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Wojciech Kapłonek, Krzysztof Nadolny and Grzegorz M. Królczyk

References [1] Wang, L., Gao, R.X. (Eds.) (2006). Condition Monitoring and Control for Intelligent Manufacturing. Springer. [2] Wegener, K., Hoffmeister, H.W., Karpuschewski, B., Kuster, F., Hahmann, W.C., Rabiey, M. (2011). Conditioning and monitoring of grinding wheels. CIRP Annals-Manufacturing Technology, 60 (2), 757-777. [3] Darafon, A., Warkentin, A., Bauer, R. (2013). Characterization of grinding wheel topography using a white chromatic sensor. International Journal of Machine Tools and Manufacture, 70

Open access

Radosław W. Maruda and Natalia Szczotkarz

(2015)249-255. [13] Kupczyk M.J., Komolka J.,High durability of cutting insert edges made of nanocrystalline cemented carbides, Int J Refract Met Hard Mater, 49, 1(2015)225-231. [14] Kümmel J., BraunD., GibmeierJ., SchneiderJ., GreinerC., SchulzeV., WannerA.,Study on micro texturing of uncoated cemented carbide cutting tools for wear improvement and built-up edge stabilisation, J Mater Process Technol,215(2015)62-70. [15] Deeming A.P., Munz W.D., Smith I.J.,Dry high performance machining (HPM) ofdie and mouldsusing PVD coated solid cemented carbide

Open access

D. Pakuła, M. Staszuk, K. Gołombek, A. Śliwa and J. Mikuła

REFERENCES [1] M. Odén, J. Almer, G. Hakansson, M. Olsson, Thin Solid Films, 377-378 , 407-412 (2000). [2] E. Broszeit, C. Friedrich, G. Berg, Surf. Coat. Techn. 115 , 9-16 (1999). [3] P. Bílek, P. Jurči, M. Hudáková, M. Pašák, M. Kusý, J. Bohovičová, Appl. Surf. Sci. 307 , 13-19 (2014). [4] L.A. Dobrzański, D. Pakuła, J. Mikuła, K. Gołombek, Int. J. Surface Science and Engineering, 1 (1), 111-124 (2007). [5] L.A. Dobrzański, D. Pakuła, Mater. Sci. Forum. 513 , 119-133 (2006). [6] L.A. Dobrzański, M. Staszuk, K. Gołombek

Open access

Z. Gronostajski, M. Hawryluk, M. Kaszuba, P. Widomski, J. Ziemba and J. Smolik

Abstract

This study is focused on tools used in the industrial process of hot forging of a front wheel forging (gear wheel) manufactured for the automotive industry. Five different variants were applied for the tools: 3 die inserts were coated with three different hybrid layers (PN + PVD type), i.e. AlCrTiN, AlCrTiSiN and CrN, one insert was only nitrided, and one was pad welded, to improve tool durability. The tool wear was analysed and represented by the material degradation on the working surface, based on the 3D scanning and the material growth of the periodically collected forgings. Additionally, the scanned tools were divided into two areas, in which it was found, based on the analysis, that various degradation mechanisms are predominant. Microstructural tests and hardness measurements of the analyzed tools were also performed. Based on the results, it was found that, in the central part of the die insert, thermo-mechanical fatigue, abrasive wear and plastic deformation occurred, while in the area of the bridge insert, only abrasive wear could be observed. For these areas, the loss of material was determined separately. It was established that the use of the GN+CrN and GN+AlCrTiN hybrid layers on forging tools improves their durability, while the best results in the central area were observed on the tool with the GN+CrN layer, which is the most resistant to thermo-mechanical fatigue. In the second analyzed area, good wear resistance occurred on GN+CrN, GN+AlCrTiN and pad welded inserts, for which, together with the increase of the forging number, a proportional, slight growth of the loss of material occurred.

Open access

M. Sangeetha and S. Prakash

Technology 196, 332-338 (2008). [14] G. Tosun, M. Muratoglu, Composites Science and Technology 64, 299-308 (2004). [15] J.P. Davim, A. Monteiro Baptista, Journal of Materials Processing Technology, Elsevier Sc. 103, 417-423 (2000). [16] J.P. Davim, C.A. Conceicao Antonio, International Journal of Machine Tools and Manufacture, Elsevier Sc. 41, 21-31(2001). [17] M. Ramulu, P.N. Rao, H. Kao, Journal of Materials Processing Technology 124, 244-254 (2002). [18] B.M. Umesh Gowda, H.V. Ravindra, H

Open access

Anna Zawada-Tomkiewicz and Ryszard Ściegienka

References Grzesik, W., Rech, J., Wanat, T. (2007). Surface finish on hardened bearing steel parts produced by superhard and abrasive tools. International Journal of Machine Tool & Manufacture , (47), 255-262. Lewkowicz, R., Kacalak, W., Ściegienka, R., Bałasz, B. (2009). The new methods and heads for precision microfinishing with application of microfinishing films. Proceedings of the 5th International Congress on Precision Machining ICPM 2009. Mezghani, S., El Mansori, M

Open access

L. Żukowska, J. Mikuła, M. Staszuk and M. Musztyfaga-Staszuk

REFERENCES [1] L. Żukowska, Structure and properties of gradient PVD coatings deposited on the sintered tool materials, PhD thesis, Institute of Engineering Materials and Biomaterials, 2010. [2] G.E. D’Errico, R. Calzavarini, B. Vicenzi, Influences of PVD coatings on cermet tool life in continuous and interrupted turning, Journal of Materials Processing Technology 78 , 53-58 (1998). [3] J. Gu, G. Barber, S. Tung, R.J. Gu, Tool life and wear mechanism of uncoated and coated milling inserts, Wear 225-229 , 273-284 (1999). [4] Li Chen, S

Open access

Z. Gronostajski, M. Kaszuba, H. Paschke, T. Zakrzewski and G. Rogaliński

REFERENCES [1] M. Hawryluk, M. Marcinka, G. Misiun, Possibilities of investigating abrasive wear in conditions close to those prevailing in industrial forging processes, Eksploatacja i N iezawodnosc – Maintenance and Reliability 16 , 4, 600-607 (2014). [2] Z. Gronostajski, M. Kaszuba, M. Hawryluk, M. Marciniak, M. Zwierzchowski, A. Mazurkiewicz, J. Smolik, Improving Durability of Hot Forging Tools by Applying Hybrid Layers, Metalurgija 54 , 4, 687-690 (2015). [3] T. Altan, G. Ngaile, G. Shan, Cold and hot forging: fundamentals and application

Open access

T. Teker, S Karataş and S. O. Yilmaz

References [1] R.L. Deuis, J.M. Yellup, C. Subramanian, Metal-matrix composite coatings by PTA surfacing, Compos. Sci. Technol. 58 , 299 (1998). [2] L.P. Connor, Welding Handbook. (eighthed.), American Welding Society, Miami, Fl 1 , 11 (1987). [3] E. Bourithis, A. Tazedakis, G. Papadimitriou, A study on the surface treatm ent of “Calmax” tool steel by a plasma transferred arc (PTA) process, J. Mater. Process. Technol. 128 , 169 (2002). [4] M. Yan, An experimental study of the remelting of an Fe-C-Cr-Si-B overlay with a micro beam plasma arc, Surf

Open access

Rafał Chodun, Katarzyna Nowakowska-Langier and Krzysztof Zdunek

-maximum (FWHM) of the Bragg diffraction peak at angle 2θ. Current-voltage waveform studies were carried out with the use of Agilent 8000 Series Infiniium oscilloscope and with a Rogowski coil as a current probe with sensitivity set to 1kA:1V and voltage probe with sensitivity set to 1:1000. Cutting inserts made of HS 6-5-2 (SW7M) high-speed steel were used for the investigation of anti-abrasive properties of the TiN coatings deposited by the modified IPD method. Before deposition, the insert edges were polished to R a = 0.2 µm. The durability studies of the tools have