Suppose that the design engineering team set the specifications for length of a stamped sheet-metal part at 10 inches (T) with acceptable tolerances of ±.05 inches (USL and LSL). The average length of the products produced by the actual stamping process is 9.99 inches (m) with a standard deviation of .015 inches (s). What is the Cpk of the process? As a reminder, here are the process capability equations: USL LSL| 60 Cpk = Cp (1 k) CP = k = - |T - μ| |USL-LSL| 2
Suppose that the design engineering team set the specifications for length of a stamped sheet-metal part at 10 inches (T) with acceptable tolerances of ±.05 inches (USL and LSL). The average length of the products produced by the actual stamping process is 9.99 inches (m) with a standard deviation of .015 inches (s). What is the Cpk of the process? As a reminder, here are the process capability equations: USL LSL| 60 Cpk = Cp (1 k) CP = k = - |T - μ| |USL-LSL| 2
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:Suppose that the design engineering
team set the specifications for length
of a stamped sheet-metal part at 10
inches (T) with acceptable tolerances of
±.05 inches (USL and LSL). The average
length of the products produced by the
actual stamping process is 9.99 inches
(m) with a standard deviation of .015
inches (s).
What is the
Cpk
of the process?
As a reminder, here are the process
capability equations:
|USL – LSL|
Cp
60
Cpk = C, (1 – k)
|T – µ|
k =
JUSL-LSL|
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