Discussion :: Workshop Technology
- Extrusion
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A.
Is extensively used for making bolts and nuts |
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B.
Is used for reducing the diameter of round bars and tubes by rotating dies which open and close rapidly on the work |
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C.
Is used to improve fatigue resistance of the metal by setting up compressive stresses in its surface |
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D.
Consists of pressing the metal inside a chamber to force it out by high pressure through an orifice which is shaped to provide the desired form of the finished part |
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Answer : Option D
Explanation :
Extrusion is a process used to create objects of a fixed cross-sectional profile. A material is pushed through a die of the desired cross-section.
Extrusion is Consists of pressing the metal inside a chamber to force it out by high pressure through an orifice which is shaped to provide the desired form of the finished part
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