Training
SPC / Process Capability
The objective of the SPC/Process Capability curriculum is to provide participants with the analytical tools and methods necessary to:
- Understand SPC fundamentals and the importance of reducing variation
- Implement control charting in order to assess process stability
- Interpret control chart signals and implement appropriate reaction plans
- Determine appropriate sampling plans and sample sizes
- Assess process capability (for normal and non-normal data)
- Apply charting techniques for short production runs
- Apply charting methods where multiple sources of variation may exist (e.g. multiple cavities, filling heads)
- Apply SPC for naturally trending data (e.g. due to tool wear)
- Determine the appropriate type of chart for a given process
- Avoid common misapplications of SPC in practice
Seminar Content (3 Days)
- Variation Fundamentals
- Concept of Variation
- The Normal Distribution
- Control Chart Concepts/Examples
- Control Limits vs. Specification Limits
- Definition of Control/Stability
- Definition of Quality
- Sources of Variation
- Process Capability Concepts
- Quality Control vs. Process Control
- Basic Statistics
- Individuals, Averages, and the Central Limit Theorem
- Control Charts
- Constructing Charts (Variable Data)
- Xbar/R , Xbar/S, I-MR Charts
- Chart Signals for Special Causes
- Interpreting Charts
- Type I and Type II Errors
- Recomputing Control Limits
- Sampling Procedures and Frequency
- Rational Samples
- Chart Sensitivity / Sample Size
- Determining Appropriate Sample Sizes
- Control Chart Selection
- Process Capability
- Stability vs. Capability
- Types of Capability Assessments
- Estimating PPM / Proportion Defective
- The Standard Normal (Z Values)
- Capability Indices: Cp, Cpk, Pp, Ppk
- Interpreting Indices
- Process Capability for Non-Normal Data (Overview)
- Specialized Charts
- Short Run Charts
- Within/Between Charts (Multiple Locations)
- CUSUM Charts
- Trending Charts
- Charts for Attribute Data