Podcast
Questions and Answers
Which casting process is the most widely used?
Which casting process is the most widely used?
- Permanent mold casting
- Die casting
- Investment casting
- Sand casting (correct)
For which type of metals is sand casting particularly suitable?
For which type of metals is sand casting particularly suitable?
- Metals with high melting temperatures like steels, nickels, and titaniums (correct)
- Precious metals like gold and silver
- Aluminum and copper alloys only
- Low melting point metals only
What is required after the casting is removed from the sand mold?
What is required after the casting is removed from the sand mold?
- PVD coating
- Ultrasonic cleaning
- Painting
- Heat treatment (correct)
What is included in the sand mold to create the cavity for casting?
What is included in the sand mold to create the cavity for casting?
Why must a new sand mold be made for each part produced in sand casting?
Why must a new sand mold be made for each part produced in sand casting?
Besides the casting operation itself, what other components are involved in sand casting?
Besides the casting operation itself, what other components are involved in sand casting?
Which of the following is NOT a disadvantage of casting processes?
Which of the following is NOT a disadvantage of casting processes?
What is the primary function of a foundry?
What is the primary function of a foundry?
Why is the mold cavity slightly oversized compared to the desired final part?
Why is the mold cavity slightly oversized compared to the desired final part?
What type of mold is used in an open mold casting process?
What type of mold is used in an open mold casting process?
Which of the following is NOT a potential safety hazard when processing hot molten metals in casting?
Which of the following is NOT a potential safety hazard when processing hot molten metals in casting?
What is the primary role of the workers who perform the casting operations in a foundry?
What is the primary role of the workers who perform the casting operations in a foundry?
What is the primary purpose of the gating system in a closed mold?
What is the primary purpose of the gating system in a closed mold?
Which type of mold is considered more important for production casting operations?
Which type of mold is considered more important for production casting operations?
What is the primary characteristic of an expendable mold?
What is the primary characteristic of an expendable mold?
What is the primary advantage of the expendable mold casting processes?
What is the primary advantage of the expendable mold casting processes?
What is the primary limitation of the permanent mold casting processes?
What is the primary limitation of the permanent mold casting processes?
Which permanent mold casting process is mentioned as the most familiar?
Which permanent mold casting process is mentioned as the most familiar?
What is the main purpose of baking a dry-sand mold in an oven?
What is the main purpose of baking a dry-sand mold in an oven?
What is the main disadvantage of dry-sand molding compared to green-sand molding?
What is the main disadvantage of dry-sand molding compared to green-sand molding?
What is the purpose of the gating and riser system in a mold?
What is the purpose of the gating and riser system in a mold?
What is the main advantage of a skin-dried mold compared to a green-sand mold?
What is the main advantage of a skin-dried mold compared to a green-sand mold?
What is the purpose of adding special bonding materials to the sand mixture in a skin-dried mold?
What is the purpose of adding special bonding materials to the sand mixture in a skin-dried mold?
What is the primary reason that moisture in the sand can cause defects in some castings?
What is the primary reason that moisture in the sand can cause defects in some castings?
What is the primary function of chaplets in a mold cavity?
What is the primary function of chaplets in a mold cavity?
What is the typical composition (by volume) of a foundry sand mixture?
What is the typical composition (by volume) of a foundry sand mixture?
Which of the following factors can influence the permeability of a mold?
Which of the following factors can influence the permeability of a mold?
What is the purpose of using a flask in the mold making process?
What is the purpose of using a flask in the mold making process?
Which property of the foundry sand is most important for achieving a better surface finish on the cast part?
Which property of the foundry sand is most important for achieving a better surface finish on the cast part?
What is the primary function of the bonding agent in the foundry sand mixture?
What is the primary function of the bonding agent in the foundry sand mixture?
