EMAE 160 FINAL Questions - Lecture 5
(Welding, Brazing, and Adhesives)
Complete Answers
12. Identify four advantages of adhesive bonding over other joining techniques. -
ANSWER-1. ability to join a wide variety of similar and dissimilar materials
2. stresses are distributed over the entirety of the joint
3. fragile parts can easily be joined
4. some adhesives lend flexibility to the joint
5. low curing temperatures
6. ability to seal as well as bond
7. simplified joint design
13. What is the function of a flux in brazing or soldering? - ANSWER-Flux inhibits
oxide layers and promotes wetting of the surface
14. In welding, what is purpose of a shielding gas? - ANSWER-to prevent oxidation
or burning of the molten metal
15. "MIG" is a term applied to which welding process? - ANSWER-metal inert gas in
GMAW
16. "Stick" welding is another term for which process? - ANSWER-SMAW
17. Where do weld failures always occur? Why? - ANSWER-in the [fusion zone] of
the weld joint due to thermal expansion causing dimensional changes and in the
[heat applied zone] due to metallurgical damage
18. "TIG" is a term applied to which welding process? - ANSWER-tungest inert gas
in GTAW
19. How do brazing and soldering differ from the fusion welding process? -
ANSWER-Brazing/soldering: no melting of the base metal occurs (weak procedure
since more prone to adhesion failure)
Fusion welding: dissimilar metals can be joined in welding
20. List some advantages of stud welding. - ANSWER-1. fast attachement
2. no reverse marking
3. welded joint is stronger than the parent material/stud
4. access is only required from one side
5. no holes thus no leaking or weakening of sheet
21. List some advantages of FCAW. (vs MIG SMAW) - ANSWER-1. no shielding gas
needed
2. less precleaning
3. high deposition rate
(Welding, Brazing, and Adhesives)
Complete Answers
12. Identify four advantages of adhesive bonding over other joining techniques. -
ANSWER-1. ability to join a wide variety of similar and dissimilar materials
2. stresses are distributed over the entirety of the joint
3. fragile parts can easily be joined
4. some adhesives lend flexibility to the joint
5. low curing temperatures
6. ability to seal as well as bond
7. simplified joint design
13. What is the function of a flux in brazing or soldering? - ANSWER-Flux inhibits
oxide layers and promotes wetting of the surface
14. In welding, what is purpose of a shielding gas? - ANSWER-to prevent oxidation
or burning of the molten metal
15. "MIG" is a term applied to which welding process? - ANSWER-metal inert gas in
GMAW
16. "Stick" welding is another term for which process? - ANSWER-SMAW
17. Where do weld failures always occur? Why? - ANSWER-in the [fusion zone] of
the weld joint due to thermal expansion causing dimensional changes and in the
[heat applied zone] due to metallurgical damage
18. "TIG" is a term applied to which welding process? - ANSWER-tungest inert gas
in GTAW
19. How do brazing and soldering differ from the fusion welding process? -
ANSWER-Brazing/soldering: no melting of the base metal occurs (weak procedure
since more prone to adhesion failure)
Fusion welding: dissimilar metals can be joined in welding
20. List some advantages of stud welding. - ANSWER-1. fast attachement
2. no reverse marking
3. welded joint is stronger than the parent material/stud
4. access is only required from one side
5. no holes thus no leaking or weakening of sheet
21. List some advantages of FCAW. (vs MIG SMAW) - ANSWER-1. no shielding gas
needed
2. less precleaning
3. high deposition rate
