Teeth of internal spur gears can be accurately cut in a[ME 1989]a)Mill...
Gear hobbing produces most accurate external gear but cannot generate internal gear.
View all questions of this test
Teeth of internal spur gears can be accurately cut in a[ME 1989]a)Mill...
Introduction:
The question asks about the machine that can accurately cut the teeth of internal spur gears. Internal spur gears are gears with teeth on the inner surface, and they are used in various mechanical systems to transmit rotational motion. It is important to accurately cut the teeth of these gears to ensure smooth and efficient operation.
Explanation:
The correct answer is option B, which is a gear shaping machine. Below are the reasons why a gear shaping machine is suitable for cutting the teeth of internal spur gears:
1. Gear shaping process:
- The gear shaping process involves using a specially designed cutting tool called a gear shaper cutter to cut the teeth of the gear.
- In this process, the gear blank, which is the initial shape of the gear, is mounted on a rotating mandrel.
- The gear shaper cutter is then fed into the gear blank, and its motion is controlled to create the desired shape and profile of the gear teeth.
- The gear shaper cutter is designed to cut both external and internal gear teeth, making it suitable for cutting the teeth of internal spur gears.
2. Accuracy:
- Gear shaping machines are known for their high accuracy in cutting gear teeth.
- The cutting tool used in gear shaping machines can be precisely controlled to create the desired tooth profile with tight tolerances.
- This ensures that the teeth of the internal spur gears are cut accurately, resulting in smooth and efficient operation.
3. Flexibility:
- Gear shaping machines offer flexibility in terms of the types and sizes of gears that can be cut.
- They can be used to cut a wide range of gear sizes, including small and large internal spur gears.
- This flexibility makes gear shaping machines a versatile choice for cutting the teeth of internal spur gears.
4. Efficiency:
- Gear shaping machines are designed for high productivity and efficiency.
- They can cut multiple teeth simultaneously, which helps to reduce the overall cutting time.
- This makes gear shaping machines a cost-effective option for mass production of internal spur gears.
Conclusion:
In conclusion, gear shaping machines are the most suitable choice for accurately cutting the teeth of internal spur gears. They offer high accuracy, flexibility, and efficiency in the gear shaping process, making them an ideal machine for this application.
To make sure you are not studying endlessly, EduRev has designed Mechanical Engineering study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Mechanical Engineering.