6s黑带培训教材(ppt 72页)(英文)
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资料简介：
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Process Variation
Process Capability
Specification, Process and Control Limits
Process Potential vs Process Performance
Short-Term vs Long-Term Process Capability
Process Capability for Non-Normal Data
Cycle-Time (Exponential Distribution)
Reject Rate (Binomial Distribution)
Defect Rate (Poisson Distribution)
Process Variation is the inevitable differences among individual
measurements or units produced by a process.
Sources of Variation
within unit (positional variation)
between units (unit-unit variation)
between lots (lot-lot variation)
between lines (line-line variation)
across time (time-time variation)
measurement error(repeatability & reproducibility)
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