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PFI Precision Machining has been providing the highest quality, on-time and most cost-effective custom-machined parts for over 50 years. In PFI Precision News, we share our expertise and industry news.  If you have any suggestions, share them.  Your input helps us make decision and continuously improve.  

You Need To Plan For Quality in Precision Machining

Posted by Colleen Janek on Sep 13, 2017 5:22:00 AM

Oasis Optical Inspection Equipment.jpg

Quality doesn't just happen. Accurately assessing each machined part's risk before it hits production is a key way to improve quality. Taking a look at internal capability and comparing that to the type of material, part application and tolerance requirements takes experience and sound processes to yield the best results. Developing a script for each part and machine ensures that every operator knows the details of this analysis and not only sets up the machine accordingly, but follows strict protocols for quality checks during production.

First, it's important to look at your equipment and your operators to match the order with the right equipment and skilled labor. Also, looking at the application of the finished product is as important as looking at the type of material that is used. Finally, honing in on the features of the part that are the tightest tolerance will help prioritize quality checks. Experience helps when determining which features are most likely to give an operator trouble. Following the APQP Standards, define which features need to be checked and then determine the number and how often parts are to be monitored. Depending on the specification, an operator may only have to check a few times per shift or as often as every ten minutes. If, at any time, a part is out of specification make adjustments, but more importantly track the parts back to determine all that deviated from specification.

Quality doesn't stop there, however. After a part's run, a predetermined quantity of finished parts needs to be inspected. The lot size determines that quantity and should be checked 100%. Utilizing a variety of inspection methods and equipment like micrometers, pin and thread gauges, and Oasis optical inspection systems, inspectors need to test every element of a finished part, ensuring that it meets not only tolerance standards but surface quality and hardness. 

Are you having quality problems with your parts supplier? Click below to get a quote for your project and see how PFI Precision Machining can solve your quality problem.

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Topics: Manufacturing, PFI Company News, Supply Chain, Quality

About PFI

PFI is a privately-held, woman-owned company located near Dayton, Ohio.  We are ISO 9001:2008 Certified and have a 99% on-time delivery record and excellent customer service.

We invest in competitive technologies and excellent cost control systems to provide our customers with high quality, cost-effective close-tolerance component parts and mechanical assemblies.  

With a staff of highly-skilled workers, over 50 years of custom machining experience and the confidence to take on your complex part projects, PFI is ready to be your custom machine shop. We look forward to being your first choice for your small-diameter machining needs. Learn more about our projects.

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