Michał Leleń (born April 3, 1989, in Tomaszów) is deeply interested in various fields of mechanical engineering, including hydro-abrasive machining and CNC machine programming. He also has experience in CAD modeling and design. Between 2009 and 2019, he studied Mechanical Engineering and Machine Building at the Lublin University of Technology. After completing his studies, he permanently resided in Lublin. He worked in plants specializing in metal machining. Over the years, Michał Leleń has carried out a series of significant research. His publications in renowned journals demonstrate a profound understanding of mechanical engineering topics. For instance, papers such as "Analysis of Vibration, Deflection Angle and Surface Roughness in Water-Jet Cutting of AZ91D Magnesium Alloy and Simulation of Selected Surface Roughness Parameters Using ANN" and "Machine Tool Table Dynamics Tests when Starting and Braking during an Operation Test" show an advanced approach to the research and analysis of engineering challenges.