Research of thermal processes in cutter edge made of HS 3-1-1,5 low-alloyed high-speed steel

• Autorzy: Jaworski J.
• Języki publikacji: EN

Abstrakty

EN

Purpose: The physical and mathematical description of tools wear during technological process and need to the enlarge tool life require knowledge of material data, e.g. density, specific heat and coefficient of thermal conductivity. A formation of heat during tool work and increase of cutting edge temperature are results of friction between tool and stock. The distribution of temperature in cutting edge material during machining can be defined in selected places with the use of thermocouple. The measurement of arisen heat during machining is determined by analytic way as a measured temperature distribution and the thermal properties of cutting edge and work piece, which are known. The knowledge of temperature distribution and thermal flux process, which accompanies to, is the one of the factors influencing on reach the conclusions in relation to describe wear and suggestion to increase tool life. Design/methodology/approach: The results of investigations of the temperature field in cutter edge of cutters made of HS 3-1-1,5 and HS 6-5-2 low-alloyed high speed steel and the coefficient of thermal conductivity of listed kinds of steels to determinate their effective use on cutting tools were described. Findings: Decreasing of contents of alloy addition did not significantly affect the thermal and physical properties changes of SW3S2 steel. Research limitations/implications: To ensure applicable quality requirements during production of tools made of low-alloyed high-speed steels, it is very important so that their cutting ability will not be lower than analogical tools made of classic high-speed steels. It requires establishing such good work conditions in case to be competed effectively with classic high-speed steels. Practical implications: The obtained results of investigation showed, that decreasing contents of alloy addition did not affect the thermal and physical properties changes of HS 3-1-1,5 steel. Originality/value: The carried out investigation showed, that the cause of lower durability of cutters should be sought in lower temperability of HS 3-1-1,5 low-alloyed high-speed steel.

Słowa kluczowe

EN

high-speed steel; temperature field; thermal conductivity

PL

stal szybkotnąca; pole temperatur; przewodność cieplna

• Wydawca: International OCSCO World Press
• Czasopismo: Archives of Materials Science and Engineering
• Rocznik: 2009
• Tom: Vol. 39, nr 2
• Strony: 84--87
• Opis fizyczny: Bibliogr. 15 poz.

Twórcy

autor

Jaworski J.

• Department of Manufacturing Processes and Production Organization, Rzeszow University of Technology, ul. W. Pola 2, 35-959 Rzeszów, Poland,

Bibliografia

• [1] K. Lukaszkowicz, L.A. Dobrzański, M. Staszuk, M. Pancialejko, Comparison of the PVD gradient coatings deposited on to X40CrMoV5-1 and HS 6-5-2 tool steel substrate, Journal of Achievements in Materials and Manufacturing Engineering 27/1 (2008) 79-82.
• [2] L.A. Dobrzański, K. Gołombek, J. Mikuła, D. Pakuła, Multilayer and gradient PVD coatings on the sintered tool materials, Journal of Achievements in Materials and Manufacturing Engineering 31/2 (2008) 198-207.
• [3] A. Berkowski, Wrought high-speed steels. IOP, Poznań 1994 (in Polish).
• [4] L.A. Dobrzański, Fundamentals of materials science, WNT, Warsaw, 2002 (in Polish).
• [5] J. Jaworski, Determination of criterion on blunting of drills made of low-alloy high speed steel, Archives of Foundry 8 (2008) 157-160 (in Russian).
• [6] A.S. Ochotin, Thermal conductivity of solid bodies, Energoatomizdat, Moscow, 1984 (in Russian).
• [7] V.F. Bobrov, Fundamentals of theory of metal machining, Maszinostrojenie, Moscow, 1995 (in Russian).
• [8] J. Jaworski, Influence of temperature factor on durability of cutter edge of cutter made of low-alloyed high-speed steels, Archives of Mechanical Technology and Automatization 21 (2001) 23-30 (in Polish).
• [9] R.T. Faria, M.F. Rodrigues, A. Esqef, H. Vargas, M. Filgueria, On the thermal characterization of a HPHT sintered WC-15% wt Co hard metal alloy, International Journal Refractory Metals and Hard Materials 23 (2005) 115-118.
• [10] W.S. Williams, The Thermal Conductivity of Metallic Ceramics, JOM 50 (1998) 62-66.
• [11] J. Jaworski, Investigation of temperature profile in the cutting edge of a turning tool made of low-alloyed high-speed steel, Proceedings of the International Scientific Conference "Mechanics 98", Rzeszów, 1998, 305-308 (in Polish).
• [12] V.A. Sinopalnikov, V.D. Gurin, Distribution of temperature in the zone of cutting edge of tool made of high-speed steel, Vestrik Maszinostrojenia 1 (1997) 51-54 (in Russian).
• [13] F. Wolańczyk, Quasi-stationary method for measurement of thermal conductivity of metals and their alloys, Proceedings of the Polish Academy of Sciences 3rd Symposium "Heat and Mass Transfer", Białowieża, 1992, 517-524 (in Polish).
• [14] T.F. Fodemski, Thermal measurements, vol. I. WNT, Warsaw, 2001 (in Polish).
• [15] F. Wolańczyk, Definition of thermal properties of low-alloyed high-speed steels SW7M and SW3S2, Proceedings of the International Scientific Conference "Mechanics 98", Rzeszów, 1998 (in Polish).