Your measurements should be in line with your design criteria

By OEM Update Editorial August 2, 2021 2:26 pm IST

Anything you manufacture should be measured 100 percent and should be traceable.

Share your perspective about components specific measurements challenges and solutions as well as new trends in metrology.

So, what you manufacture you need to measure and based on the feedback of measurements, you need to see how you proceed further. So, this gives me an excellent platform to continue once you have manufacturing then you have measurements, which is one of the most important criteria and just for the introduction on the aerospace industry.

Aerospace industry generally is categorised in three ways, you have commercial, defence and space as we all know, there’s also a fourth one, which is MRO where measurements are important, but it doesn’t take so much of lag as these three industries. But when you when you have these three industries, what’s common in these three industries is there are certain set of parts, these are very common aerostructures, propulsion system services, all these things are common, most of the parts are there, these are manufactured parts either by in-house people are the main OEMs outsource it to different countries to find good type of vendors. Now, these are very critical and require 100 percent inspection.

So, as we know in aircraft components or in aerospace industry, anything you manufacture should be measured 100 percent and also should be traceable, for any future traceable by other customers and for any future problems to be found. So, coming to this when seven parts are manufactured there, each part has a certain way for measurements. For example, if you see is a cross sectional view of a jet engine and you have different stages where each stage has blades and each blades play a very important role in generating power, which is really mandatory, and the quality of these blades should be very good as you all know, because any drop in problems can result in less energy. So, to take the output of maximum energy, your measurements should be in line with your design criteria. You have different types of blades available. In a jet engine, you have weather metal leading edge your compressor air foils your turbine, turbine, air foils and also bladed rotors, different types suited for different functions which has been efficient. So, are these just to give an example when you manufacture a blade to a supplier they’re sort of parameters twist angle, the leading-edge trailing edge all these are very important parameters in functioning of a blade.

Now we’ll have to see on how do you measure it, this is where we come in as expertise before measurements as you all know you need to have fixtured kit which is one of the most important things when before you do measurements, you have some different sizes depending on the different depending on the size of the blade you have these fixtures which are used. And once you have these fixtures, it can be mounted on a rotary table, you could have a contact based CMM which are used and the different type of sensors you have. These are called sensors or probes. Based on the quality requirements, whether it’s accurate bite size accurate medium accurate accuracy or high accuracy you can use different type of sensors.

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