Podcast
Questions and Answers
Which of the following sand characteristics primarily influences the ease with which gases can escape during the casting process?
Which of the following sand characteristics primarily influences the ease with which gases can escape during the casting process?
- Reusability
- Permeability (correct)
- Collapsibility
- Strength
Why is collapsibility an important characteristic of sand used in casting?
Why is collapsibility an important characteristic of sand used in casting?
- To ensure the mold can withstand high temperatures without deforming.
- To enable easy removal of the casting from the mold after solidification, preventing cracks. (correct)
- To allow the sand to be reused multiple times without losing its properties.
- To maintain a consistent grain size during the casting process.
In sand casting, what role does the 'Pattern' primarily serve?
In sand casting, what role does the 'Pattern' primarily serve?
- To provide structural support to the sand mold during pouring.
- To create the cavity in the sand mold that will be filled with molten metal. (correct)
- To filter impurities from the molten metal as it is poured.
- To regulate the cooling rate of the molten metal.
What is the primary function of chaplets in sand casting?
What is the primary function of chaplets in sand casting?
Why is 'sand preparation' a crucial step in the sand casting process?
Why is 'sand preparation' a crucial step in the sand casting process?
What is the function of a 'riser' in a sand casting mold?
What is the function of a 'riser' in a sand casting mold?
Which of the following is a primary reason for using expendable-mold casting processes?
Which of the following is a primary reason for using expendable-mold casting processes?
What is the main advantage of using shell-mold casting compared to traditional sand casting?
What is the main advantage of using shell-mold casting compared to traditional sand casting?
In the investment casting process, what is the 'investment'?
In the investment casting process, what is the 'investment'?
In expandable-pattern casting, what happens to the foam pattern during the pouring of molten metal?
In expandable-pattern casting, what happens to the foam pattern during the pouring of molten metal?
Which casting process typically requires the use of a 'core'?
Which casting process typically requires the use of a 'core'?
What is the primary purpose of the 'gating system' in sand casting?
What is the primary purpose of the 'gating system' in sand casting?
Which of the listed sand types would be most suitable for casting high-temperature alloys that react with acidic mold materials?
Which of the listed sand types would be most suitable for casting high-temperature alloys that react with acidic mold materials?
What is a key difference between plaster-mold casting and ceramic-mold casting?
What is a key difference between plaster-mold casting and ceramic-mold casting?
In sand casting, what is the function of the 'cope' and 'drag'?
In sand casting, what is the function of the 'cope' and 'drag'?
Which of the listed casting process generally leads to the least amount of material waste?
Which of the listed casting process generally leads to the least amount of material waste?
What is the primary reason for using metal shot in shell molding?
What is the primary reason for using metal shot in shell molding?
A foundry is experiencing porosity issues in their sand castings. What adjustment to the sand preparation would most likely address this?
A foundry is experiencing porosity issues in their sand castings. What adjustment to the sand preparation would most likely address this?
Which statement best describes the thermal expansion behavior of Zircon sand compared to Silica sand?
Which statement best describes the thermal expansion behavior of Zircon sand compared to Silica sand?
In the context of the sand casting process, what is the AFS grain fineness number primarily used to indicate?
In the context of the sand casting process, what is the AFS grain fineness number primarily used to indicate?
Flashcards
What is Sand Casting?
What is Sand Casting?
A casting process using sand as the mold material.
What are Cores?
What are Cores?
Used in sand casting to create internal cavities in the casting.
What are Chaplets?
What are Chaplets?
Metal supports to hold the core in place during sand casting.
What is Permeability?
What is Permeability?
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What is Thermal Stability?
What is Thermal Stability?
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What is Collapsibility?
What is Collapsibility?
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What is Shell-Mold Casting?
What is Shell-Mold Casting?
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What is Expandable-Pattern Casting?
What is Expandable-Pattern Casting?
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What is Investment Casting?
What is Investment Casting?
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What is Plaster mold casting?
What is Plaster mold casting?
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Study Notes
MEC 304 Manufacturing Technologies - Casting (Part B)
- Expandable-Mold Casting Processes are being discussed.
- This course is taught in English and is compulsory for Bachelor level students.
- The course is worth 4 credits and 4 ECTS.
- The course format includes lecture, discussion, questions, answers, and practice.
- The course objectives aimed at students being able to:
- Formulate and analyze stresses and strains in machines subject to various loads.
- Perform tolerance analysis and specify appropriate applications.
- Apply multidimensional static failure criteria in mechanical components.
- Apply multidimensional fatigue failure criteria in mechanical components.
- Analyze and design structural joints and power transmission shafts.
- Analyze and design mechanical springs.
- Understand standards, safety, reliability, and manufacturing aspects in mechanical design.
- Improve their technical report writing skills.
Sand Casting
- This study is on a sand casting process.
Sand Properties
- Key sand properties are Strength, Permeability, Thermal Stability, Collapsibility and Reusability
Shell-Mold Casting
- This study is on a shell-mold casting process
Expandable Pattern Casting
- This study is on an expandable pattern casting process
Investment Casting
- This study is on an investment casting process
Plaster-Mold and Ceramic-Mold
- This study is on a plaster-mold and ceramic-mold process
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