14 Questions
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 5
Which manufacturing process involves producing wax patterns that attach to a sprue to form a pattern tree?
Investment casting
In investment casting, what is the purpose of preheating the mold to a high temperature before pouring the molten metal?
To remove any remaining wax residue
Which type of casting allows for the creation of intricate one-piece components with detailed features like separate airfoils?
Investment casting
In sand casting, what is the purpose of a pattern?
To create a full-sized model of the part with allowances for shrinkage and machining
Which material is commonly used to make patterns in sand casting due to being easy to work with but prone to warping?
Wood
Among the following, which process involves creating a ceramic mold that can be used multiple times?
Investment Casting
Which expendable mold casting process uses a pattern made of expanded polystyrene?
Vacuum Molding
What is a key advantage of investment casting over other casting methods?
Close dimensional control and good surface finish
Which type of casting is limited to lower melting point alloys due to the mold material used?
Plaster mold casting
What is a disadvantage of the Zimmer NexGen mobile-bearing knee (MBK) casting process?
Necessitates many processing steps
Which casting process involves pouring a plaster and water mixture over a pattern to create the mold?
Plaster mold casting
What is the economic disadvantage of expendable mold casting compared to permanent mold casting?
Requires a new mold for every casting
Which type of mold is used in ceramic-mold casting that allows for the casting of high-temperature alloys?
Refractory ceramic mold
Learn about the investment casting process as outlined in M P Groover's 'Fundamentals of Modern Manufacturing 4/e'. The process involves steps such as producing wax patterns, creating a pattern tree, coating it with refractory material, and forming a mold.
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