To make the CNC machining process and parts more precise, manufacturers must find different variations of sources.
FREMONT, CA: A measurement system is a vital aspect of measuring and determining the quality and precision of parts. When manufacturers want to improve a process, it's crucial to be able to detect and measure any difficulties. The origin of the problem or error can then pinpoint and improvements made. Most of the error comes from not being able to reproduce results, for example. In that case, they can spend time and money training operators instead of trying to improve the measurement system.
Measurement system
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The first step is to ensure that the measuring system is accurate. One way to check this is by using gauge parts and calibration to ensure the measuring system is working well. Gauge parts are parts that are made to a known value with a high level of accuracy. The measuring system can calibrate with the help of gauge blocks, which should do regularly. Gauge repeatability and reproducibility (GR&R) and Measurement system analysis (MSA) are two ways developers often find measurement errors. These are important to follow because they will help get good data to find where measuring systems or parts are wrong.
Analysis of measurement system
A measurement system analysis is one of the statistical methods for determining how much the measuring process varies. Processes, people, equipment, and the environment are some of the things that can go wrong with measurements and cause more significant differences. If manufacturers can figure out which one is causing a much bigger part of the difference, they can fix that problem and be sure they're getting good measurements. Manufacturers want measures to be done repeatedly, to be stable, and not to have any bias. An MSA makes sure that measurements are on the right track.
Gauge repeatability and reproducibility (GR&R)
One type of MSA often used is to Gauge repeatability and reproducibility. Repeatability means that the operator can get the exact measurement on the same part over and over again. A reproducible measurement is one that more than one person can take in the same way and with the same accuracy. By figuring out how different one person's measurements are from those of others, they can figure out how different one part is from another.
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