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Which one of the following is the correct statement?
- a)Extrusion is used for the manufacture of seamless tubes.
- b)Extrusion is used for reducing the diameter of round bars and tubes by rotating dieswhich open and close rapidly on the work?
- c)Extrusion is used to improve fatigue resistance of the metal by setting up compressivestresses on its surface
- d)Extrusion comprises pressing the metal inside a chamber to force it out by high pressurethrough an orifice which is shaped to provide the desired from of the finished part.
Correct answer is option 'D'. Can you explain this answer?
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Which one of the following is the correct statement?a)Extrusion is use...
Extrusion is a metal forming process in which a material is forced through a die to create a desired shape or profile. The correct statement among the given options is option 'D', which states that extrusion comprises pressing the metal inside a chamber to force it out by high pressure through an orifice that is shaped to provide the desired form of the finished part.
Below is a detailed explanation of the statement:
Definition of Extrusion:
Extrusion is a process in which a material, typically a metal or a polymer, is forced through a die to create a specific shape or profile. It is commonly used in the manufacturing industry to produce products with a constant cross-sectional shape, such as rods, tubes, and various other profiles.
Working Principle of Extrusion:
The extrusion process involves applying high pressure to a material, usually in a softened or molten state, and forcing it through a die. The die is a specially designed opening that determines the shape and size of the extruded product.
How Extrusion Works:
1. Material Preparation: The material to be extruded is first prepared by heating it to a specific temperature. In the case of metals, this temperature is usually below the melting point but high enough to soften the material for deformation.
2. Chamber and Ram: The softened material is then placed inside a chamber, which is a cylinder-like container with a moveable ram or plunger. The ram applies high pressure to the material, forcing it to flow through the die.
3. Die Design: The die is designed to provide the desired shape and size of the finished part. It consists of an orifice, which is a specially shaped opening through which the material flows. The orifice imparts the desired form to the material as it passes through.
4. Extrusion Process: The ram applies a high force on the material, pushing it through the die orifice. As the material passes through the orifice, it undergoes plastic deformation and takes on the shape defined by the die.
5. Cooling and Finishing: After extrusion, the product is cooled and hardened to retain its shape. It may undergo further processing, such as cutting, machining, or surface treatment, to achieve the desired final properties and finish.
Advantages of Extrusion:
- High production rates
- Ability to produce complex shapes with a continuous cross-section
- Cost-effective for large-scale production
- Material savings as it minimizes waste
- Improved mechanical properties due to the alignment of the material's grain structure
In conclusion, option 'D' is the correct statement as it accurately describes the process of extrusion, where the metal is pressed inside a chamber and forced out through a shaped orifice under high pressure to obtain the desired form of the finished part.
Below is a detailed explanation of the statement:
Definition of Extrusion:
Extrusion is a process in which a material, typically a metal or a polymer, is forced through a die to create a specific shape or profile. It is commonly used in the manufacturing industry to produce products with a constant cross-sectional shape, such as rods, tubes, and various other profiles.
Working Principle of Extrusion:
The extrusion process involves applying high pressure to a material, usually in a softened or molten state, and forcing it through a die. The die is a specially designed opening that determines the shape and size of the extruded product.
How Extrusion Works:
1. Material Preparation: The material to be extruded is first prepared by heating it to a specific temperature. In the case of metals, this temperature is usually below the melting point but high enough to soften the material for deformation.
2. Chamber and Ram: The softened material is then placed inside a chamber, which is a cylinder-like container with a moveable ram or plunger. The ram applies high pressure to the material, forcing it to flow through the die.
3. Die Design: The die is designed to provide the desired shape and size of the finished part. It consists of an orifice, which is a specially shaped opening through which the material flows. The orifice imparts the desired form to the material as it passes through.
4. Extrusion Process: The ram applies a high force on the material, pushing it through the die orifice. As the material passes through the orifice, it undergoes plastic deformation and takes on the shape defined by the die.
5. Cooling and Finishing: After extrusion, the product is cooled and hardened to retain its shape. It may undergo further processing, such as cutting, machining, or surface treatment, to achieve the desired final properties and finish.
Advantages of Extrusion:
- High production rates
- Ability to produce complex shapes with a continuous cross-section
- Cost-effective for large-scale production
- Material savings as it minimizes waste
- Improved mechanical properties due to the alignment of the material's grain structure
In conclusion, option 'D' is the correct statement as it accurately describes the process of extrusion, where the metal is pressed inside a chamber and forced out through a shaped orifice under high pressure to obtain the desired form of the finished part.
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Which one of the following is the correct statement?a)Extrusion is used for the manufacture of seamless tubes.b)Extrusion is used for reducing the diameter of round bars and tubes by rotating dieswhich open and close rapidly on the work?c)Extrusion is used to improve fatigue resistance of the metal by setting up compressivestresses on its surfaced)Extrusion comprises pressing the metal inside a chamber to force it out by high pressurethrough an orifice which is shaped to provide the desired from of the finished part.Correct answer is option 'D'. Can you explain this answer?
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Which one of the following is the correct statement?a)Extrusion is used for the manufacture of seamless tubes.b)Extrusion is used for reducing the diameter of round bars and tubes by rotating dieswhich open and close rapidly on the work?c)Extrusion is used to improve fatigue resistance of the metal by setting up compressivestresses on its surfaced)Extrusion comprises pressing the metal inside a chamber to force it out by high pressurethrough an orifice which is shaped to provide the desired from of the finished part.Correct answer is option 'D'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about Which one of the following is the correct statement?a)Extrusion is used for the manufacture of seamless tubes.b)Extrusion is used for reducing the diameter of round bars and tubes by rotating dieswhich open and close rapidly on the work?c)Extrusion is used to improve fatigue resistance of the metal by setting up compressivestresses on its surfaced)Extrusion comprises pressing the metal inside a chamber to force it out by high pressurethrough an orifice which is shaped to provide the desired from of the finished part.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following is the correct statement?a)Extrusion is used for the manufacture of seamless tubes.b)Extrusion is used for reducing the diameter of round bars and tubes by rotating dieswhich open and close rapidly on the work?c)Extrusion is used to improve fatigue resistance of the metal by setting up compressivestresses on its surfaced)Extrusion comprises pressing the metal inside a chamber to force it out by high pressurethrough an orifice which is shaped to provide the desired from of the finished part.Correct answer is option 'D'. Can you explain this answer?.
Which one of the following is the correct statement?a)Extrusion is used for the manufacture of seamless tubes.b)Extrusion is used for reducing the diameter of round bars and tubes by rotating dieswhich open and close rapidly on the work?c)Extrusion is used to improve fatigue resistance of the metal by setting up compressivestresses on its surfaced)Extrusion comprises pressing the metal inside a chamber to force it out by high pressurethrough an orifice which is shaped to provide the desired from of the finished part.Correct answer is option 'D'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about Which one of the following is the correct statement?a)Extrusion is used for the manufacture of seamless tubes.b)Extrusion is used for reducing the diameter of round bars and tubes by rotating dieswhich open and close rapidly on the work?c)Extrusion is used to improve fatigue resistance of the metal by setting up compressivestresses on its surfaced)Extrusion comprises pressing the metal inside a chamber to force it out by high pressurethrough an orifice which is shaped to provide the desired from of the finished part.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following is the correct statement?a)Extrusion is used for the manufacture of seamless tubes.b)Extrusion is used for reducing the diameter of round bars and tubes by rotating dieswhich open and close rapidly on the work?c)Extrusion is used to improve fatigue resistance of the metal by setting up compressivestresses on its surfaced)Extrusion comprises pressing the metal inside a chamber to force it out by high pressurethrough an orifice which is shaped to provide the desired from of the finished part.Correct answer is option 'D'. Can you explain this answer?.
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