Discussion
State whether the following is true or false.
Extrusion die design is straightforward because the body simply takes the shape of the opening.
Answer: D
Correct answer: False
The body does not simply take the shape of the opening: it flows faster where the section is thicker and where friction is lower, so a die cut to the product’s outline delivers a distorted product. The opening is shaped to compensate, and arriving at it usually takes trial and correction on the machine.
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