Investment Casting Process in Modern Manufacturing
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Questions and Answers

Which step in the investment casting process involves heating the mold to melt the wax and allow it to drip out of the cavity?

  • Step 3
  • Step 6
  • Step 5 (correct)
  • Step 7
  • Which manufacturing process involves producing wax patterns that attach to a sprue to form a pattern tree?

  • Shell molding
  • Investment casting (correct)
  • Expendable mold casting
  • Vacuum molding
  • In investment casting, what is the purpose of preheating the mold to a high temperature before pouring the molten metal?

  • To lower the melting point of the metal
  • To solidify the metal faster
  • To remove any remaining wax residue (correct)
  • To increase buoyancy
  • Which type of casting allows for the creation of intricate one-piece components with detailed features like separate airfoils?

    <p>Investment casting</p> Signup and view all the answers

    In sand casting, what is the purpose of a pattern?

    <p>To create a full-sized model of the part with allowances for shrinkage and machining</p> Signup and view all the answers

    Which material is commonly used to make patterns in sand casting due to being easy to work with but prone to warping?

    <p>Wood</p> Signup and view all the answers

    Among the following, which process involves creating a ceramic mold that can be used multiple times?

    <p>Investment Casting</p> Signup and view all the answers

    Which expendable mold casting process uses a pattern made of expanded polystyrene?

    <p>Vacuum Molding</p> Signup and view all the answers

    What is a key advantage of investment casting over other casting methods?

    <p>Close dimensional control and good surface finish</p> Signup and view all the answers

    Which type of casting is limited to lower melting point alloys due to the mold material used?

    <p>Plaster mold casting</p> Signup and view all the answers

    What is a disadvantage of the Zimmer NexGen mobile-bearing knee (MBK) casting process?

    <p>Necessitates many processing steps</p> Signup and view all the answers

    Which casting process involves pouring a plaster and water mixture over a pattern to create the mold?

    <p>Plaster mold casting</p> Signup and view all the answers

    What is the economic disadvantage of expendable mold casting compared to permanent mold casting?

    <p>Requires a new mold for every casting</p> Signup and view all the answers

    Which type of mold is used in ceramic-mold casting that allows for the casting of high-temperature alloys?

    <p>Refractory ceramic mold</p> Signup and view all the answers

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