Welding: Principles and Applications (MindTap Course List)
8th Edition
ISBN: 9781305494695
Author: Larry Jeffus
Publisher: Cengage Learning
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Textbook Question
Chapter 17, Problem 21R
What must be done with the weld craters when back stepping a weld? Why?
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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 17 Solutions
Welding: Principles and Applications (MindTap Course List)
Ch. 17 - What effect does torch angle have on the shielding...Ch. 17 - Why must the end of the filler rod be kept in the...Ch. 17 - What can cause tungsten contamination?Ch. 17 - What determines the correct current setting for a...Ch. 17 - What is the lowest acceptable amperage setting for...Ch. 17 - List the factors that affect the gas flow setting...Ch. 17 - When should the minimum gas flow rates be...Ch. 17 - What is the minimum gas flow rate for a nozzle...Ch. 17 - What is the maximum gas flow rate for a nozzle...Ch. 17 - Which incorrect welding parameters does stainless...
Ch. 17 - Using Table 17-4, determine the approximate...Ch. 17 - Using Table 17-3, Table 17-5, and Table 17-6, list...Ch. 17 - Why is it possible to control a large aluminum...Ch. 17 - What may happen to the end of the aluminum welding...Ch. 17 - What should be done if someone comes in contact...Ch. 17 - Using Table 17-7, determine the suggested setting...Ch. 17 - What can be done to limit oxide formation on...Ch. 17 - How should the filler metal be added to the molten...Ch. 17 - How can the rod be freed if it sticks to the...Ch. 17 - How is an outside corner joint assembled?Ch. 17 - What must be done with the weld craters when back...Ch. 17 - What can prevent both sides of a stainless steel...Ch. 17 - How is the filler metal added for a 3F weld?Ch. 17 - What can cause undercutting on a 3F tee joint?Ch. 17 - What helps hold the weld in place on a 2F lap...Ch. 17 - What helps hold the weld in place on a 4G weld?
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