5 Questions
What is the purpose of making a pattern slightly larger than the actual part?
To account for shrinkage and machining allowances in the casting
Why is wood a common material for making patterns despite its tendency to warp?
It is easy to work with
What is the advantage of using metal as a pattern material?
It lasts much longer
When are one-piece patterns generally used?
When the shape is relatively simple and the number of duplicate castings is rather small
Why are allowances given on the sizes specified in the drawing when preparing a pattern?
So that the finished and machined casting will conform to the specified sizes
Test your knowledge of pattern making with this quiz! Learn about different pattern materials such as wood, metal, and plastic, and understand the concept of solid patterns. See how much you know about creating accurate models for casting.
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