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Forming Practice Test: Mechanical Working of Metals
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Mechanical Working of Metals topcis include: Deep drawing, cold rolling, thread rolling, stretch forming, swaging, tube making, rod and tube drawing and metallurgical aspects. Forming is a metalworking process that uses mechanical deformation to change the shape of a metal workpiece. It's an important manufacturing process that can create metal parts of various shapes and sizes.  Here are some types of mechanical working of metals: Forging: A metalworking process that uses compressive force to achieve a desired shape. In hot forging, the metal is heated above the recrystallization... Show more
Forming Practice Test: Mechanical Working of Metals
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25 Questions

1. Corrosion fatigue is very small problem and it has negligible effects on the material properties.
2. Which of the following forming processes is suitable for making utensils and cup shaped objects?
3. The process of drawing a tube without the use of any mandrel is called as tube sinking.
4. In tube drawing equipment, draw bench type uses multiple dies for completing the forming operation.
5. In rotary swaging, the lubrication is not required significantly during the process.
6. Necking phenomena do not occur in the process of a cup or deep drawing.
7. Bull block drawing equipment is mainly used for drawing tubes of very long length.
8. In rod drawing process, the cross-sectional area of the material remains constant.
9. In rod drawing process, the final output is coiled on a large metallic form roll.
10. In rod drawing, a bearing is used which causes frictional drag on the metallic bar.
11. Which of the following processes of metal forming is best suited for making products like aircraft wings and window frames?
12. The dislocation density of the material increases during the process of cold rolling or work hardening.
13. Cold rolling is a process of permanent deformation of material below its re-crystallization temperature.
14. The quality of the metal surface is a very important consideration, which greatly affects the fatigue life of the material.
15. In stretch forming, forming limit curve (FLC) is defined as a locus of all the limit strains in different strain paths of the sheet metal.
16. A relative rotational motion between dies and materials is provided to prevent the formation of burrs during the process of swaging.
17. Which of the following types of stresses is applied during the process of rod or tube drawing?
18. In general, thread rolling process is very slow and uneconomical process.
19. Excessive blank holding force may lead to stretching of sheet metal instead of drawing it.
20. Environmental conditions can affect the fatigue life of material more severely than the sharp stress concentration conditions.
21. Which of the following processes of metal forming is widely used for making the raw material for the manufacturing of bolts?
22. Removing of mandrel after the drawing process may disturb the dimensional tolerances.
23. The fatigue limit or strength of the material can change with respect to time.
24. In stretch forming, spring-back is a very complicated problem which causes trouble in operating machines during the process.
25. The dislocation density of the material is defined as the ratio of total dislocation length per unit volume of the material.