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Questions and Answers
What is the purpose of making a pattern slightly larger than the actual part?
What is the purpose of making a pattern slightly larger than the actual part?
- To reduce the cost of pattern construction
- To account for shrinkage and machining allowances in the casting (correct)
- To speed up the subsequent molding process
- To make the pattern easier to work with
Why is wood a common material for making patterns despite its tendency to warp?
Why is wood a common material for making patterns despite its tendency to warp?
- It produces high-quality patterns
- It is resistant to warping
- It is the most cost-effective material
- It is easy to work with (correct)
What is the advantage of using metal as a pattern material?
What is the advantage of using metal as a pattern material?
- It speeds up the molding process
- It is less expensive to make
- It lasts much longer (correct)
- It is easier to work with
When are one-piece patterns generally used?
When are one-piece patterns generally used?
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Why are allowances given on the sizes specified in the drawing when preparing a pattern?
Why are allowances given on the sizes specified in the drawing when preparing a pattern?
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