EBK MANUFACTURING ENGINEERING & TECHNOL
7th Edition
ISBN: 8220100793431
Author: KALPAKJIAN
Publisher: PEARSON
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Textbook Question
Chapter 31, Problem 16QLP
Make a list of processes in this chapter, ranking them according to (a) the pressure achieved, (b) the maximum temperature, and (c) suitability for bonding dissimilar materials.
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Chapter 31 Solutions
EBK MANUFACTURING ENGINEERING & TECHNOL
Ch. 31 - Explain what is meant by solid-state welding.Ch. 31 - What is cold welding? Why is it so called?Ch. 31 - What is (a) a ferrule, (b) filled gold, and (c) a...Ch. 31 - What are faying surfaces in solid-state welding...Ch. 31 - What is the basic principle of (a) ultrasonic...Ch. 31 - Explain how the heat is generated in the...Ch. 31 - Prob. 7RQCh. 31 - Describe the principle of resistance-welding...Ch. 31 - Prob. 9RQCh. 31 - What type of products are suitable for stud...
Ch. 31 - Prob. 11RQCh. 31 - Prob. 12RQCh. 31 - Prob. 13RQCh. 31 - Describe how high-frequency butt welding operates.Ch. 31 - What materials are typically used in...Ch. 31 - Make a list of processes in this chapter,...Ch. 31 - Prob. 17QLPCh. 31 - Explain the reasons why the processes described in...Ch. 31 - Explain the similarities and differences between...Ch. 31 - Describe your observations concerning Figs....Ch. 31 - Would you be concerned about the size of weld...Ch. 31 - What advantages does friction welding have over...Ch. 31 - Prob. 23QLPCh. 31 - Prob. 24QLPCh. 31 - Discuss the factors that influence the strength of...Ch. 31 - What are the sources of heat for the...Ch. 31 - Can the roll-bonding process be applied to a...Ch. 31 - Prob. 28QLPCh. 31 - List and explain the factors involved in the...Ch. 31 - Give some of the reasons that spot welding is...Ch. 31 - Prob. 31QLPCh. 31 - Prob. 32QLPCh. 31 - Prob. 33QLPCh. 31 - Prob. 34QLPCh. 31 - Prob. 35QLPCh. 31 - Prob. 36QLPCh. 31 - Prob. 37QLPCh. 31 - Prob. 38QLPCh. 31 - Which processes in this chapter are not affected...Ch. 31 - Consider the situation where two round...Ch. 31 - Prob. 41QLPCh. 31 - The energy required in ultrasonic welding is found...Ch. 31 - Prob. 43QTPCh. 31 - Prob. 44QTPCh. 31 - Prob. 45QTPCh. 31 - Prob. 46SDPCh. 31 - Explain how you would fabricate the structures...Ch. 31 - Prob. 48SDPCh. 31 - Prob. 49SDPCh. 31 - Prob. 50SDPCh. 31 - Prob. 51SDPCh. 31 - Prob. 52SDPCh. 31 - Prob. 53SDPCh. 31 - Describe the methods you would use for removing...Ch. 31 - Prob. 55SDPCh. 31 - Prob. 56SDPCh. 31 - Inspect the sheet-metal body of an automobile,...Ch. 31 - Prob. 59SDPCh. 31 - Prob. 60SDPCh. 31 - Sketch the microstructure you would expect if a...
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- What do you understand by the term welded joint? How it differs from riveted joint?arrow_forward(b) Two flat aluminum sheets (each 1 mm thick) are being spot welded by use of a current of 5000A and a current flow time of 0.2 s. The electrodes are 3 mm in diameter. Assume that the resistance is 200µ2. Given the density of aluminum is 2.70 g/cm³ and the latent heat of fusion (hf) for aluminum is 321 J/g.arrow_forward[Please Write Clean and Provide Complete Explanation] One end of a 2 m long steel rod (d = 3 cm) is rigidly attached to a wall so that the rod is perpendicular to the wall. The other end of the rod is welded to a second rod, which is 1 m long (d = 1.0 cm). The second rod is parallel to the wall and the floor. A vertical force of 50 N is applied to the end of the second rod. For both rods, the modulus of elasticity is 210 × 109 Pa and the shear modulus is 79 × 10 9 Pa. There is an infinitesimally small cubic element at the top surface of the 3 cm diameter rod immediately adjacent to the wall, that is, at (0, 1.5, 0). What is most nearly the maximum normal stress due to the bending moment?arrow_forward
- a) Briefly Explain the similarities and differences between electron beam and laser beam welding with typical application for each process. b) Suppose, you are required to retrofit the 3D printer (SLS machine) which needs the replacement of the laser unit. You noticed that your old laser beam welding machine (LBWM) is sitting idle in your lab and you want to salvage its major components. As a Lab Engineer, you are required to submit a proposal for retrofitting your SLS machine as well as salvaging the valuable components of LBWM. What will be your proposal? State briefly.arrow_forwardWhat does liquid-solid phase bonding mean and in which cases is it preferred over welding? What does capillarity mean in this process?arrow_forwardTwo 1.2 mm thick flat copper sheets are being spot welded using a current of 6000A and a current flow time of 0.18 s. The electrodes are 5 mm in diameter. Estimate the generated in the weld zone. Take effective resistance as 150 ohm. also calculate temperature rise assuming that the heat generated is confined to the volume ogf materials directly between two electrodes and temperature is uniformly distributed.arrow_forward
- An arc welding operation on nickel performs a groove weld, whose cross-sectional area = 20.0 mm2. The melting point of nickel Tm = 1725° Travel velocity = 4.0 mm/sec. Heat transfer factor = 0.82, and melting factor = 0.70. Determine the rate of heat generation required at the welding source to accomplish this weld.arrow_forwardResistance spot welding is performed on two plates of 1.5 mm thickness with 6 mm diameter electrode, using 15000 A current for a time duration of 0.25 seconds. Assuming the interface resistance to be 0.00010, the heat generated ( W-sec) to form the weld isarrow_forwardTwo 1.2 mm thick sheets of steel are joined by double-sided spot welding using a current of 6000A and current flow time of t = 0.15 sec. The electrodes are 3 mm in diameter and the weld spot thickness is approximately one third of the total thickness of the metal sheets. Assuming that the effective resistance in this operation is 200 micro resistance, estimate the heat generated and its distribution in the weld zone. (Take density of steel = 8600 Kg/m3 and its latent heat capacity, L =1400 J/g)arrow_forward
- Determine the effects of two-dimensional and three-dimensional loading on the dimensions of a given material with regard to a simple joining block.arrow_forwarda) A bicycle frame is being designed to carry a pedal force of 800N. Assuming axial loading only, which material will produce the lightest frame out of the two in the table below? Assume a design factor of 1.2 b) If the bicycle frame is being welded together and an internal flaw size of 30mm results, which material will produce the lighter section? (Apply a design factor of 1.2 If the bicycle frame needs to last a minimum 3 x 105 cycles, with an average stress of 150MPa and an alternating stress of 200MPa, use the Soderberg criterion to pick a suitable material from the two alloys listed above. Show all your working.arrow_forwardIdentify the conditions under which a brazed joint is likely to be “stronger” than the brazing material by itself. Describe the trends in joint fracture strength as it becomes wider/narrower or thinner/thicker.arrow_forward
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