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In which of the following operations performed on lathe machine, chips do not occur?
- a)Knurling
- b)Boring
- c)Reaming
- d)Threading cutting
Correct answer is option 'A'. Can you explain this answer?
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Verified Answer
In which of the following operations performed on lathe machine, chips...
Knurling: Knurling is a manufacturing process whereby a visually‐attractive diamond‐shaped (crisscross) pattern is cut or rolled into metal. This pattern allows human hands or fingers to get a better grip on the knurled object that would be provided by the originally‐smooth metal surface.
Boring: Boring always involves the enlarging of an existing hole, which may have been made by a drill or may be the result of a core in a casting.
Reaming: Reaming removes a small amount of material from the surface of holes. It is done for two purposes: to bring holes to a more exact size and to improve the finish of an existing hole.
Threading: It is the process of making internal or external threads on the workpiece.
Out of the above four processes except knurling, all other involves the chips. So Knurling is the right option.
Most Upvoted Answer
In which of the following operations performed on lathe machine, chips...
Explanation:
Lathe Machine:
A lathe machine is a machine tool that rotates a workpiece about an axis of rotation to perform various operations such as cutting, drilling, knurling, boring, reaming, and threading. It is commonly used in metalworking and woodworking industries.
Chips in Lathe Machine:
During most machining operations, chips are formed as a result of cutting or shaping the workpiece. These chips are the waste material that is removed from the workpiece. The size, shape, and thickness of the chips depend on various factors such as cutting speed, feed rate, depth of cut, and the material being machined.
Operations on Lathe Machine:
1. Knurling: Knurling is a process of impressing a diamond-shaped or straight-line pattern onto the surface of a workpiece. It is commonly used to provide a better grip or aesthetic appeal. Knurling does not involve the removal of material, so chips do not occur in this operation.
2. Boring: Boring is the process of enlarging an existing hole in a workpiece. It is done using a single-point cutting tool with a boring bar. During boring, chips are formed as material is removed from the workpiece to enlarge the hole.
3. Reaming: Reaming is the process of sizing and finishing a previously drilled hole to achieve a high level of accuracy and surface finish. Reaming is done using a multi-fluted cutting tool called a reamer. Similar to boring, chips are formed during reaming as material is removed from the workpiece.
4. Threading Cutting: Threading cutting is the process of cutting threads on the inside or outside of a cylindrical workpiece. It is done using a cutting tool called a tap (for internal threads) or a die (for external threads). Chips are formed during threading cutting as material is removed to form the threaded profile.
Conclusion:
Among the operations listed, knurling is the only operation where chips do not occur. In knurling, a pattern is impressed onto the surface of the workpiece without any material removal. In all other operations - boring, reaming, and threading cutting - chips are formed as material is removed from the workpiece.
Lathe Machine:
A lathe machine is a machine tool that rotates a workpiece about an axis of rotation to perform various operations such as cutting, drilling, knurling, boring, reaming, and threading. It is commonly used in metalworking and woodworking industries.
Chips in Lathe Machine:
During most machining operations, chips are formed as a result of cutting or shaping the workpiece. These chips are the waste material that is removed from the workpiece. The size, shape, and thickness of the chips depend on various factors such as cutting speed, feed rate, depth of cut, and the material being machined.
Operations on Lathe Machine:
1. Knurling: Knurling is a process of impressing a diamond-shaped or straight-line pattern onto the surface of a workpiece. It is commonly used to provide a better grip or aesthetic appeal. Knurling does not involve the removal of material, so chips do not occur in this operation.
2. Boring: Boring is the process of enlarging an existing hole in a workpiece. It is done using a single-point cutting tool with a boring bar. During boring, chips are formed as material is removed from the workpiece to enlarge the hole.
3. Reaming: Reaming is the process of sizing and finishing a previously drilled hole to achieve a high level of accuracy and surface finish. Reaming is done using a multi-fluted cutting tool called a reamer. Similar to boring, chips are formed during reaming as material is removed from the workpiece.
4. Threading Cutting: Threading cutting is the process of cutting threads on the inside or outside of a cylindrical workpiece. It is done using a cutting tool called a tap (for internal threads) or a die (for external threads). Chips are formed during threading cutting as material is removed to form the threaded profile.
Conclusion:
Among the operations listed, knurling is the only operation where chips do not occur. In knurling, a pattern is impressed onto the surface of the workpiece without any material removal. In all other operations - boring, reaming, and threading cutting - chips are formed as material is removed from the workpiece.
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In which of the following operations performed on lathe machine, chips do not occur?a)Knurlingb)Boringc)Reamingd)Threading cuttingCorrect answer is option 'A'. Can you explain this answer?
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