Design for disassembly
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Question
What is the key question in design for disassembly?
Answer
What fails first, and how deep is it buried? In almost every powered product the answer is the battery.
Question
Name four changes that improve disassembly.
Answer
Screws or released clips instead of adhesive; the shortest-lived part reachable first; one fastener type throughout; and materials marked and not bonded together.
Question
Why is repair the largest environmental saving?
Answer
It avoids a whole new product — all its extraction, manufacture and distribution. No material substitution comes close.
Question
Why is design for disassembly often ignored?
Answer
It costs assembly time on every unit, paid by the manufacturer, for a benefit somebody else receives years later — which is why it is regulated.
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Full study notes for Design for disassembly
Topic 12.1 hub
Design for manufacture
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Design Technology exam skills
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