«

»

Jun
08

Product Inspection Strategy

A frequent question account managers receive is how to employ an inspection strategy to identify issues early and continue to ensure that product meets specifications.  Most agree that the tangible and intangible costs associated with poor quality support a preemptive strategy. The answer isn’t necessarily a simple one due to the variances involved in product specific requirements.  But, a general method of attack is suggested here:

 

Inspection Plan Development
A good plan is only as good as its foundation, so a comprehensive and detailed product specification is critical to the success of the overall strategy.  Pro QC often assists clients with this documentation creation and also uses it internally to direct engineers on-site.  A good plan incorporates anything that will affect the salability and performance of the product.

 

First-Article Inspections
Pro QC inspects first-article samples prior to volume production.  That means the product specifications are being met and reengineering won’t be necessary at an inconvenient point of time in the future.

 

In-Process Inspections
These on-site inspections evaluate samples of your products selected during the manufacturing process.  It confirms the quality of your product and allows any necessary changes to be addressed early on.  Incorporating these inspections reduces rework time and costs.

 

Pre-Shipment Inspections
During a pre-shipment inspection, engineers verify that the finished goods confirm to your specifications.  A representative sample is chosen randomly from the lot using a sampling plan such as ANSI Z1.4. The criteria is used to determine sampling levels and accept/reject determinations.

 

Inspection schedules are dependent on factors such past performance, so costs associated with preventative action are also reduced as performance becomes predictable and/or stable.  Continuous improvement and consistent results means investing in quality throughout the process and avoiding associated risks and cost in the future.

4 comments

1 ping

  1. Marco Arellano says:

    If I need to do an In-Process Inspections.Whats the best way to do it, I mean what percentage of the whole production I have to take as an example to see if what I am making it is correct?

    1. jennifer says:

      In-process inspections usually occur when production is about 50% complete. The standard sampling can be adjusted based on the ANSI Z1.4 tables and your level of confidence in the product. A General Level 2 visual inspection is common, with a Special Level 3 functional evaluation. Let us know if this does not answer your questions. You can view the tables here and even download the sampling app we made: http://proqc.com/quality-resources/ansi-sampling-tables

  2. Nyasha Mariga says:

    explain to me how can i employ in process inspection in tent manufacturing

  3. Annex Asia says:

    Discuss the project with employ and find out the solution then you know it how to process and how much product manufacture.

  1. Tips on quality from Bentley » When Quality Matters says:

    […] From a previous post: […]

Leave a Reply

Your email address will not be published.

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>