Posted: September 13th, 2017

Ass 10

Paper, Order, or Assignment Requirements

ASSIGNMENT # 10

Questions are from Textbook chapters 30,31,32,33 and 34 (Both 10th Edition & 11th Edition)

1. What are some of the possible problems associated with the high temperatures that are commonly used in welding? (RQ30.6)
2. What are some of the common types of weld defects? (RQ30.10)
3. What are the four basic types of fusion welds? (RQ30.11)
4. Why is it possible for the fusion zone to have a chemistry that is different from the filler metal? (RQ30.21)
5. What three types of flames can be produced by varying the oxygen to fuel ratio? (RQ31.4)
6. What is the role of a welding flux? (RQ31.9)
7. How does an oxyacetylene cutting torch differ from an oxyacetylene welding torch? (RQ31.15)
8. What are the three basic types of current and polarity that are used in arc welding? (RQ31.22)
9. What is the function of the slag coating that forms over a shielded metal arc weld? (RQ31.31)
10. What is the primary goal or objective in bulk welding? (RQ31.50)
11. Why is plasma arc cutting an attractive way of cutting high-melting point materials? (RQ31.69)
12. What are the two primary functions of the electrodes in resistance welding? (RQ32.1)
13. Why is there no need for fluxes or shielding gasses in resistance welding? (RQ32.4)
14. What are the three components that contribute to the total resistance between the electrodes? (RQ32.6)
15. What are the possible consequences of too little pressure during the resistance-welding cycle? Too much pressure? (RQ32.9)
16. What is the simplest and most widely used form of resistance welding? (RQ32.13)
17. What is the practical limit of the thicknesses of material that can be readily spot welded? (RQ32.20)
18. How do ultrasonic vibrations produce a weld? (RQ32.43)
19. What are some of the lower temperature methods of joining (RQ33-1)
20. What are the attractive features of laser-beam cutting compared to plasma and oxyfuel processes? (RQ33.22)
21. What are some key differences between brazing and fusion welding? (RQ33.35)
22. What are some of the most commonly used brazing metals? (RQ33.46)
23. What are the three primary functions of a brazing flux? (RQ33.48)
24. What is the primary difference between brazing and soldering? (RQ33.60)
25. What would be some of the characteristics of an ideal adhesive? (RQ34.1)
26. What are some of the types of materials that have been used as industrial adhesives? (RQ34.3)
27. What are some of the primary types of discrete fasteners? (RQ34.35)
28. What are some of the common causes for failure of mechanically fastened joints? (RQ34.40)
29. From a manufacturing viewpoint, why is it desirable to use standard fasteners and minimize the variety of fasteners within a given product? (RQ34.41)
30. What are some of the environmental conditions that might reduce the performance of lifetime of a structural adhesive? (RQ34.16)