7th Edition

ISBN: 9780133128741

Author: Serope Kalpakjian, Steven Schmid

Publisher: Prentice Hall

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Chapter 30, Problem 6RQ

What keeps the weld bead on a steel surface from oxidizing (rusting) during welding?

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Chapter 30, Problem 5RQ

Chapter 30, Problem 7RQ

Chapter 30 Solutions

Manufacturing Engineering & Technology

Ch. 30 - Describe fusion as it relates to welding...Ch. 30 - Explain the features of neutralizing, reducing,...Ch. 30 - What is stick welding?Ch. 30 - Explain the basic principles of arc-welding...Ch. 30 - Why is shielded metal-arc welding a commonly...Ch. 30 - What keeps the weld bead on a steel surface...Ch. 30 - Describe the functions and characteristics of...Ch. 30 - What are the similarities and differences between...Ch. 30 - What properties are useful for a shielding gas?Ch. 30 - What are the advantages to thermit welding?

Ch. 30 - Explain where the energy is obtained in...Ch. 30 - Explain how cutting takes place when an...Ch. 30 - What is the purpose of flux? Why is it not needed...Ch. 30 - What is meant by weld quality? Discuss the...Ch. 30 - How is weldability defined?Ch. 30 - Why are welding electrodes generally coated?Ch. 30 - Describe the common types of discontinuities...Ch. 30 - Prob. 18RQ Ch. 30 - Explain why hydrogen welding can be used to...Ch. 30 - Prob. 20RQ Ch. 30 - Prob. 21QLP Ch. 30 - It has been noted that heat transfer in gas-metal...Ch. 30 - Explain why some joints may have to be...Ch. 30 - Describe the role of filler metals in welding.Ch. 30 - List the processes that can be performed with...Ch. 30 - What is the effect of the thermal conductivity of...Ch. 30 - Describe the differences between oxyfuel-gas...Ch. 30 - Could you use oxyfuel-gas cutting for a stack of...Ch. 30 - What are the advantages of electron-beam and...Ch. 30 - Describe the methods by which discontinuities...Ch. 30 - Explain the significance of the stiffness of the...Ch. 30 - Prob. 32QLP Ch. 30 - Which of the processes described in this chapter...Ch. 30 - Prob. 34QLP Ch. 30 - Prob. 35QLP Ch. 30 - Comment on the factors involved in electrode...Ch. 30 - Prob. 38QLP Ch. 30 - Prob. 39QLP Ch. 30 - Prob. 40QLP Ch. 30 - Prob. 41QLP Ch. 30 - What is weld spatter? What are its sources? How...Ch. 30 - Describe your observations concerning Fig. 30.20.Ch. 30 - Prob. 44QLP Ch. 30 - Plot the hardness in Fig. 30.20d as a function of...Ch. 30 - A welding operation will take place on carbon...Ch. 30 - In Fig. 30.26b, assume that most of the top...Ch. 30 - A welding operation takes place on an...Ch. 30 - An arc welding operation is taking place on carbon...Ch. 30 - Comment on workpiece size and shape limitations...Ch. 30 - Arc blow is a phenomenon where the magnetic...Ch. 30 - Review the types of welded joints shown in Fig....Ch. 30 - Comment on the design guidelines given in...Ch. 30 - Prob. 55SDP Ch. 30 - Prob. 56SDP Ch. 30 - Make a list of welding processes that are suitable...Ch. 30 - Prob. 58SDP Ch. 30 - Prob. 59SDP Ch. 30 - Review the poor and good joint designs shown...Ch. 30 - In building large ships, there is a need to weld...Ch. 30 - Prob. 62SDP Ch. 30 - Comment on whether there are common factors...Ch. 30 - Prob. 64SDP Ch. 30 - Lattice booms for cranes are constructed from...Ch. 30 - A common practice in repairing expensive broken...

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What keeps the weld bead on a steel surface from oxidizing (rusting) during welding?

Solution Summary: The author explains that welding has burned down the layer of chromium oxide, an element which prohibits stainless steel from getting rust. If bluing or any type of debris is kept behind by welding process,

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