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Flip to reveal answersWhat do all forming processes have in common?
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All 4 Flashcards — Forming techniques
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Question
What do all forming processes have in common?
Answer
Nothing is added or removed — the same material takes a new shape with almost no waste. All of them trade an expensive tool made once for a very low cost per part.
Question
How do blow, rotational and vacuum forming differ?
Answer
Blow moulding makes thin-walled parts with a narrow neck, such as bottles. Rotational moulding makes large seamless hollow parts, such as tanks. Vacuum forming makes open shapes with one good face.
Question
Why does injection moulding need high volume?
Answer
The precision steel tool costs thousands and must be spread over the run. At 400 parts the tooling dominates; at 400,000 it is a fraction of a penny each.
Question
What shape is the signature of extrusion?
Answer
A constant cross-section along the whole length — window frames, pipe, guttering, curtain track and aluminium sections.
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Full study notes for Forming techniques
Topic 4.1 hub
Manufacturing techniques
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