Conclusions
-
1.
A study was made of the contact phenomena occurring during the electromachining of the transition metals with some refractory compounds (carbides and borides). The relationships between tool electrode wear and the moduli of elasticity and thermal conductivities of materials machined are examined. It is shown that, as these parameters increase, the propensity toward seizure diminishes as a result of an increase in the strength of atomic bonds in the lattice and a fall in temperature in the contact zone.
-
2.
The correlation is analyzed between the wear of the tool electrode and the degree of localization of valence electrons in the material being machined. It is demonstrated that, with rise in the degree of localization, the propensity toward seizure decreases. The propensity toward seizure of tool electrode materials is a measure of their ability to yield electrons. For the carbides investigated, the order of donor capacities is WC> NbC> TiC. Titanium diboride occupies an intermediate position between niobium and titanium carbides.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
Literature cited
B. M. Askinazi, Reinforcement and Reclamation of Machine Parts by Electromachining [in Russian], Mashinostroenie, Leningrad (1968).
G. V. Samsonov and M. S. Koval'chenko, Hot Pressing [in Russian], Gostekhizdat UkrSSR, Kiev (1962).
A. V. Paustovskii, Poroshkovaya Met., No. 4 (1970).
G. V. Samsonov and A. V. Paustovskii, Dopovidi Akad. Nauk UkrRSR, Ser. A, No. 12, 1101 (1971).
A. P. Semenov, Friction and Adhesional Reaction of Refractory Materials at High Temperatures [in Russian], Nauka, Moscow (1972).
N. L. Golego, Metal Scizure Processes Induced by External Friction [in Russian], Doctoral Dissertation, KPI, Kiev (1963).
G. V. Samsonov, Ukr. Khim. Zh.,31, 1233 (1965).
G. V. Samsonov, Poroshkovaya Met., No. 12 (1966).
G. V. Samsonov, I. F. Pryadko, and L. F. Pryadko, Configurational Model of Matter [in Russian], Naukova Dumka, Kiev (1971).
A. L. Burykina and G. V. Samsonov, Mashinovedenie, No. 3 (1970).
M. P. Arbuzov and B. V. Khaenko, Poroshkovaya Met., No. 3 (1966).
A. G. Turchanin, An Investigation of the Thermodynamic Properties of Carbides in Their Homogeneity Range at High Temperatures [in Russian], Candidate's Dissertation, IPM AN UkrSSR, Kiev (1968).
E. W. Engle, in: J. Wulff, ed., Powder Metallurgy Am. Soc. Metals, Cleveland, Ohio (1942), p. 436.
T. Ya. Kosolapova, Investigations in the Field of Carbide Technology and Chemistry [in Russian], Doctoral Dissertation, IPM AN UkrSSR, Kiev (1971).
G. V. Samsonov, in: Refractory Carbides [in Russian], Naukova Dumka, Kiev (1970), p. 9.
G. V. Samsonov, Electron Technol.,3, No. 1/2, 9 (1970).
Author information
Authors and Affiliations
Additional information
Translated from Poroshkovaya Metallurgiya, No. 5 (149), pp. 82–86, May, 1975.
Rights and permissions
About this article
Cite this article
Samsonov, G.V., Paustovskii, A.V. Wear of refractory tool electrodes in electromachining. Powder Metall Met Ceram 14, 410–413 (1975). https://doi.org/10.1007/BF00807816
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00807816