RTp – material ratio of the complete profile, % vfa – axial table feed speed while grinding, mm/s vfd – axial table feed speed while dressing, mm/s vs – grinding wheel peripheral speed, m/s vw – workpiece peripheral speed, m/s – angle of the grinding wheel conic chamfer, ° c Acronyms AFC – Abbott-Firestone Curve CBN – Cubic Boron Nitride CNC – Computerized Numerical Control GWAS – Grinding Wheel Active Surface SCGC – Symmetrical Curve of Geometrical Contact

### Biographical notes

Krzysztof Nadolny received his M.Sc. degree in Mechanics and Machine Design and next Ph.D (with honors) as well as D.Sc. degree in Machinery Construction and Operation from Koszalin University of Technology, in 2001, 2006 and 2013, respectively. Since 2006 he has been a researcher in the Department of Production Engineering at the Koszalin University of Technology, where currently he works as an associated professor and head of research-didactic team for production planning and control. His scientific interests focus on problems concerning machining processes and tools, efficiency, monitoring and diagnostics of machining processes as well as tribology. He has participated in 2 international and 3 national research projects, presenting results of his work at 10 international and 21 national conferences, published more than 180 scientific papers in international and national journals, book chapters, as well as conference proceedings. He is also the author of 4 monographs and 9 national patents. Wojciech Kapłonek received his M.Sc. degree in Mechanics and Machine Design (specialization: Computer Applications in Engineering) and Ph.D degree (with honors) in Machinery Construction and Operation (specialisa- tion: Technical Metrology) from Koszalin University of Technology, in 2003 and 2010, respectively. Since 2007 he has been a researcher in the Department of Production Engineering at the Koszalin University of Technology, where currently he works as an assistant professor. He has participated in 2 international and 3 national research projects, as well as presenting results from his work at 6 international and 28 national conferences. His scientific interests focus on problems concerning 2D-3D measurements of surface roughness using optical methods (especially those, which utilise light scattering phenomenon), SEM and confocal microscopy, machine vision systems, as well as image processing and analysis techniques. He has published more than 120 scientific papers in various international and national journals, book chapters, and conference proceedings. Nicolae Ungureanu received his MSc in Mechanical Engineering (specialisa- tion: mining machines and equipments) from Faculty of Mining Machines, Mining Institute of Petrosani in 1989, PhD from Technical University of Cluj Napoca in 1999 and Professor degree from North University of Baia Mare in 2004. Since 1994, after the work in SC SIMATEC SA, has been a Researcher for the Department of Engineering and Technology Management, North University of Baia Mare, where currently he works as a Professor and Dean of the Faculty of Engineering. His scientific interest are focused on issues related with reliability and maintenance of systems.

### References

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