Manufacturing Engineering & Technology
7th Edition
ISBN: 9780133128741
Author: Serope Kalpakjian, Steven Schmid
Publisher: Prentice Hall
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Chapter 30, Problem 38QLP
To determine
In Table 30.1, the column on the distortion of welded components is ordered from lowest distortion to highest. Explain why the degree of distortion varies among different welding processes.
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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. 18RQCh. 30 - Explain why hydrogen welding can be used to...Ch. 30 - Prob. 20RQCh. 30 - Prob. 21QLPCh. 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. 32QLPCh. 30 - Which of the processes described in this chapter...Ch. 30 - Prob. 34QLPCh. 30 - Prob. 35QLPCh. 30 - Comment on the factors involved in electrode...Ch. 30 - Prob. 38QLPCh. 30 - Prob. 39QLPCh. 30 - Prob. 40QLPCh. 30 - Prob. 41QLPCh. 30 - What is weld spatter? What are its sources? How...Ch. 30 - Describe your observations concerning Fig. 30.20.Ch. 30 - Prob. 44QLPCh. 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. 55SDPCh. 30 - Prob. 56SDPCh. 30 - Make a list of welding processes that are suitable...Ch. 30 - Prob. 58SDPCh. 30 - Prob. 59SDPCh. 30 - Review the poor and good joint designs shown...Ch. 30 - In building large ships, there is a need to weld...Ch. 30 - Prob. 62SDPCh. 30 - Comment on whether there are common factors...Ch. 30 - Prob. 64SDPCh. 30 - Lattice booms for cranes are constructed from...Ch. 30 - A common practice in repairing expensive broken...
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- Welding is a common method to join separate parts of metal together. Briefly describe the conditions that are required for materials used in Welding.arrow_forwardExplain why fusion welding with non-consumable electrodes is advantageous, compared to consumable electrodes? Give 2 reasons.arrow_forwardengineering materials and processes Discuss the welding process and List the tools used in welding process. Identify its application and discuss its use.arrow_forward
- A welding operation is time-studied during which an operator was pace-rated as 120%. The operator took, on an average, 8 minutes for producing the weld-joint. If a total of 10% allowances are allowed for this operation. What is the expected standard production rate of the weld-joint in units per 8 hour day?arrow_forward1. What do you understand by the term welded joint? How it differs from riveted joint? 2. Sketch and discuss the various types of welded joints used in pressure vessels. What are the consider- ations involved? 3. State the basic difference between manual welding, semi-automatic welding and automatic welding. 4. What are the assumptions made in the design of welded joint? 5. Explain joint preparation with particular reference to butt welding of plates by arc welding. 6. Discuss the standard location of elements of a welding symbol. 7. Explain the procedure for designing an axially loaded unsymmetrical welded section. 8. What is an eccentric loaded welded joint ? Discuss the procedure for designing such a joint. 9. Show that the normal stress in case of an annular fillet weld subjected to bending is given by 5.66 M O = Lsd2 where M= Bending moment; s = Weld size and d= Diameter of cylindrical element welded to flat %3D %3D surface.arrow_forwardCalculate the heat input of welded Truss by assuming the welding current is 180 amperages, its arc voltage is 23 volts, and 7cm/min. of welding travel speed usage.arrow_forward
- 2. A flexible, round, plain-opening pipe removes welding fumes. The pipe is 8 in. in diameter and is positioned so the pipe face is 8 in. from the welding operation. Assume the capture velocity produced is 200 ft/min at the point of welding. (a) What is the flow rate in the pipe? (b) Estimate the velocity at the face of the pipe.arrow_forwardWrite down the solid state welding methods in articles; write the principle, usage areas, advantages and disadvantages of "Friction Stir Welding", which is one of the solid state welding methods, compared to other welding methods.arrow_forwardExample 27.2. A 100 mm x 10 mm plate is to be 150 mm x 10 mm by the fillet welding on three sides. The size of the weld is 6 mm. Find out the necessary over lap of the plate, for full strength of the joint. Take allowable tensile stress in plate equal to 150 N/mm and allowable stress in weld as 110 N/mm. welded to another platearrow_forward
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