EBK MANUFACTURING ENGINEERING & TECHNOL
7th Edition
ISBN: 8220100793431
Author: KALPAKJIAN
Publisher: PEARSON
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Textbook Question
Chapter 31, Problem 19QLP
Explain the similarities and differences between the joining processes described in this chapter and those in Chapter 30.
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Explain the mechanism of heat generation in Resistance spot welding. Explain the Force (current) vs time diagram.
A resistance welding is performed to join two 2-mm thick stainless steel sheets with ten 6-mm diameter spot welds produced concurrently. The resulted weld nugget each has average 3 mm in thickness. Calculate the required welding current and energy consumption for the welding if ten seconds are needed for the whole welding operation. Given that the applied voltage is 10 V. Provide TWO important assumptions in your calculation.
List Down Three (3) Categories of Joining Processes and Compare Them.
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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- (b) A resistance welding is performed to join two 2-mm thick stainless steel sheets with ten 6-mm diameter spot welds produced concurrently. The resulted weld nugget each has average 3 mm in thickness. Calculate the required welding current and energy consumption for the welding if ten seconds are needed for the whole welding operation. Given that the applied voltage is 10 V. Provide TWO important assumptions in your calculation.arrow_forwardPlease explain the significance of residual stress in welded structures and the ways to deal with this problem.arrow_forward2) Explain how a cylindrical joint can be practically realised?arrow_forward
- What do you understand by the term welded joint? How it differs from riveted joint?arrow_forwardFor a cross section of a typical fusion-welded joint: (a) list all types of different zones in the joint and (b) Explain the different types of grain structure that formed during welding of metal.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
- Provide a summary of underwater welding, including comparisons between its two types (wet and dry).arrow_forwardGive information about the reasons why the weld is preferred over other fastening methods.arrow_forwardExamine various household products and describe how their components are joined and assembled. Explain why those particular processes were used and not others! Explain i full detal,arrow_forward
- Explain why fusion welding with non-consumable electrodes is advantageous, compared to consumable electrodes? Give 2 reasons.arrow_forwardExplain how heat treatment is applied in welding processes and what its importance is.arrow_forwardExplain the residual stress in weldin operations. What kind of geometries or machine elements are likely to suffer from residual stress? Give your opinions on avoiding this problem ?arrow_forward
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Metal Joining Process-Welding, Brazing and Soldering; Author: Toc H Kochi;https://www.youtube.com/watch?v=PPT5_fDSzGY;License: Standard YouTube License, CC-BY