SOLIDWORKS Inspection-AQL

What is SOLIDWORKS Inspection?

SOLIDWORKS Inspection is a First Article Inspection (FAI) and in-process inspection software that streamlines and automates the creation of ballooned inspection drawings and inspection reports (AS9102, PPAP, etc.).

SOLIDWORKS Inspection consists of a stand-alone application and a SOLIDWORKS add-in that enables users to leverage their legacy data regardless of whether they have SOLIDWORKS files, PDFs, or TIFFs.

SOLIDWORKS Inspection is a simple and intuitive application that can reduce the time needed to create inspection documentation by up to 90 percent, and helps to virtually eliminate input errors, thus improving quality and reducing time-to-market.

SOLIDWORKS Inspection Professional extends capabilities by giving users multiple ways to enter measured values directly into the project to help simplify part inspection. Each characteristic value can be entered manually, by using a digital calliper, or by importing coordinate measuring machine (CMM) results.

What is AQL(Acceptable Quality Limits)?

The Acceptable Quality Limit, commonly referred to as AQL, is a method widely used to measure a production order sample to find whether or not the entire product order has met the client’s specifications. The customer then has the data to make an informed decision to accept or reject the lot.

Three types of defects are distinguished. For most consumer goods, the limits are:

  • 0% for critical defects (totally unacceptable: a user might get harmed, or regulations are not respected).
  • 5% for major defects (these products would usually not be considered acceptable by the end user).
  • 0% for minor defects (there is some departure from specifications, but most users would not mind it).

These proportions vary in function of the product and its market. Components used in building an airplane are subject to much lower AQL limits.

AQL Tables

Lot Size: The quantity of each product is a lot size, and it is advised to perform separate inspections for each lot.

Inspection Level:  Different inspection levels will command different numbers of samples to inspect.

Example:

For a hypothetical inspection of a production with 4,000 units, with an Acceptable Quality Limit of II, Table A indicates a general inspection level of “L”.

Referring to Table B row L. For a sample size of 200, with an AQL of 2.5, no more than 10 units may fail for a passed report.