0 votes 0 votes In a linear arc welding process, the heat input per unit length is inversely proportional to welding current welding voltage welding speed duty cycle of the power source Materials, Manufacturing and Industrial Engineering gateme-2015-set1 materials-manufacturing-and-industrial-engineering casting-forming-and-joining-process principles-of-welding + – Arjun asked Feb 24, 2017 • recategorized Mar 4, 2021 by Lakshman Bhaiya ♦Arjun 28.5k points answer See all 0 reply