Conclusions
-
1.
We have developed a thermomechanical model of recovery of worn parts of a void-cylinder type made of iron-carbon alloys by thermoelastoplastic deformation, which makes it possible to predict the stress-train state of the restored part theoretically.
-
2.
The statement of problems of thermoelastoplasticity and their numerical realization by the method of finite elements with virtual coincidence of the calculated and experimental data has shown that the shrinkage of cylinder sleeves of tractor diesels with an internal diameter of 100–130 mm amounts to 0.7–1.2 mm over the diameter.
-
3.
It is expedient to restore internal cylindrical surfaces, such as sleeves of cylinders of tractor engines produced from a special alloy cast iron, by creating a temperature gradient over the axis of the sleeve with heating and subsequent cooling of a local circular part of the cylinder. The heating is conducted to a temperature below that of the phase transformations (760–780°C). The optimum speed of displacing the inductor and the sprayer relative to the sleeve is 1–2 mm/sec.
Similar content being viewed by others
References
V. N. Khromov, “Restoring piston pins of internal combustion engines,”Mashinostroenie, No. 1, 31 (1987).
V. N. Khromov, S. M. Shaporenko, and V. M. Mamontov, “Restoring worm surfaces of machine parts and tools by thermoplastic deformation,”Vestn. Mashinostr., No. 5, 52–53 (1991).
V. N. Khromov, “Technology of repeated restoration of tractor diesels by thermoelastoplastic deformation,”Izv. Vuzov. Mashinostr., No. 7-9, 77–81 (1996).
Djahanjan, Sabbahjan, “Thermoelastoplastic and residual stresses in a void cylinder from a material with temperature-dependent properties,”Trans. ASME. Ser. B, No. 7, 69–76 (1990).
Li, Chjen, “Modelling the quenching process for calculating the distribution of residual stresses and microstructure,”Trans. ASME, Ser. B, No. 8, 13–20 (1989).
V. G. Leshkovtsev and A. M. Pokrovskii, =ldAlgorithms for solving problems of thermoelastoviscoplasticity based on the finite-element method (MKE) with allowance for structural transformations,”Izv. Vuzov, Mashinostroenie, No. 5, 12–16 (1988).
V. G. Leshkovtsev, A. M. Pokrovskii, and V. N. Boikov, “Mathematical modelling of the transformation of supercooled austenite in eutectoid steels,”Metalloved. Term. Obrab. Met., No. 1, 17–19 (1988).
V. N. Khromov, I. K. Senchenkov, L. G. Vikhrova, and V. A. Zozulya, “Theoretical prerequisites for automation and control of the technology of restoring and hardening of parts. Material science and repair of agricultural equipment,” in:Trudy Tavricheskoi Gos. Agrotekh. Akademii, Vol. 1, Issue 3 [in Russian], TGATA, Melitopol (1997), pp. 59–68.
I. K. Senchenkov, V. N. Khromov, A. I. Semenenko, et al., “A method for thermoplastic deformation: An ecologically pure and reosurce-saving method for restoring parts,”Ekotekhnol. Resursosber., No. 5, 25–31 (1997).
S. R. Bodner and Y. Partom, “Constitutive equations for elastoviscoplastic strain hardening material,”Trans. ASME. J. Appl. Mech., No. 42, 385–389 (1975).
Chjan, Bodner, et al., “Phenomenological modeling of hardening and thermal return in metals,”Teor. Osn. Inzh. Rasch., No. 4, 1–14 (1988).
I. A. Motovilovets and V. I. Kozlov,The Mechanics of Connected Fields in Structural Components. Thermoelasticity [in Russian], Vol. 1, Naukova Dumka, Kiev (1987).
A. A. Dinnik, “True yield limits in steel at a high temperature and deformation rate,” in:Pressure Treatment of Metals [in Russian], Trudy Dnepropetrovsk. Metallurg. Inst., Issue 39, Dnepropetrovsk (1960), pp. 311–327.
P. I. Polukhin, G. Ya. Gun, and A. M. Galkin.Resistance to Plastic Strain in Metals and Alloys, A Handbook [in Russian], Metallurgiya, Moscow (1983).
I. V. Kudryavtsev (ed.),Materials in Machine Building. Structural Steel [in Russian], Vol. 2, Mashinostroenie, Moscow (1967).
I. K. Senchenkov and G. A. Tabieva “Determination of parameters of the Bodner-Partom model of thermoviscoplastic deformation of metals,”Prikl. Mekh.,32(2), 64–72 (1996).
Author information
Authors and Affiliations
Additional information
Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 5, pp. 24–28, May, 1999.
Rights and permissions
About this article
Cite this article
Khromov, V.N., Senchenkov, I.K. Modeling the process of thermoelastoplastic deformation for calculating the distribution of residual stresses and strains. Met Sci Heat Treat 41, 218–222 (1999). https://doi.org/10.1007/BF02468423
Issue Date:
DOI: https://doi.org/10.1007/BF02468423