Which material property must chaplets possess for effective support of large cores?
Understand the Problem
The question is asking about the specific material property required for chaplets to effectively support large cores in casting processes. This involves understanding the role that chaplets play in maintaining the position of cores during the pouring of molten metal and the necessary characteristics that would help them perform this function.
Answer
Chaplets should possess a melting temperature equal to or greater than the metal being cast.
Chaplets must either be made of the same metal or have a higher melting temperature than the metal being cast for effective support of large cores.
Answer for screen readers
Chaplets must either be made of the same metal or have a higher melting temperature than the metal being cast for effective support of large cores.
More Information
Chaplets are integral to maintaining the positioning and support of sand cores in metal casting processes. By being made of similar or higher melting point materials, they ensure structural integrity during the casting process.
Tips
A common mistake is choosing chaplets made from a material with a lower melting point, causing them to melt during the casting process, which can result in casting defects.
Sources
- Sand Casting | Metal Casting Resources - Reliance Foundry - reliance-foundry.com
- Core (manufacturing) - Wikipedia - en.wikipedia.org
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