EBK 3I-EBK: WELDING PRINCIPLES & APPLIC
8th Edition
ISBN: 9780176919764
Author: Jeffus
Publisher: VST
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Chapter 18, Problem 22R
What is the maximum width that a weave pattern should be?
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A tensile specimen made of hot-rolled AISI 1020 steel is loaded to point corresponding to a strain of 43%.
60
Su = 66 ksi
Stress σ (ksi)
40 B
20
0
0
0
T
H
Sy = 39 ksi
Se = 36 ksi
Hot-rolled 1020 steel
F
10 20 30 40
50 60 70 80 90 100 110 120 130 140 150 160
Strain € (%)
T
1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5 2.6
Area ratio R
0.1
0.2
0.3
0.4
0.5
Area reduction A,
What value of strain is applicable to this location?
0.6
A tensile specimen made of hot-rolled AISI 1020 steel is loaded to point corresponding to a strain of 40%.
60
Su = 66 ksi
Stress σ (ksi)
S₁ = 39 ksi
40
Se = 36 ksi
Hot-rolled 1020 steel
20
0
10 20 30 40
50 60 70 80 90 100 110 120 130 140 150 160
Strain € (%)
0
1.1 1.2 1.3 1.4 1.5
1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5 2.6
Area ratio R
0.1
0.2
0.3
0.4
0.5
Area reduction A,
What value of area ratio is applicable to this location?
0.6
A tensile specimen made of hot-rolled AISI 1020 steel is loaded to point corresponding to a strain of 43%.
60
Su = 66 ksi
Stress σ (ksi)
20
Sy = 39 ksi
Se = 36 ksi
Hot-rolled 1020 steel
F
0
10 20 30
40 50 60
70 80 90 100 110 120 130 140 150 160
Strain € (%)
0
1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5 2.6
Area ratio R
0.1
0.2
0.3
0.4
0.5
Area reduction A,
What value of area reduction is applicable to this location?
0.6
Chapter 18 Solutions
EBK 3I-EBK: WELDING PRINCIPLES & APPLIC
Ch. 18 - What types of industries require GTAW-quality pipe...Ch. 18 - What are the grooves most often used for welding...Ch. 18 - What condition must the prepared edges of a pipe...Ch. 18 - How is the depth of root penetration measured?Ch. 18 - What problem can incomplete fusion cause?Ch. 18 - What are the common causes of a concave root...Ch. 18 - What problems can excessive root reinforcement...Ch. 18 - Prob. 8RCh. 18 - What gases are used as backing gases?Ch. 18 - How long would it take to purge a 15-ft section of...
Ch. 18 - How long would it take to purge a 10-mm section of...Ch. 18 - How can filler metal be added to make a root pass?Ch. 18 - Prob. 13RCh. 18 - How is the tack weld ended so that it will not...Ch. 18 - What is the 1G pipe position?Ch. 18 - After the weld is set up and ready to begin, how...Ch. 18 - What type of weld can be made using the nozzle...Ch. 18 - What two problems can be corrected by a hot pass?Ch. 18 - Why must you brace yourself when making a weld?Ch. 18 - What can happen to the weld pool if the torch...Ch. 18 - What technique should be used when stopping a...Ch. 18 - What is the maximum width that a weave pattern...Ch. 18 - Why should the filler pass penetration be limited...Ch. 18 - How much filler metal should be added to a filler...Ch. 18 - What is the 5G pipe position?Ch. 18 - How should the torch be held to allow good...Ch. 18 - Why are stringer beads in the 6G position kept...
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- A tensile specimen made of hot-rolled AISI 1020 steel is loaded to point corresponding to a strain of 40%. 60 Su = 66 ksi Stress σ (ksi) 40 20 Sy= = 39 ksi Se = 36 ksi Hot-rolled 1020 steel F | G | H 0 10 20 30 40 50 60 0 70 80 90 100 110 120 130 140 150 160 Strain € (%) ☐ T 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5 2.6 Area ratio R 0.1 0.2 0.3 0.4 0.5 Area reduction A, What value of Sy is applicable to this location? 0.6arrow_forwardA vertical .2m by .2m square plate is exposed to saturated water vapor at atmospheric pressure. If the surface temperature is 80 degrees C and the flow is laminar, estimate the loal heat transfer coefficents at the middles and at the bottom of the plate.arrow_forwardA transformer that is 10 cm long, 6.2 cm wide, and 5 cm high is to be cooled by attaching a 10 cm by 6.2 cm wide polished aluminum heat sink(emissivity=.03) to its top surface. The heat sink has seven fins, which are 5 mm high, 2mm thick, and 10 cm long. A fan blows air at 25 degrees C parallel to the passages between the fins. The heat sink is to dissipate 12W of heat, and the base temp of the ehat sink is not to exceed 60 degrees C. Assuming the fins and the base plate to be nearly isothermal and the radiation heat transfer to be negligible, determine the minimum free-stream velocity the fan needs to supply to avoid overheating. Assume the flow is laminar over the entire finned surface of the transformer.arrow_forward
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