What Is Universal Testing Machine Calibration? And What Is Its Significance?

universal testing machine

When calibrating a Universal Testing Machine (UTM), there are many factors that need to be considered. You must validate the accuracy of your UTM instruments during this process.

It is important to decide if calibration should be done in tension or compression. You can also do it both ways. In addition, it’s important to calibrate and inspect the instruments that measure force and displacement.

You will also need to determine the machine’s load capacity. Plus, it is necessary to determine whether an extensometer calibration is required.

The performance of the UTM being tested is compared with another machine that has passed calibration. The results are then compared to a specific standard such as one prescribed by the National Institute of Standards and Technology (NIST).

What is a Universal Testing Machine (UTM), and how do you use it?

UTMs can be used to measure both the compressive and tensile strengths of materials. Tensometers are something you may have heard of before. This is another name used for tensile testing devices.

Because of the added functionalities that make it more versatile, the word “universal” has been added to its name. UTMs can perform compression and tensile testing on many structures, components, and materials.

Significance of UTM calibration

UTM calibration aims to minimize the uncertainties in test results. You can calibrate a tensile test machine to ensure that the results are accurate. And it is also in line with industry standards.

UTMs are used mostly in the quality control stage of production. UTMs are used by many companies to verify a material’s quality. This is a critical step since the QA testing is done right before distributing the materials.

The test results for a product should be within an acceptable range of limits for it to pass the test. This helps to ensure that specifications published by manufacturers are unfailingly met.

Tensile testers can be used to verify certain strain certificates. This includes the extension, compression, and bend of certain types of materials. After a UTM is calibrated, you can be sure that it will produce the results you need without errors.

Up-to-date calibrations reduce the possibility of manufacturing errors. Your research and development team will also need to have access to the test results. Inaccuracies in test specimens could lead to incorrect conclusions about materials or products. This could even lead to design flaws that no one expects.

It is, therefore, important to calibrate universal testing machines regularly. 

Note that manufacturing systems and calibration certificates are intended to expire after a specific time. It is possible that tensile tests and other instruments have become inaccurate as a result of regular use. This happens to all machines eventually. And that is why they must invariably be calibrated regularly.

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