Manufacturing Processes quizzes
How casting and forging shape metals, and why manufacturing methods affect a part’s strength and durability.
2 quizzes
73 questions
Quizzes in this topic
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Manufacturing Processes: Metal casting · Pouring, Solidification and Shrinkage
How molten metal flows, freezes and shrinks in a mold, and how foundries design gates, risers and patterns to get sound castings.
23 questions -
Manufacturing Processes: Why Forged Parts Outlast Cast Ones
How everyday objects get their shape, from sand molds and drink cans to cutting tools, welds, plastic bottles and 3D printers.
50 questions
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From Manufacturing Processes: Metal casting · Pouring, Solidification and Shrinkage
According to Chvorinov's rule, what mainly determines a casting's solidification time?
- The height of the pouring sprue
- Its volume-to-surface-area ratio
- The total weight of metal poured
Show the answer
Answer: Its volume-to-surface-area ratio
Solidification time is proportional to (V/A) raised to a power of about 2, because heat escapes through the surface.
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