Impact of Tool Magnetization on Changes in the Surface Layer of Forging Tools

• Autorzy: Zwierzchowski M.

Identyfikatory

DOI

10.24425/amm.2019.126254

• Języki publikacji: EN

Abstrakty

EN

The paper presents a description of the phenomena occurring on the surface of the forging dies. A detailed analysis was made of 24 pre-forging dies due to the most intensive wear in this operation. To compare the results, new tools were also analysed. The research described in the study showed that the most dangerous factor for the hot forging process analysed is thermal-mechanical fatigue, which causes small cracks, which in turn quickly leads to the formation of a crack network on the entire contact surface of the tool with forged material. The second phenomenon is the tempering of the surface of the material for a long-term temperature effect. The presence of hard iron oxides in the form of scale from forging material is the accompanying phenomenon that intensifies the processes of tool wear. The paper presents the results of the analysis of the presence of residual magnetic field for forging tools and the results of laboratory tests of wear processes of tool steels for hot work in the presence of a magnetic field and in the presence of scale.

Słowa kluczowe

EN

hot die forging; wear mechanism; magnetic field; durability

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2019
• Tom: Vol. 64, iss. 1
• Strony: 317--324
• Opis fizyczny: Bibliogr. 10 poz., fot., rys., wykr.

Twórcy

autor

Zwierzchowski M.

• Wroclaw University of Science and Technology, Department of Metal Forming and Metrology, 5 Lukasiewicza Str., 50-371 Wrocław, Poland

Bibliografia

• [1] Z. Gronostajski, M. Hawryluk, M. Kaszuba, M. Marciniak, A. Niechajowicz, S. Polak, M. Zwierzchowski, A. Adrian, B. Mrzyglod, J. Durak, The expert system supporting the assessment of the durability of forging tools, International Journal of Advanced Manufacturing Technology 82 (9), 1973-1991(2016).
• [2] M. Zwierzchowski, M. Hawryluk, Structural analysis of hot forging dies with regard to their life. Maintenance and Reliability 2, 31-41 (2009).
• [3] M. Zwierzchowski Analiza metod badania odporności na zmęczenie cieplne, Współczesne technologie w budowie maszyn. Lublin 147-152 (2002).
• [4] T. Altan, Cold and hot forging fundamentals and application, ASM Internation, 2005, Ohio,
• [5] J. H. Kang, I. W. Park, J. S. Jae, S. S. Kang, A study on die wear model considering thermal softening (II):Application of the suggested wear model, Journal of Materials Processing Technology 96 (1) 53-58 (1999).
• [6] J. H. Kang, I. W. Park, J. S. Jae, S. S. Kang, A study on a die wear model considering thermal softening: (I) Construction of the wear model, Journal of Materials Processing Technology 96, 53-58 (1999).
• [7] Z. Gronostajski, M. Kaszuba, P. Widomski, J. Smolik, J. Ziemba, M. Hawryluk, Analysis of wear mechanisms of hot forging tools protected with hybrid layers performed by nitriding and PVD coatings deposition, Wear 420-421, 269-280 (2019).
• [8] Q. Zhou, R. Xu, The action and analysis of magnetic field on the lubricants and wear products in the process of wearing, Science in China (Series A) 44, 267-272 (2001).
• [9] A. F. Yetim, H. Kovaci, M. Aslan, A. Celik, The effect of magnetic field on the wear properties of a ferromagnetic steel, WEAR 301 (1-2), 636-640 (2013).
• [10] M. Hawryluk, Z. Gronostajski, P. Widomski, M. D. Kaszuba, J. Ziemba, J. Smolik, Influence of the application of a PN+Cr/CrN hybrid layer on the improvement of the lifetime of hot forging tools, Journal of Materials Processing Technology 258, 226-238 (2018).

Uwagi

EN

1. This research was carried out as part of project TECHMATSTRATEG1/348491/10/NCBiR/2017.

PL

2. Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).