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We manufacture small plastic parts using injection-moulding machine. Sometimes there are 2, 3 or 4 cavities in the moulding-tool, so in the same time machine injects and moulds 2, 3 or 4 parts.
The question is if we need to measure (for Ppk, Cpk and Cmk) parts from each cavity or it is enough to measure only one (always the same of course) that represents current injection process.
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The question is if we need to measure (for Ppk, Cpk and Cmk) parts from each cavity or it is enough to measure only one (always the same of course) that represents current injection process.
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