In submerged arc welding, the arc is struck between | Mechanical Engineering Questions for Interview
A. Consumable coated electrode and work piece
B. Non-consumable electrode and workpiece
C. Consumable bare electrode and work piece
D. Tungsten electrodes and work piece
Answer:C
In submerged arc welding, the arc is struck between | Mechanical Engineering Questions for Interview
A. Consumable coated electrode and work piece B. Non-consumable electrode and workpiece C. Consumable bare electrode and work piece D. Tungsten electrodes and work piece
Explanation: Submerged arc welding is a type of arc welding process in which heat is created between bare consumable electrode wire and the work item through an arc. The arc and weld zone are fully encased in a covering of granular, fusible flux that melts and seals the weld pool against ambient air. The molten flux interacts with the molten metal, producing slag that enhances its characteristics and subsequently floats on top of the molten metal, shielding it from ambient gas contamination and slowing the cooling rate.