The Seebeck Effect on the Thermal Phenomena of Cutting and Tool Wear

Abstract:

It is a well-known fact that thermoelectric currents, reaching even the scale of ampere, develop during chip formation in the workpiece-tool-chip-machine system. The impact of these currents on tool wear in continuous cutting was examined with a qualitative mathematical model, in which wear is described by an autonomous non-linear differential equation.The constants of the model were tailored to wear curves determined by experiments conducted with a P20 carbide tool on a C45 quality steel workpiece. The differences among the tool isolation measurement results obtained by various researchers may be justified by simulation calculations.According to the model, the thermoelectric system behaves in a chaotic way in certain cases. Further research is necessary to decide if this is only a special characteristic of the model or the model shows the actual processes.

• Periodical: Materials Science Forum (Volume 885)
• Pages: 42-47
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.885.42
• Online since: February 2017
• Authors: Zoltán Pálmai*, László Csobod
• Keywords: Cutting, Electrical Current, Tool Wear

References

[1] Pálmai, Z., Formation of non-metallic protective layers on high-speed steel tools. Metal Technology Vol. 11. (1984) 34-37.

DOI: 10.1179/030716984803274422

[2] Küsters, K. J: Temperaturen im Schneidkeil spanender Werkzeuge, Dissertation 1956. Technische Hochschule, Aachen.

[3] Opitz, H., About Wear on Cutting Tools, Proc. Conf. Lubrication and Wear, Inst. Mech. Engrs., London, Oct., 1957, p.664.

[4] Ellis, J., G. Barrow, Tool Wear in Metal Cutting and its Relationship with the Thermo-Electric Circuit, Annals of the CIRP, Vol. 17. (1969) pp.39-50.

[5] Dubrov, J.C., G.C. Nikolaeva, V.C. Filolenko, K voprosu o fizitheskoi vliania thermoelektritheskih iavlenia na processa trenia i rezania metallov. Izdatlestvo Nauka, 1973, Moskow.

[6] Shan, H.S., P.C. Pandey, Wear of cutting tools: thermo-electric effects. Wear, 32 (1975) 167-179.

DOI: 10.1016/0043-1648(75)90265-3

[7] Uehara, K., M. Sakurai, T. Ikeda, On the Problem of Thermoelectric Current in Metal Cutting, Annals of the CIRP Vol. 41/1/1992. pp.75-78.

DOI: 10.1016/s0007-8506(07)61156-1

[8] Csobod L., A forgácsolás hőjelenségeinek vizsgálata szakaszos forgácsleválasztásnál, a termoelektromos jelenség felhasználásával. Dissertation. University os Miskolc. 1983. (The examination of the thermal phenomena of cutting in intermittent chip formation using the thermoelectric phenomenon).

[9] Pálmai, Z., Proposal for a new theoretical model of the cutting tools flank wear. Wear 303 (2013) 437-445.

DOI: 10.1016/j.wear.2013.03.025