Employee in the spotlight: David Schoř
10 May, 2022
We are immensely proud of the whole IGW team. We know that every individual contributes to the atmosphere, culture and performance of the company. From time to time, we like to zoom in on the job of a particular individual team member. This time, we’re zooming in on the profile of David Schoř.
David has been working for 16 years at IGW Brno. What makes David’s job so special, is that he is the first person certified to carry out the ultrasonic testing in Brno. With ultrasonic testing we can check if there are any breakages or inconsistencies on the inside of our metal parts like wheels, axles, couplings, …
David is level two certified to carry out ultrasonic testing. This means that he can inspect parts, but also make his own evaluations without someone else having to validate his findings.
Ultrasonic tests are carried out for all products after they leave production. David has been doing these tests for over 5 years for our axles, housings, couplings, etc. Since March 2022, David is also certified to do the ultrasonic testing of our service parts and overhauls. Thanks to this, IGW Brno is able to do ultrasonic testing for Czech Railway among other.
By having someone in house that is certified to do this, we don’t need to rely on third parties to perform the ultrasonic tests for us. This is very beneficial in time as well as cost.
How does ultrasonic testing work?
Right now, you might be thinking: “sounds great, but what does ultrasonic testing entail?” Well, ultrasonic tests are important to make sure a metal part is in fact completely intact and ready for delivery. It’s a form of material check where ultrasonic sounds are applied. This technique makes it able to locate breakages in the parts that are not visible on the surface of the material.
By the aid of an electronic device that produces high voltage electrical pulses and a special ultrasonic probe that transforms electrical energy from device to mechanical energy (vibration of material particles), we can introduce sound energy that propagates through the material in the form of waves.
When there is a discontinuity, like a crack, in the wave path, part of the energy will be reflected back from the flawed surface. This wave signal is transformed into an electrical signal by the transducer and is displayed on a screen. From this signal, we can track down the location, orientation, size and other features of the discontinuity in the material. We’re very happy to have David in our plant to ensure all our products are in the best shape for delivery!
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