Welding: Principles and Applications (MindTap Course List)
8th Edition
ISBN: 9781305494695
Author: Larry Jeffus
Publisher: Cengage Learning
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Textbook Question
Chapter 20, Problem 1R
What are two ways math is most commonly used in the welding shop?
Expert Solution & Answer
To determine
To Explain: Two ways of math which is used in welding shop.
Explanation of Solution
Mathematics is important in all the areas for calculating the parameters of the operations. In a welding shop, the operator needs to calculate the angles and position of the torch through mathematics.
There are two main ways in which math is most commonly used in welding shop. They are:
- Arithmetic operators: addition, subtraction, multiplication and division.
- Geometrical and trigonometry: Dimensions of the weldments, angle of electrode, point of contact and gap between electrode and work piece.
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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
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0
0
T
H
Sy = 39 ksi
Se = 36 ksi
Hot-rolled 1020 steel
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50 60 70 80 90 100 110 120 130 140 150 160
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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
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0.2
0.3
0.4
0.5
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60
Su = 66 ksi
Stress σ (ksi)
S₁ = 39 ksi
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Hot-rolled 1020 steel
20
0
10 20 30 40
50 60 70 80 90 100 110 120 130 140 150 160
Strain € (%)
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Chapter 20 Solutions
Welding: Principles and Applications (MindTap Course List)
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