MTM0070 Materials engineering Course Materials & Test Answers | moodle.taltech.ee

How does the material tensile strength and ductility change at increased temperatures during hot forming?

Tensile strength increases, ductility decreases

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Both mechanical properties increase

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Both mechanical properties decrease

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Tensile strength decreases, ductility increases

✅

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Which type of sheet forming operation is used to make bowl-shaped products?

drawing

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embossing

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notching

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deep drawing

✅

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How do products produced with cold working compare to the hot working products:

higher dimensional tolerances

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better surface quality and more precise dimensions

✅

inferior surface quality

❌

higher machining allowance

❌

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