Topic: Manufacturing
In a linear arc welding process, the heat input per unit length is inversely proportional to
- A. welding current
- B. welding speed
- C. welding voltage
- D. duty cycle of power source
Answer: B. welding speed
Explanation: In a linear arc welding process, the heat input per unit length is inversely proportional to welding speed. As we increase welding speed, heat input per unit length decreases due to less time available for heat transfer.