critical thinking\n26. compare smaw to fcaw - s when welding in the field. identify at least one advantage…

critical thinking\n26. compare smaw to fcaw - s when welding in the field. identify at least one advantage and one disadvantage of each process.\nanswer:\n27. think of an industry in your area that uses welding, such as building, mining, equipment fabrication, pipeline, oil and gas, energy, agriculture, and automotive. which process, gmaw, fcaw - g, or fcaw - s, do you think is most widely used in that industry? why?\nanswer:\nexperiment\n28. judge the amount of smoke produced by gmaw, fcaw - g, and fcaw - s. have one person weld with gmaw and observe the amount of smoke produced. repeat having the same person weld fcaw - g and then fcaw - s.

critical thinking\n26. compare smaw to fcaw - s when welding in the field. identify at least one advantage and one disadvantage of each process.\nanswer:\n27. think of an industry in your area that uses welding, such as building, mining, equipment fabrication, pipeline, oil and gas, energy, agriculture, and automotive. which process, gmaw, fcaw - g, or fcaw - s, do you think is most widely used in that industry? why?\nanswer:\nexperiment\n28. judge the amount of smoke produced by gmaw, fcaw - g, and fcaw - s. have one person weld with gmaw and observe the amount of smoke produced. repeat having the same person weld fcaw - g and then fcaw - s.

Answer

Brief Explanations:

  1. SMAW (Shielded Metal Arc Welding) is portable and can be used in various weather conditions in the field, but has slower deposition rates. FCAW - S (Flux - Cored Arc Welding - Self - Shielded) has high deposition rates but may produce more spatter and fumes.
  2. In the construction industry, FCAW - S might be widely used as it can be used outdoors in various weather and has relatively high deposition rates for structural welding. In the automotive industry, GMAW (Gas Metal Arc Welding) is often used due to its precision and ability to produce high - quality, aesthetically pleasing welds for thin - gauge metals.
  3. Generally, FCAW - G (Flux - Cored Arc Welding - Gas Shielded) and FCAW - S tend to produce more smoke than GMAW because of the flux in the wire. FCAW - S may produce more smoke than FCAW - G as it is self - shielded and the flux reactions are more intense in an open environment.

Answer:

  1. SMAW advantage: Portable, can work in various weather. Disadvantage: Slower deposition rate. FCAW - S advantage: High deposition rate. Disadvantage: More spatter and fumes.
  2. In construction: FCAW - S, due to weather adaptability and high deposition rate. In automotive: GMAW, for precision and quality on thin - gauge metals.
  3. GMAW usually produces less smoke than FCAW - G and FCAW - S. FCAW - S may produce more smoke than FCAW - G.