How to Balance Internal Inspection Costs with the Risk of Shipping Defective Parts
The decision of how much to inspect your parts before they ship to your customer is an important one. In the extremes, you could 1) inspect every part you ship or 2) not inspect any parts.
What you’ll learn
- What is acceptance sampling and how is it used..
- The origins of acceptance sampling.
- The advantages and disadvantages of acceptance sampling versus 100% inpsection.
- Variables versus attributes.
- The economic of acceptance sampling.
- AQL, LTPD, Operating Curves, Type I and II errors, and other key concepts.
- How to build an OC in Microsoft Excel.
- An Overview of Mil Standard 105E.
- How to use the major sampling tables.
- Single, double and multiple sampling case studies.
Course Content
- Introduction –> 27 lectures • 1hr 45min.
Requirements
The decision of how much to inspect your parts before they ship to your customer is an important one. In the extremes, you could 1) inspect every part you ship or 2) not inspect any parts.
Option 1 would greatly reduces the number of defective parts you ship, but results in high internal inspection costs. Option 2 greatly reduces your internal sorting costs, but allows defective parts to flow right to your customers, resulting in dissatisfied customers and much high external sorting costs.
Acceptance Sampling offers an range of options in the middle. The basis for acceptance sampling is to inspect a sample of parts from a given lot, and then accepting or rejecting the lot based on the results of that sample inspection. Using Acceptance Sampling allows you to screen out the great majority of defective lots while minimizing your internal inspection costs.
“Introduction to Acceptance Sampling” offer you everything you need to start your own acceptance sampling system including:
- Key terminology and concepts related to acceptance sampling
- An overview of Mil Standard 105E
- When and how Acceptance Sampling is best applied
- The economics of acceptance sampling
- What makes a good inspection plan
- Type I and Type II errors and how they apply to inspection
- Operating Characteristic Curves, OC Curves
- How to build your own OC Curve in Microsoft Excel (Excel template included)
- How to read and interpret sampling plan tables
- Single, double, and multiple sampling plans
- Normal, Tightened, and Reduced sampling plans
- How and why to switch between sampling plans
- Downloadable resources you can use at your workplace
When integrated into an organization’s quality system alongside other powerful tools like Statistical Process Control (SPC), Layered Process Auditing (LPA), and Error Proofing, Acceptance Sampling can provide manufacturing organizations with a lower cost of high customer satisfaction.
If this is your goal, then “Introduction to Acceptance Sampling” is what you need. Sign up today!!