Asked by Mariela Arches on Jun 07, 2024
Verified
The specifications for a manifold gasket that installs between two engine parts calls for a thickness of 2.500 mm ± .020 mm. The standard deviation of the process is estimated to be 0.004 mm. What are the upper and lower specification limits for this product? The process is currently operating at a mean thickness of 2.50 mm. (a) What is the Cp for this process? (b) The purchaser of these parts requires a capability index of 1.50. Is this process capable? Is this process good enough for the supplier? (c) If the process mean were to drift from its setting of 2.500 mm to a new mean of 2.497, would the process still be good enough for the supplier's needs?
Specification Limits
Predetermined boundaries set for the acceptable range of product dimensions, materials, or performance standards to ensure quality.
Capability Index
A statistical measure used to assess the ability of a process to produce output within specified limits.
Process Mean
The average value in a set of process measurements, indicating the central tendency over a period of time.
- Execute computation and interpretation of the capability indices (Cp, Cpk), acknowledging their significance in the scrutiny of process capability.
- Evaluate the steadiness and potential of processes by applying statistical methodologies.
- Determine the necessity for procedural modifications through statistical examination.
Verified Answer
Learning Objectives
- Execute computation and interpretation of the capability indices (Cp, Cpk), acknowledging their significance in the scrutiny of process capability.
- Evaluate the steadiness and potential of processes by applying statistical methodologies.
- Determine the necessity for procedural modifications through statistical examination.
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