A corner fillet weld with cross sectional area of 75 mm is made using oxyacetylene welding. Material of the welded plates is low carbon steel (Um = 10.3 J/mm³. Travel speed at which the bead is formed = 5 mm/s. Assume that only 40% of the energy generated by the torch is used for melting the metal; the rest is dissipated. If heat of combustion for acetylene is= 54.8 MJ/m³, determine the volume flow rate of acetylene required to perform this OAW operation.

A corner fillet weld with cross sectional area of 75 mm is made using oxyacetylene welding. Material of the welded plates is low carbon steel (Um = 10.3 J/mm³. Travel speed at which the bead is formed = 5 mm/s. Assume that only 40% of the energy generated by the torch is used for melting the metal; the rest is dissipated. If heat of combustion for acetylene is= 54.8 MJ/m³, determine the volume flow rate of acetylene required to perform this OAW operation.

Welding: Principles and Applications (MindTap Course List)

8th Edition

ISBN:9781305494695

Author:Larry Jeffus

Publisher:Larry Jeffus

Chapter4: Shielded Metal Arc Welding Of Plate

Section: Chapter Questions

Problem 25R: Can a tee weld be strong if the welds on both sides do not have deep penetration? Why or why not?

See similar textbooks

Similar questions

Can a tee weld be strong if the welds on both sides do not have deep penetration? Why or why not?
List the five joint types used in welding.
What are some of the problems that oxygen can cause in welds?
What are the disadvantages of beveling plates for welding?
A gas tungsten arc welding operation is performed using a current 520 A and arc voltage of 30 V at a welding speed 5 mm/s. Assuming that the arc efficiency is 70 %. Determine the net heat input per unit length of the weld.
I need the answer as soon as possible
A continuous fillet wild is used to weld two pieces of 7.0-mm-thick austenitic stainless steel plate in an arc-welding operation. The plates are joined at a 90° angle using an inside fillet corner joint. The velocity of the welding head is 6 mm/sec. Assume the cross section of the weld bead approximates a right angle isosceles triangle (a right triangle with the two legs and their corresponding angles equal) with a leg length of 4.5 mm. The length of the weld = 230 mm. The melting factor of the setup = 0.65, the heat transfer factor = 0.90, and the Tm for austenitic stainless steel = 1670°K. Determine (a) The amount of heat (in joules) required to melt the volume of metal in (b) The heat that , (c) The rate of heat generation required at the welding source to accomplish the weld this weld (filler metal plus base metal) must be generated at the heat source
A resistance spot-welding operation is performed on two pieces of 1.5 mm thick sheet steel using 12000 amps current for a duration of 0.20 second. The electrodes are 6 mm in diameter at the contacting surfaces. Resistance is assumed to be 0.0001 ohms and the resulting weld nugget is 6 mm in diameter and 2.5 mm thick. The unit melting energy for the metal is 12 Jmm³. What portion of heat generated was used to form the weld?
A GTAW operation is performed on low carbon steel, whose unit melting energy is 10.3 J/mm3. The welding voltage is 22 volts and the current is 135 amps. The heat transfer factor is 0.7 and the melting factor is 0.65. If filler metal wire of 3.5 mm diameter is added to the operation, the final weld bead is composed of 60% volume of filler and 40% volume base metal. If the travel speed in the operation is 5 mm/sec, determine (a) cross-sectional area of the weld bead, and (b) the feed rate (mm/sec) at which the filler wire must be supplied.
Q1-A shielded metal arc welding operation is performed on steel at E = 30 volts and I = 225 amps. The heat transfer efficiency fi= 0.85 and melting efficiency f₂=0.75. The unit melting energy for steel Um = 10.2 J/mm3. Solve for: (a) the rate of heat generation at the weld and (b) the volume rate of metal welded
Assume that two 1.5-mm thick steel sheets are being spot welded at a current of 4000 A and current-flow time is 0.3 s. Using electrodes 5 mm in diameter, estimate the amount of heat generated and the amount of heat required to melt the weld nugget. Use an effective resistance of 350 un. Take u= 9,7 Joule/mm Which one of the following are correct? O a. If the electrodes were 7 mm diameter, the amount of heat generated would decrease b. The amount of heat generated by the equipment is between 1600 to 1700 Joules c. The equipment has enough power to weld the steel sheets. d. The equipment does not have enough power to weld the steel sheets e. The amount of heat required is between 700 and 750 Joules
A shielded metal arc-welding operation is performed on low carbon steel (Tm=1760 K) plates at a voltage = 25 volts and a current = 200 amps. The heat transfer factor = 0.90, and the melting factor = 0.75. Find (a) rate of heat generation at the weld and (b) volume rate of metal welded