Welding: Principles and Applications (MindTap Course List)
8th Edition
ISBN: 9781305494695
Author: Larry Jeffus
Publisher: Cengage Learning
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Textbook Question
Chapter 12, Problem 16R
Why is it more difficult to use lime-based fluxed electrodes on out-of-position welds?
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Welding: Principles and Applications (MindTap Course List)
Ch. 12 - List some factors that have led to the increased...Ch. 12 - How is FCAW similar to GMAW?Ch. 12 - What does the FCA flux provide to the weld?Ch. 12 - What are the major atmospheric contaminations of...Ch. 12 - How does slag help an FCA weld?Ch. 12 - How can FCA welding guns be cooled?Ch. 12 - Excessive drive roller pressure causes what...Ch. 12 - List the advantages that FCA welding offers the...Ch. 12 - Describe the two methods of manufacturing FCA...Ch. 12 - Why are the large diameter electrodes not used for...
Ch. 12 - How do deoxidizers remove oxygen from the weld...Ch. 12 - What do fluxing agents do for a weld?Ch. 12 - Why are alloying elements added to the flux?Ch. 12 - How does the flux form a shielding gas to protect...Ch. 12 - What are the main limitations of the rutile...Ch. 12 - Why is it more difficult to use lime-based fluxed...Ch. 12 - What benefit does adding an externally supplied...Ch. 12 - How do excessive amounts of manganese affect a...Ch. 12 - Why are elements added that cause ferrite to form...Ch. 12 - Why must a flux form a less dense slag?Ch. 12 - Referring to Table 12-5, what is the AWS...Ch. 12 - Describe the meaning of each part of the following...Ch. 12 - What does the number 316 in E316T-1 mean?Ch. 12 - What is the advantage of using an argon- CO2 mixed...Ch. 12 - Why are some slags called refractory?Ch. 12 - What can happen to slag that solidifies on the...Ch. 12 - How is the electrode extension measured?Ch. 12 - What can cause porosity in an FCA weld?Ch. 12 - What happens to water in the welding arc?Ch. 12 - What is the thin dark gray or black layer on new...Ch. 12 - Why is uniformly scattered porosity hard to detect...Ch. 12 - What cautions must be taken when chemically...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- What benefit does adding an externally supplied shielding gas have on some rutile-based electrodes?arrow_forwardWhy would it be a good idea to increase the welding travel speed as a filler weld is being ended?arrow_forwardWhy are the large diameter electrodes not used for all-position welding?arrow_forward
- Why is it important to make small welds more accurately than large ones?arrow_forwardWhat alloying element used in FCA welding electrodes causes the electrode to produce centerline cracks in the weld if it is used for multipass welds?arrow_forwardWhich SMA welding electrodes are commonly used to weld on sheet metal fabrications?arrow_forward
- What are the advantages of making vertical down welds?arrow_forwardIn short-circuiting transfer, what type of current alloys the liquid metal at the electrode tip to be transferred by direct contact with the molten weld pool?arrow_forwardWhat effect does shortening the electrode extension have on weld penetration?arrow_forward
- If the key hole becomes smaller and smaller, what can be done to increase the molten weld pool size and maintain the key hole?arrow_forwardHow do most manufacturers classify or group hard-facing or wear-resistant electrodes?arrow_forwardWhy is uniformly scattered porosity hard to detect in a weld?arrow_forward
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