Manufacturing Engineering & Technology
7th Edition
ISBN: 9780133128741
Author: Serope Kalpakjian, Steven Schmid
Publisher: Prentice Hall
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Chapter 30, Problem 41QLP
To determine
Must the filler metal be made of the same compositionas the base metal that is to be welded? Explain.
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Enumerate the types of joint in welding.
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Please give me some Welded connections sample problems and solutions as a review.
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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- 1. 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_forwardPlease give me another Welded connections sample problems and solutions as a review.arrow_forward2) Which of the following is NOT true about friction stir welding? O It is a solid state process Fine grained structures can be obtained O It eliminates friction welding problems O It alters the chemical composition of the workpiecearrow_forward
- 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_forwardQuestion No. 18. How will you describe arrow A shown in the diagram in welding Drone Bead Overlap Flux Duu Ouestion Question »arrow_forwardA 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_forward
- 5) Which one of the following options is true about friction stir welding? Fine microstructure is produced. Good dimensional stability and repeatability is obtained. |Absence of cracking in welds. OShielding gas is used.arrow_forwardList the five joint types used in welding.arrow_forwardWhy is cost a consideration in joint design?arrow_forward
- What protects the molten weld metal from atmospheric contamination in GTAW welding?arrow_forwardWhat is the purpose of preheating metal before it is welded?arrow_forwardAssume that two 1.5-mm thick steel sheets are being spot welded at a current of 4000 A and current-flow time is 0.3 s. Using electrodes 5 mm in diameter, estimate the amount of heat generated and the amount of heat required to melt the weld nugget. Use an effective resistance of 350 un. Take u= 9,7 Joule/mm Which one of the following are correct? O a. If the electrodes were 7 mm diameter, the amount of heat generated would decrease b. The amount of heat generated by the equipment is between 1600 to 1700 Joules c. The equipment has enough power to weld the steel sheets. d. The equipment does not have enough power to weld the steel sheets e. The amount of heat required is between 700 and 750 Joulesarrow_forward
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