A vibration-isolation bushing as shown below is assembled in a manufacturing system. The assembly consists of two
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A vibration-isolation bushing as shown below is assembled in a manufacturing system. The assembly consists of two steel plates with a rubber plate between them. The steel plates have a nominal thickness of 3mm, and the rubber plate has 0.5min. The overall dimension has a specification of 6.5 ? 0.35 mm. It is necessary that the standard deviation of the rubber-plate thickness ? R should be half of the standard deviation of the steel- plate thickness as ? S . Calculate the required ? R and ? S according to the following assumptions.
(a) Assume C p = 1
(b) Assume C p = 1.33
(c) Assume that the overall dimensional specification has a tolerance of ? 0.5mm with C p = 1.33.
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