b71000) - a key control parameter for thick-plate steel welding and hardness prevention.