This set of Advanced Machining Processes Questions and Answers for Experienced people focuses on “MAF – Applications”.
1. Which of the following applications where MAF is used?
a) Finishing of inner surfaces
b) Polishing of balls and rollers
c) Chamfering and deburring of gears
d) All of the mentioned
View Answer
Explanation: All the applications mentioned above can be fulfilled using MAF.
2. Diamond abrasives used for finishing operation results in which type of surface defects?
a) Deep pits
b) Surface scratches
c) Micro cracks
d) All of the mentioned
View Answer
Explanation: All the defects mentioned above occur, when we use diamond abrasives for material removal.
3. Which of the following conditions is/are not suitable for finishing of ceramic balls?
a) Controlled force
b) Large abrasive sizes
c) Small abrasive sizes
d) Less harder abrasives
View Answer
Explanation: For a better finish, controlled force, fine and less hard abrasives are required.
4. In MAF, ceramic balls and the bearing rollers are placed in between which components?
a) Abrasives and float
b) Drive shaft and float
c) Float and magnets
d) Magnets and abrasives
View Answer
Explanation: Ceramic balls are placed in between drive shaft and float.
5. Polishing in Magnetic abrasive finishing is done, by which action of material removal?
a) Mechanical abrasion
b) Mechanical erosion
c) Chemical corrosion
d) Material vaporization
View Answer
Explanation: Abrasives are used for the polishing and finishing operations of the parts, in Magnetic abrasive finishing.
6. State whether the following statement is true or false regarding MAF.
“As the forces exerted on the rollers are very small, polishing actions takes place very finely.”
a) True
b) False
View Answer
Explanation: Since the forces exerted are very small, polishing is very fine.
7. For obtaining a better finish using Magnetic abrasive finishing, tubes are rotated at which speeds?
a) Very low
b) Low
c) Medium
d) Very High
View Answer
Explanation: To obtain a better finish in Magnetic abrasive finishing, tubes are rotated at very high speeds.
8. Which of the following is an advantage of MAF over Electrolytic finishing?
a) Disposing of electrolyte
b) Cost effective
c) More flexible
d) More accuracy
View Answer
Explanation: In MAF, the problem of disposing electrolyte as in case of Electrolytic finishing is not present.
9. State whether the following statement is true or false about Magnetic abrasive finishing.
“Mirror finishing, removed burrs with lowering the accuracy of the shape are achieved by MAF.”
a) True
b) False
View Answer
Explanation: Removed burrs without lowering the accuracy are obtained using MAF.
10. What are the other applications where Magnetic abrasive finishing can be used?
a) Removal of oxide layers
b) Removal of protective coatings
c) Chamfering
d) All of the mentioned
View Answer
Explanation: All the processes mentioned above can be done using Magnetic abrasive finishing.
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