DeGarmo's Materials and Processes in Manufacturing
12th Edition
ISBN: 9781118987674
Author: J. T. Black, Ronald A. Kohser
Publisher: WILEY
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Chapter 35, Problem 39RQ
In what ways might welding create geometric notches in a welded structure?
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Chapter 35 Solutions
DeGarmo's Materials and Processes in Manufacturing
Ch. 35 - What types of design features favor manufacture as...Ch. 35 - What types of manufacturing processes fall under...Ch. 35 - Define welding.Ch. 35 - What conditions are required to produce an ideal...Ch. 35 - What are some of the ways in which welding...Ch. 35 - What are some possible problems associated with...Ch. 35 - What are the three primary aspects required to...Ch. 35 - How are welding processes identified by the...Ch. 35 - What is thermal cutting?Ch. 35 - What are some of the common types of weld defects?
Ch. 35 - What are the four basic types of fusion welds?Ch. 35 - What are some of the common edge configurations...Ch. 35 - What is the role of an insert in welding?Ch. 35 - What types of weld joints commonly employ fillet...Ch. 35 - What are the five basic joint tvpes for fusion...Ch. 35 - What are some of the factors that influence the...Ch. 35 - Why is it important to consider welded products as...Ch. 35 - How does the fracture resistance and temperature...Ch. 35 - How might excessive rigidity actually be a...Ch. 35 - What is autogenous welding?Ch. 35 - In what way is the weld-pool segment of a fusion...Ch. 35 - Why is it possible for the fusion zone to have a...Ch. 35 - Why is it not uncommon for the selected filler...Ch. 35 - What are some of the defects or problems that can...Ch. 35 - Why can the material properties vary widely within...Ch. 35 - What are some of the structure and property...Ch. 35 - Why do most welding failures occur in the...Ch. 35 - Discuss the various regions within the...Ch. 35 - What are some of the characteristics and...Ch. 35 - What process features can increase the size of the...Ch. 35 - What are some of the difficulties or limitations...Ch. 35 - What is the purpose of pre- and postheating in...Ch. 35 - What heat-related metallurgical effects can...Ch. 35 - What causes weld-induced residual stresses?Ch. 35 - What is the cause of reaction-type residual...Ch. 35 - How are reaction stresses affected by the distance...Ch. 35 - What are some of the techniques that can reduce...Ch. 35 - How can the surfaces of weldments be put into...Ch. 35 - In what ways might welding create geometric...Ch. 35 - 40. Why might a welded structure warp if the...Ch. 35 - Why might a stress relief heat treatment be...Ch. 35 - What are some of the techniques that can be...Ch. 35 - Why are the terms weldability and joinability...Ch. 35 - Prob. 1PCh. 35 - Two pieces of AISI 1025 steel are being...Ch. 35 - Figure 35.A schematically depicts the design of a...Ch. 35 - Investigate and summarize some of the important...Ch. 35 - What do you foresee as the major difficulties when...
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- When steel is joined using arc welding, only the liquid fusion zone must be protected by a gas or flux. However, when titanium is welded, both the front and back sides of the welded metal must be protected. Why must these extra pre-cautions be taken when joining titanium?arrow_forwardQUESTION 1 In an arc welding operation, a groove weld has a cross-sectional area=0.055 in² and is 24 in long. (Round your final answers to 1 decimal place) (a) What quantity of heat (in Btu) is required to accomplish the weld, if the metal to be welded is aluminum? Btu (b) How much heat must be generated at the welding source, if the heat transfer factor = 90% and the melting factor = 60%? H= Btuarrow_forward(a) With the aid a diagram, describe the principle of spot-welding process.arrow_forward
- 8 mm thick plates of S275 steel will be welded by SMAW, SAW, GTAW, GMAW and PAW processes. Evaluate weld groove preparation, welding parameters, welding consumables (electrode, shielding gas etc. ) heat input range, process advantages and economy for each welding process.arrow_forwardWhat term describes the fusion or growing together of the grain structure of the materials being welded?arrow_forwardWhat factors other than carbon affect a steel's ability to be welded?arrow_forward
- A shielded metal arc-welding operation is performed on low carbon steel (Tm=1760 K) plates at a voltage = 25 volts and a current = 200 amps. The heat transfer factor = 0.90, and the melting factor = 0.75. Find (a) rate of heat generation at the weld and (b) volume rate of metal weldedarrow_forwardDiscuss the arc welding quality and type of defects involved? What are the inspection and testing methods available to check the quality of the weld joint?arrow_forward3) Improper cleaning of faying surfaces during fusion welding of carbon steels will primarily lead to Wider heat affected zone O Higher residual stresses Entrapment of gases and formation of inclusions O Higher fracture toughness of weld jointarrow_forward
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