Manufacturing Engineering & Technology
7th Edition
ISBN: 9780133128741
Author: Serope Kalpakjian, Steven Schmid
Publisher: Prentice Hall
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Chapter 31, Problem 41QLP
To determine
Is there any advantage in preheating the workpieces infriction welding? Explain
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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.
Chapter 31 Solutions
Manufacturing Engineering & Technology
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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- Explain the mechanism of heat generation in Resistance spot welding. Explain the Force (current) vs time diagram.arrow_forwardWhat do you understand by the term riveted joint? Explain the necessity of such a joint.arrow_forwardDuring arc welding, the heat input per unit length reduces, with increase ofarrow_forward
- Explain 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_forwardWhat do you understand by the term welded joint? How it differs from riveted joint?arrow_forwardDiscuss in details different type of resistance welding with the help of best diagramarrow_forward
- what are the assumption made in the design of welded jointsarrow_forwardList some factors that have led to the increased use of FCA welding.arrow_forwardCalculate the heat input of welded Truss if the welding current is 215 amperages, its arc voltage is 21 volts, and 15cm/min. of welding travel speed usage.arrow_forward
- Calculate the maximum welding current for continuous welding (Im) when the allowable duty cycle is 100%, rated output is 250A, and rated duty cycle is 60%.arrow_forwardCompare the differences between brazing and oxy fuel gas welding Propose any two welding defects that can be prevented by modifying the joint design and justify the importance of redesigning the jointarrow_forwardWhat effect does the end shape of the tungsten have on its own welding performance? Note: answer the question briefly but informative.arrow_forward
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