0 0 votes In a DC arc welding operation, the voltage-arc length characteristic was obtained as $V_{arc} = 20+5l$ where the arc length $l$ was varied between $5$ mm and $7$ mm. Here $V_{arc}$ denotes the arc voltage in $Volts$. The arc current was varied from $400$ A and $500$ A. Assuming linear power source characteristic, the open circuit voltage and the short circuit current for the welding operation are $45$ V, $450$ A $75$ V, $750$ A $95$ V, $950$ A $150$ V, $1500$ A Materials, Manufacturing and Industrial Engineering gateme-2012 materials-manufacturing-and-industrial-engineering casting-forming-and-joining-process principles-of-welding + – Andrijana3306 388 views answer comment Share Follow Add Sync Questions 0 reply Please log in or register to add a comment.
