Welding: Principles and Applications (MindTap Course List)
8th Edition
ISBN: 9781305494695
Author: Larry Jeffus
Publisher: Cengage Learning
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Textbook Question
Chapter 4, Problem 21R
Describe an ideal tack weld.
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1. The maximum and minimum stresses as well as the shear stress seen subjected the piece in plane A-A. Assume it is a cylinder with a diameter of 12.7mm 2. Draw the Mohr circle for the stress state using software. 3. Selection of the material for the prosthesis, which must be analyzed from the point of safety and cost view.
Chapter 4 Solutions
Welding: Principles and Applications (MindTap Course List)
Ch. 4 - Describe two methods of striking an arc with an...Ch. 4 - Why is it important to strike the arc only in the...Ch. 4 - What problems may result by using an electrode at...Ch. 4 - What problems may result by using an electrode at...Ch. 4 - According to Table 4-1, what would the amperage...Ch. 4 - What makes some spatter “hard?”Ch. 4 - Why should you never change the current setting...Ch. 4 - What factors should be considered when selecting...Ch. 4 - What can a welder do to control overheating of the...Ch. 4 - What problems can result from too long or too...
Ch. 4 - What arc problems can occur in deep or narrow weld...Ch. 4 - Describe the difference between using a leading...Ch. 4 - Can all electrodes be used with a leading angle?...Ch. 4 - What characteristics of the weld bead do the...Ch. 4 - What are some of the applications for the circular...Ch. 4 - Using a pencil and paper, draw two complete lines...Ch. 4 - Why is it important to find a good welding...Ch. 4 - Which electrodes would be grouped in the following...Ch. 4 - Give one advantage of using electrodes with...Ch. 4 - What are stringer beads?Ch. 4 - Describe an ideal tack weld.Ch. 4 - What effect does the root opening or root gap have...Ch. 4 - What can happen if the fillet weld on a lap joint...Ch. 4 - Which plate heats up faster on a tee joint? Why?Ch. 4 - Can a tee weld be strong if the welds on both...
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- Question 2 (40 Points) Consider the following double pendulum-like system with links ₁ and 12. The angles 0 and & could have angular velocities ėêk and êk, respectively, where ②k is a unit vector that points out of the page and is perpendicular to x and y. They could also have angular accelerations Ök and êk. The angle is defined relative to the angle 0. The link 12 is a spring and can extend or compress at a rate of 12. It can also have a rate of extension or compression Ï2. li y êr1 êe 12 χ 3 еф er2 ده لج 1) Express the velocity of the mass in terms of the unit vectors ê0, êr1, êø, and êr2, and any extension/contraction of the links (e.g.,. i; and Ï¿) (12 Points) 2) Express the acceleration of the mass in terms of the unit vectors ê¤, ê×1, êp, and êÃ2, and any extension/contraction of the links (e.g.,. İ; and Ï¿) (12 Points) 3) Express the velocity of the mass in terms of unit vectors î and ĵ that point in the x and y directions, respectively. Also include the appropriate,…arrow_forwardprovide step by step solutions for angles teta 3 and teta 4 by the vector loopmethod. Show work in: vector loop, vector equations, solution procedure.arrow_forward(Manometer) A tank is constructed of a series of cylinders having diameters of 0.35, 0.30, and 0.20 m as shown in the figure below. The tank contains oil, water, and glycerin and a mercury manometer is attached to the bottom as illustrated. Calculate the manometer reading, h. 0.11 m + SAE 30 Oil 0.13 m + Water 0.10 m Glycerin + 0.10 m Mercury h = marrow_forward
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