DeGarmo's Materials and Processes in Manufacturing
12th Edition
ISBN: 9781118987674
Author: J. T. Black, Ronald A. Kohser
Publisher: WILEY
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Textbook Question
Chapter 35, Problem 29RQ
What are some of the characteristics and consequences of welding with processes that have low rates of heat input?
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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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- Describe the three applications of each Tee and Edge joint in welding?arrow_forwardWhen 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_forwardA gas metal arc welding test is performed to determine the value of melting factor f₂ for a certain metal and operation. The welding voltage = 25 volts, current = 125 amps, and heat transfer factor is assumed to be = 0.90, a typical value for GMAW. The rate at which the filler metal is added to the weld is 0.50 in³ per minute, and measurements indicate that the final weld bead consists of 57% filler metal and 43% base metal. The unit melting energy for the metal is known to be 75 Btu/in³. (a) Find the melting factor. (b) What is the travel speed if the cross-sectional area of the weld bead = 0.05 in²?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_forwardExplain the mechanism of heat generation in Resistance spot welding. Explain the Force (current) vs time diagram.arrow_forwardSelect TWO (2) types of arc welding processes that are suitable for welding hot passes quickly and acceptable with Low Carbon Steel type of material.arrow_forward
- How do tools affect the accuracy of the finished workpiece in welding works? Is it possible to have an accurate workpiece without welding tools or instruments?arrow_forwardThe primary purpose of heat application in deformation based joining processes is *arrow_forwardIt is desired to determine the cost of the submerged arc welding operation in the preceding problem, including electric power cost but excluding work material costs. Power during arc-on time = 9,000 W, and cost of electricity = $0.15/kWH. The labor cost rate = $33.00/hr and the SAW equipment cost = $20.00/hr (including applicable overheads). The cost of each spool of electrode wire = $50.00. The cost of granular flux used in each cycle = $2.00. What is the welding cost of each completed tube?arrow_forward
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