Engineering, 05.05.2020 07:27, sofo24

A submerged arc-welding operation under automatic control is used to butt weld two round steel tubes with diameters = 2.0 m. The tubes are slowly rotated under a stationary welding head to complete the weld seam. Welding voltage = 25 volts, and current = X1 amps. The heat transfer factor for SAW = 0.95, and the melting factor = 0.8. Cross-sectional area of the weld bead = 50.0 mm2 . If the melting temperature of the steel = 1490°C, and its unit melting energy = 10.3 J/mm3, determine the (a) rotational speed of the tubes and (b) time required to weld the seam

Answers: 3

Show answers

Other questions on the subject: Engineering

Engineering, 04.07.2019 16:10, TheOriginalMeyah

An electrical motor raises a 50kg load at a construct velencity .calculate the power of the motor, if it takes 40sec to raise the load through a height of 24m(take g =9.8n/g)

Answers: 2

continue

Engineering, 04.07.2019 18:10, heidiburgos1own6c0

Fluids at rest possess no flow energy. a)- true b)- false

Answers: 3

continue

Engineering, 04.07.2019 18:10, lerasteidl

Determine whether or not it is possible to compress air adiabatically from k to 140 kpa and 400 k. what is the entropy change during this process?

Answers: 3

continue

Engineering, 04.07.2019 18:10, soreese02

An ideal otto cycle with air as the working fluid has a compression ratio of 8. the minimum and maximum temperatures in the cycle are 300 k and 1340 k. use constant specific heats at room temperature to determine (a) the amount of heat transferred to the air during the heat- addition kj/kg, (b) the thermal efficiency, and (c) the thermal efficiency of a carnot cycle ope limits. process, in rating between the same temperature

Answers: 2

continue

Do you know the correct answer?

A submerged arc-welding operation under automatic control is used to butt weld two round steel tubes...