Mechanical Engineering Exam > Mechanical Engineering Questions > Gears are casted bya)sand mould castingb)slus...
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Gears are casted by
- a)sand mould casting
- b)slush casting
- c)permanent mould casting
- d)centrifugal casting
Correct answer is option 'C'. Can you explain this answer?
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Gears are casted bya)sand mould castingb)slush castingc)permanent moul...
Gear manufacturing refers to the making of gears. Gears can be manufactured by a variety of processes, including casting, forging, extrusion, powder metallurgy, and blanking. As a general rule, however, machining is applied to achieve the final dimensions, shape and surface finish in the gear.
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Gears are casted bya)sand mould castingb)slush castingc)permanent moul...
Gears are casted by permanent mould casting
Explanation:
Permanent mold casting is a metal casting process that uses reusable molds (also known as permanent molds) made from metal. The molds are designed to create complex shapes with high dimensional accuracy and a smooth surface finish. This casting method is commonly used for manufacturing gears.
The process of permanent mold casting:
1. Mold preparation: The permanent mold is preheated and coated with a refractory material to prevent the molten metal from sticking to the mold surface.
2. Molten metal preparation: The metal alloy used for casting the gears is melted in a furnace and brought to the desired pouring temperature.
3. Mold assembly: The mold is assembled by placing the cores and any necessary inserts or gating systems in the mold cavity.
4. Pouring: The molten metal is poured into the mold through a sprue, which allows the metal to flow into the mold cavity.
5. Cooling and solidification: The molten metal cools and solidifies inside the mold, taking the shape of the mold cavity and forming the gear.
6. Demolding: Once the metal has solidified, the mold is opened, and the gear is removed from the mold.
7. Finishing: The cast gear is then subjected to various finishing processes such as grinding, machining, and heat treatment to achieve the desired final shape, dimensions, and mechanical properties.
Advantages of permanent mold casting for gears:
- High dimensional accuracy: Permanent mold casting allows for the production of gears with precise dimensions and tight tolerances.
- Good surface finish: The molds used in permanent mold casting create smooth surfaces on the cast gears, reducing the need for additional finishing operations.
- High production rate: Permanent mold casting is a relatively fast process, allowing for the production of a large number of gears in a short time.
- Cost-effective: The reusable molds used in permanent mold casting can be used for multiple casting cycles, making it a cost-effective method for producing gears.
Conclusion:
Gears are casted by permanent mold casting due to its ability to produce gears with high dimensional accuracy, good surface finish, and cost-effectiveness. This casting method is widely used in the manufacturing of gears for various mechanical applications.
Explanation:
Permanent mold casting is a metal casting process that uses reusable molds (also known as permanent molds) made from metal. The molds are designed to create complex shapes with high dimensional accuracy and a smooth surface finish. This casting method is commonly used for manufacturing gears.
The process of permanent mold casting:
1. Mold preparation: The permanent mold is preheated and coated with a refractory material to prevent the molten metal from sticking to the mold surface.
2. Molten metal preparation: The metal alloy used for casting the gears is melted in a furnace and brought to the desired pouring temperature.
3. Mold assembly: The mold is assembled by placing the cores and any necessary inserts or gating systems in the mold cavity.
4. Pouring: The molten metal is poured into the mold through a sprue, which allows the metal to flow into the mold cavity.
5. Cooling and solidification: The molten metal cools and solidifies inside the mold, taking the shape of the mold cavity and forming the gear.
6. Demolding: Once the metal has solidified, the mold is opened, and the gear is removed from the mold.
7. Finishing: The cast gear is then subjected to various finishing processes such as grinding, machining, and heat treatment to achieve the desired final shape, dimensions, and mechanical properties.
Advantages of permanent mold casting for gears:
- High dimensional accuracy: Permanent mold casting allows for the production of gears with precise dimensions and tight tolerances.
- Good surface finish: The molds used in permanent mold casting create smooth surfaces on the cast gears, reducing the need for additional finishing operations.
- High production rate: Permanent mold casting is a relatively fast process, allowing for the production of a large number of gears in a short time.
- Cost-effective: The reusable molds used in permanent mold casting can be used for multiple casting cycles, making it a cost-effective method for producing gears.
Conclusion:
Gears are casted by permanent mold casting due to its ability to produce gears with high dimensional accuracy, good surface finish, and cost-effectiveness. This casting method is widely used in the manufacturing of gears for various mechanical applications.
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Gears are casted bya)sand mould castingb)slush castingc)permanent mould castingd)centrifugal castingCorrect answer is option 'C'. Can you explain this answer?
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Gears are casted bya)sand mould castingb)slush castingc)permanent mould castingd)centrifugal castingCorrect answer is option 'C'. 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 Gears are casted bya)sand mould castingb)slush castingc)permanent mould castingd)centrifugal castingCorrect answer is option 'C'. 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 Gears are casted bya)sand mould castingb)slush castingc)permanent mould castingd)centrifugal castingCorrect answer is option 'C'. Can you explain this answer?.
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