Manufacturing Engineering & Technology
7th Edition
ISBN: 9780133128741
Author: Serope Kalpakjian, Steven Schmid
Publisher: Prentice Hall
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Textbook Question
Chapter 31, Problem 29QLP
List and explain the factors involved in the strength of weld beads.
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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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- An arc welding is performed to join two metal pieces. After the welding process, the product is subjected to fatigue test. Discuss which part of the weld joint will have high potential to experience fatigue failure.arrow_forwardExplain the mechanism of heat generation in Resistance spot welding. Explain the Force (current) vs time diagram.arrow_forwardThrough illustrations explain the process of TIG Welding.arrow_forward
- It has been reported that gas–tungsten arc welds of aluminum made in the overhead position (assumed lap weld joint) tend to have a significantly higher porosity level than those made in the flat position: Explain why Sketch the general view of the overhead position Indicate where the (most probable) location of the porosityarrow_forwardA circular electrode of 190 mm diameter is used for carrying out seam welding at 5 welds per cm on a mild steel tube of thickness 1.5 mm. The duration of the welding cycle is given as On - 4 cycles, Off- 3 cycles. The power supply is at 50 Hz. Calculate work speed, welds per minutę, RPM, and energy requirement assuming effective resistance between an electrode as 100u ohm.arrow_forwardWhat are some of the problems that oxygen can cause in welds?arrow_forward
- (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 00 TWO important assumptions in your calculation.arrow_forwardCalculate the heat input during the arc welding process, if the voltage is 33 volts, current is 115 amperes, the length of the weld is 88mm and the time to complete the weld 34 secs.arrow_forwardProvide a reasonable explanation for the following observation: a welded component made of Al 6061-T6 alloy is routinely found to deform plastically first in the region adjacent to the weld joint despite the fact that the stress is nominally the same everywhere in the component. What solution would you propose to fix this problem, assuming that the weld joint cannot be eliminated from the design?arrow_forward
- Two 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_forwardThe current required for 5mm thick steel plates to be spot welded is 10,000amps. Then the current required for 1.5mm thick aluminium plates to spot weld, will be A. (Melting point of steel = 1400°C and melting point of Al = 660°C)arrow_forwardPlease explain the significance of residual stress in welded structures and the ways to deal with this problem.arrow_forward
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