a. What are the three main process variables in the gas arc welding processes? Two pieces of steel, 6 in. long, 2 in. wide, and in. in thickness, are butt welded together, with the long sides joined...

a. What are the three main process variables in the gas arc welding processes?

Two pieces of steel, 6 in. long, 2 in. wide, and in. in thickness, are butt welded together, with the long sides joined together. The power supply is rated at 200 A with a 20 percent duty cycle. The electrodes are E 7014, i in. in diameter, and the welding conditions are 160 A and 24 V. The travel speed is 10 in./min, and the operator factor is 0.60. Assume a production run of 1000 welds is to be made.

a. What is the weld time per piece? (1 midpiece)

b. What is the arc time per piece? (0.60 mirdpiece)

c. What is the production rate? (60 pcshr)

d. What is the energy per unit length? (23,040 J/in.)

e. Will the power supply overheat? Explain your answer with numerical calculations. (yes)