Study of Physical and Mechanical Properties of Steel During Grinding and Sharpening

• Autorzy: Biały Witold , Ivanova Tatiana Nikolaevna , Žarnovský Jozef , Ružbarský Juraj

Identyfikatory

DOI

10.2478/mape-2020-0011

• Języki publikacji: EN

Abstrakty

EN

A direct influence on the physical and mechanical state of the surface layer of wedge-shaped plates made of 8KHF steel is exerted by heat generation processes developing in the zone of a high-speed thermal process. Research on the influence of the parameters of a high-speed thermal process on the change in the structure of 8KHF steel (GOST 5950-2000 Russia, standard PN/H 85023 brand NCV1 Poland) was fulfilled. It allowed studying the nature of the change in the microstructure depending on short-term heating to various temperatures and rapid cooling. As a result, critical points of the beginning and the end of structural transformations during heating were determined. Research on thermal processes in a high-speed thermal process made it possible to establish regularities of influence of cutting speed, source speed, contact area, coolant properties and heat transfer coefficient on the temperature and rate of thermal processes in surface layers, as well as their impact on the depth of heating to a certain temperature. The study also allowed us to show the relationship between temperature and rates of heating and cooling. The solution to this problem, taking into account the action of the cooling fluid, gives the opportunity to bring the picture of the development of thermal processes closer to real conditions and makes it possible to reasonably predict the structural state of the surface layer of wedge-shaped parts made of 8KHF steel under various conditions of a high-speed thermal process.

Słowa kluczowe

EN

steel 8KHF; sharpening; edge; thermal deformation; structural transformations; thermal process

• Wydawca: STE GROUP ; De Gruyter
• Czasopismo: Multidisciplinary Aspects of Production Engineering
• Rocznik: 2020
• Tom: Vol. 3, Iss. 1
• Strony: 128--140
• Opis fizyczny: Bibliogr. 10 poz., fig., tab.

Twórcy

autor

Biały Witold

• Silesian University of Technology Poland

autor

Ivanova Tatiana Nikolaevna

• Tchaikovsky Branch “Perm National Research Polytechnic Institute” , Russia
• Federal State Budgetary Institution of Science “Udmurt Federal Research Center of the Ural Branch of the Russian Academy of Sciences“ Institute of Mechanics, Russia

autor

Žarnovský Jozef

• Slovak University of Agriculture, Slovak Republic

autor

Ružbarský Juraj

• Technical University of Kosice, Slovak Republic

Bibliografia

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• 3. Milewski, P. (2009). Modernizacja systemu chłodzenia wtryskarek linii technologicznej przetwórstwa tworzyw sztucznych – część II. Technika chłodnicza i klimatyzacyjna, No 10, pp. 368-370.
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• 6. Regulation no 517/2014 of the European Parliament and of the Council, on fluorinated greenhouse gases and repealing Regulation (EC) No 842/2006.
• 7. www.lowara.com/2017/05/08/how-to-calculate-life-cycle-cost-payback-times.
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