SPC Simplified: Practical Steps to Quality

Description

Content: Cover Half Title Title Copyright Contents Preface Introduction MODULE 1 BASIC PRINCIPLES Causes of Variation Tools of Quality The Histogram or Frequency Distribution The Control Chart Variables Charts Attribute Charts Summary MODULE 2 FREQUENCY HISTOGRAMS AND CHECKSHEETS What Is Variation? Frequency Histograms Constructing a Frequency Histogram Some Cautions What Frequency Histograms Tell You About Underlying Frequency Distributions Frequency Histograms in Production Situations Checksheets Summary Practice Problems MODULE 3 VARIABLE CONTROL CHARTS Using Average and Range Charts That Are Already Set Up Interpreting Average and Range Charts Averages Outside Control Limits Other Signs of a Process Out of Control Sources of Assignable Causes Ranges Outside Control Limits Setting Up Average and Range Charts How to Use Control Charts in Continued Production Median and Range Charts Developing a Median and Range Chart Individual and Range Charts Developing an Individual and Range Chart Control Limits Summary Practice Problems MODULE 4 ATTRIBUTE CONTROL CHARTS Why Use an Attribute Control Chart? Percent Defective p-Charts How to Use p-Charts Interpreting Percent Defective p-Charts Percent Defective, p, Inside Control Limits Percent Defective, p, Outside Control Limits Other Indications of Out-of-Control Processes Types of Assignable Causes Setting Up Percent Defective p-Charts Fraction Defective p-Charts How to Use a Newly Developed p-Chart in Continued Production The np-Chart Setting Up the Chart c-Charts How to Use c-Charts Interpreting c-Charts Setting Up c-Charts Summary Practice Problems MODULE 5 MACHINE AND PROCESS CAPABILITY Machine Capability Average and Range Chart Method Limits for Individuals The Probability Plot Estimating the Proportion of Parts Out of Specification Process Capability Capability Index Capability Ratio Summary Practice Problems MODULE 6 QUALITY PROBLEM-SOLVING TOOLS Brainstorming-A Downpour of Ideas What Is Needed for Brainstorming? How Does a Brainstorm Work? Prodding Techniques Completing the Brainstorm-A Thorough Soaking Difficulties With Brainstorming and What to Do About Them Cause and Effect Diagrams-Organizing the Brainstorm Why Use the C and E Diagram? How to Construct a Cause and Effect Diagram The Process of Constructing the Cause and Effect Diagram Types of Cause and Effect Diagrams Pareto Analysis How to Construct a Pareto Diagram How to Interpret the Pareto Diagram Process Flow Charts Process Flow Chart Symbols Constructing a Process Flow Chart How to Use the Process Flow Chart Scatter Diagrams When to Use a Scatter Diagram How to Construct a Scatter Diagram Summary Practice Problems