- INTRODUCTION TO DESIGN FOR SIX SIGMA
- CTQ – Critical To Quality
- Relationship between PPM, DPM, and Loss
- Variation and Six Sigma
- Process Capability Indices
- Design for Six Sigma (DFSS)
- IDENTIFY AND DEFINE DFSS OPP. – Phase I
- Project Charter and Business Case
- Project Scope and Key Milestones
- KANO and Customer Perception Model
- Building a QFD House for DFSS
- DEVELOPING CONCEPTS – Phase II
- Multi-Voting and Criteria-Based Metrics
- Failure Modes and Effects Analysis (FMEA)
- Determining Critical to Quality (CTQ) characteristics
- OPTIMIZING DESIGN – Phase III
- Quality Loss Function (QLF)
- Parameter Design for Optimization
- Design of Experiments (DOE) primer
- Correlation of Design Requirements
- DESIGN VERIFICATION – Phase IV
- Verify Process Capability
- Build Prototype Test, Debug, and Fix
- Pilot Run Verification
| |
The following represents our more specific list of elements of the DFSS framework:
- Understand real customer needs through voice of the customer (VOC) analysis
- Use Quality Function Deployment (QFD) to translate customer needs into critical technical characteristics
of the product and ultimately into critical to quality (CTQ) characteristics of the product and process
- Focus on designing for the lifecycle to minimize lifecycle costs, value analysis and target costing and to
enhance reliability with Design for Reliability (DfR) and Design for Testability (DfT).
- Mistake-proof the product and process
- Perform Failures Modes and Effects Analysis (FMEA) or Anticipatory Failure Determination (AFD) to identify
potential failures and take corrective action to mitigate or prevent those failures. FMEA and AFD apply to both the design of the product and the design of the process
- Develop capable manufacturing processes and select processes that are capable of meeting the design requirements, especially with CTQ parameters
- Use Design of Experiments (DoE) or Taguchi Methods to optimize parameter values and reduce variation, in other words, develop a robust design
- Verify and validate that the product design will meet customer needs with peer reviews, checklists, design reviews, simulation and analysis, qualification testing,
production validation testing, focus groups and market testing.
|