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Which of the following are correct for an indirect hot extrusion process?
1. Billet remains stationary
2. There is no friction force between billet and container walls
3. The force required on the punch is more in comparison to direct extrusion
4. Extruded parts have to be provided a support
- a)1, 2, 3 and 4
- b)1, 2 and 3 only
- c)1, 2 and 4 only
- d)2, 3 and 4 only
Correct answer is option 'C'. Can you explain this answer?
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Which of the following are correct for an indirect hot extrusion proc...
The advantage of indirect extrusion is
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1. 25-30% reduction in maximum load relative to direct extrusion.
2. Extrusion pressure is not a function of billet length.
3. No friction between billet and container.
4. Tool has a higher service life.
Most Upvoted Answer
Which of the following are correct for an indirect hot extrusion proc...
Indirect hot extrusion is a metal forming process in which a billet is placed inside a container and then pushed through a die using a punch. The billet is heated to a high temperature to make it malleable and easier to extrude. Here's a detailed explanation of each statement:
1. Billet remains stationary:
In an indirect hot extrusion process, the billet is held stationary inside the container while the punch moves towards it. The force applied by the punch causes the billet material to flow through the die, resulting in the desired shape.
2. There is no friction force between the billet and container walls:
This statement is incorrect. Friction between the billet and the container walls is an important factor in the extrusion process. Friction helps to control the material flow and prevent excessive deformation. The frictional force also affects the force required on the punch and the overall extrusion process.
3. The force required on the punch is more in comparison to direct extrusion:
This statement is correct. In indirect hot extrusion, the force required on the punch is generally higher compared to direct extrusion. This is because the force has to overcome the resistance from the friction between the billet and container walls. Additionally, the force required depends on factors such as the material properties, die design, and desired extrusion shape.
4. Extruded parts have to be provided a support:
This statement is also correct. During the extrusion process, the extruded parts need to be supported to prevent bending or deformation. Support can be provided using fixtures or tooling to hold the extruded parts in place and maintain their shape.
In summary, the correct statements for an indirect hot extrusion process are:
- Billet remains stationary
- The force required on the punch is more in comparison to direct extrusion
- Extruded parts have to be provided support.
1. Billet remains stationary:
In an indirect hot extrusion process, the billet is held stationary inside the container while the punch moves towards it. The force applied by the punch causes the billet material to flow through the die, resulting in the desired shape.
2. There is no friction force between the billet and container walls:
This statement is incorrect. Friction between the billet and the container walls is an important factor in the extrusion process. Friction helps to control the material flow and prevent excessive deformation. The frictional force also affects the force required on the punch and the overall extrusion process.
3. The force required on the punch is more in comparison to direct extrusion:
This statement is correct. In indirect hot extrusion, the force required on the punch is generally higher compared to direct extrusion. This is because the force has to overcome the resistance from the friction between the billet and container walls. Additionally, the force required depends on factors such as the material properties, die design, and desired extrusion shape.
4. Extruded parts have to be provided a support:
This statement is also correct. During the extrusion process, the extruded parts need to be supported to prevent bending or deformation. Support can be provided using fixtures or tooling to hold the extruded parts in place and maintain their shape.
In summary, the correct statements for an indirect hot extrusion process are:
- Billet remains stationary
- The force required on the punch is more in comparison to direct extrusion
- Extruded parts have to be provided support.
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Which of the following are correct for an indirect hot extrusion process?1. Billet remains stationary2. There is no friction force between billet and container walls3. The force required on the punch is more in comparison to direct extrusion4. Extruded parts have to be provided a supporta)1, 2, 3 and 4b)1, 2 and 3 onlyc)1, 2 and 4 onlyd)2, 3 and 4 onlyCorrect answer is option 'C'. Can you explain this answer?
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Which of the following are correct for an indirect hot extrusion process?1. Billet remains stationary2. There is no friction force between billet and container walls3. The force required on the punch is more in comparison to direct extrusion4. Extruded parts have to be provided a supporta)1, 2, 3 and 4b)1, 2 and 3 onlyc)1, 2 and 4 onlyd)2, 3 and 4 onlyCorrect answer is option 'C'. Can you explain this answer? for Railways 2024 is part of Railways preparation. The Question and answers have been prepared according to the Railways exam syllabus. Information about Which of the following are correct for an indirect hot extrusion process?1. Billet remains stationary2. There is no friction force between billet and container walls3. The force required on the punch is more in comparison to direct extrusion4. Extruded parts have to be provided a supporta)1, 2, 3 and 4b)1, 2 and 3 onlyc)1, 2 and 4 onlyd)2, 3 and 4 onlyCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Railways 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following are correct for an indirect hot extrusion process?1. Billet remains stationary2. There is no friction force between billet and container walls3. The force required on the punch is more in comparison to direct extrusion4. Extruded parts have to be provided a supporta)1, 2, 3 and 4b)1, 2 and 3 onlyc)1, 2 and 4 onlyd)2, 3 and 4 onlyCorrect answer is option 'C'. Can you explain this answer?.
Which of the following are correct for an indirect hot extrusion process?1. Billet remains stationary2. There is no friction force between billet and container walls3. The force required on the punch is more in comparison to direct extrusion4. Extruded parts have to be provided a supporta)1, 2, 3 and 4b)1, 2 and 3 onlyc)1, 2 and 4 onlyd)2, 3 and 4 onlyCorrect answer is option 'C'. Can you explain this answer? for Railways 2024 is part of Railways preparation. The Question and answers have been prepared according to the Railways exam syllabus. Information about Which of the following are correct for an indirect hot extrusion process?1. Billet remains stationary2. There is no friction force between billet and container walls3. The force required on the punch is more in comparison to direct extrusion4. Extruded parts have to be provided a supporta)1, 2, 3 and 4b)1, 2 and 3 onlyc)1, 2 and 4 onlyd)2, 3 and 4 onlyCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Railways 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following are correct for an indirect hot extrusion process?1. Billet remains stationary2. There is no friction force between billet and container walls3. The force required on the punch is more in comparison to direct extrusion4. Extruded parts have to be provided a supporta)1, 2, 3 and 4b)1, 2 and 3 onlyc)1, 2 and 4 onlyd)2, 3 and 4 onlyCorrect answer is option 'C'. Can you explain this answer?.
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