Question:
The wax pattern in investment casting is removed by:
The wax pattern in investment casting is removed by:
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Investment casting involves burning out the wax in a furnace to maintain mold integrity and detail accuracy.
Updated On: Jun 20, 2025
- Burning it out in a furnace
- Immersing it in a hot acid bath
- Mechanical breaking
- Dissolving it in a solvent
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The Correct Option is A
Solution and Explanation
In investment casting, also known as the lost wax process, a wax pattern is used to create a ceramic mold.
Once the ceramic shell is formed and dried, the wax is removed to leave a cavity for metal pouring.
This removal is typically done by heating the shell in a furnace, which melts and burns out the wax completely.
The process ensures a clean mold cavity with precise details, critical for high-accuracy castings.
Mechanical or chemical methods are not practical or effective for complete wax removal in this context.
Once the ceramic shell is formed and dried, the wax is removed to leave a cavity for metal pouring.
This removal is typically done by heating the shell in a furnace, which melts and burns out the wax completely.
The process ensures a clean mold cavity with precise details, critical for high-accuracy castings.
Mechanical or chemical methods are not practical or effective for complete wax removal in this context.
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