Design for assembly
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Flip to reveal answersWhat are the three questions that remove a part?
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Question
What are the three questions that remove a part?
Answer
Does it move relative to its neighbour? Must it be a different material? Must it be separable for assembly or service? If all three are no, combine it.
Question
Name four design-for-assembly changes.
Answer
Combine parts into one moulding; snap-fits instead of screws; symmetrical or un-mistakable parts; and assembly from one direction.
Question
Why does a removed part save so much?
Answer
It takes a purchase order, a stock line, an inspection, an assembly operation and a chance of error with it.
Question
When is a lower parts count not better?
Answer
When the parts are bonded into an inseparable lump, or when combining them needs a tool so complicated that the saving disappears.
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Topic 12.1 hub
Design for manufacture
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