ʌnlˈaɪk sˈɪŋɡəlkˈɑːɹbən ˈɑːɹk wˈɛldɪŋ, ɪn twˈɪŋkˈɑːɹbən ˈɑːɹk wˈɛldɪŋ tˈiːkˈɔː ðɪ ˈɑːɹk ɪz meɪntˈeɪnd bᵻtwˌiːn tˈuː kˈɑːɹbən ɡɹˈæfaɪt ᵻlˈɛktɹoʊdz hˈɛld ɪn ɐ spˈɛʃəl hˈoʊldɚ.
Unlike single-carbon arc welding, in twin-carbon arc welding (TCAW) the arc is maintained between two carbon (graphite) electrodes held in a special holder.