Heat Input

Written by Jerry Ratzlaff on . Posted in Welding Engineering

Heat input, abbreviated as \(H_i\), is the measure of energy that is supplied to the material to form a weld.

 

Heat Input Formulas

\(\large{ H_i  =  A \; V \; \frac{0.06}{s} \; T }\)   
\(\large{ H_i  = \frac{ 60 \; A \; V }{ 1000 \; s }  }\)  

Where:

\(\large{ H_i }\) = heat input

\(\large{ A }\) = welding current

\(\large{ T }\) = thermal efficiency (depends on the welding process used)

\(\large{ s }\) = welding speed

\(\large{ V }\) = arc voltage

 

Tags: Equations for Thermal Equations for Welding