Machine and Process Capability Studies (A8506)

Understand how to complete and interpret machine capability charts and how to perform a process capability study as well as how to calculate a capability index for a machine and a process.

Prerequisites

This lesson is designed for participants familiar with the principles of statistical process control, the function and components of a control chart, and procedures for collecting sample process data. An understanding of the concepts of control limits, specification limits, standard deviation, and the characteristics of a normal curve is also required. Knowledge of basic mathematical skills is recommended.

Description

This lesson explains the purpose and procedures for performing machine and process capability studies. The lesson shows how to complete and interpret machine capability charts and how to perform a process capability study as well as how to calculate a capability index for a machine and a process.

Objectives

Define capability for a machine and a process. Explain the purpose of machine and process capability studies. Perform a machine capability study using a capability chart. Interpret a machine capability graph using the specification limits as guidelines. Perform a process capability study. Calculate two different process capability indices for machines and processes.