Increasing the durability of cold forging dies hardening with intermediate tempering
https://doi.org/10.21122/1683-6065-2022-3-91-95
Abstract
Based on studies of the tool wear nature for cold stamping, the expediency of using heat treatment by quenching with intermediate tempering has been established. Considering that the dislocation density changes little at 1100–1150 ºС, it was recommended this specific temperature range for heat treatment. Intermediate tempering at 450 ºС is the most preferable, as it provides not only dislocation structure stabilization, but also reduces internal stresses after the first hardening. This treatment increases the durability of the forging tool by 2–3 times.
About the Authors
D. M. Berdiev
Tashkent State Technical University named after I. Karimov
Uzbekistan
Tashkent, 2, Universitetskaya str.
Uzbekistan
Tashkent, 2, Universitetskaya str.
R. K. Toshmatov
Tashkent State Technical University named after I. Karimov
Uzbekistan
Tashkent, 2, Universitetskaya str.
Uzbekistan
Tashkent, 2, Universitetskaya str.
A. Kh. Abdullaev
Tashkent State Technical University named after I. Karimov
Uzbekistan
Tashkent, 2, Universitetskaya str.
Uzbekistan
Tashkent, 2, Universitetskaya str.
References
1. Okolovich G.A. Shtampovie stali dlya xolodnogo deformirovaniya metallov [Die steels for cold forming of metals]. Barnaul: AltGTU Publ., 2010, 202 р.
2. Brikov M. N., Efremenko V. G., Efremenko A. V. Iznosostoykost staley i chugunov pri abrazivnom iznashivanii [Wear resistance of steels and cast irons under abrasive wear]. Xerson, Grin D. S. Publ., 2014, 364 p.
3. Goldshteyn M. I., Grachev S. V., Vekeler Yu. G. Spetsialnoe stali [Special steel]. Moscow, MISiS Publ., 1999, 408 p.
4. Mukhamedov A.A. The Influence of the Thermal History on the structure and Properties of Steel. The physics of Metals and Metallography, 1992, vol. 74, no. 5, pp. 482–487.
5. Yugay S. S., Kleyner L. M., Shotsev A.A., Mitroxovich I. N. Strukturnaya nasledstvennost v nizkouglerodistix martensitnix stalyax [Structural heredity in low‑carbon martensitic steels]. Metallovedenie i termicheskaya obrabotka metallov =Metal Science and Heat Treatment of Metals, 2004, no. 12, pp. 24–29.
6. Berdiev D. M., Umarova M.A., Toshmatov R. K. Phase and structural transformations of structural steels in nontraditional heat treatment. Russian Engineering Research, 2021, vol. 41, no. 1, pp. 46–48.
7. Sagaradze V. V., Zuev Yu. N., Bondarchuk S. V. Structural heredity in the U‑6 Nb Alloy and Conditions for its Elimination. The Phusics of Materials and Metallography, 2013, vol. 114, no. 4, рр. 299–307.
8. Dyuchenko S. S. Heredity in phase transformation: mechanism of the phenomenon and effect on the properties. Metall Science and heat treatment, 2000, vol. 42, no. 3–4, pp. 122–126.
9. Berdiev D. M., Yusupov A.A. Nestandartnie rejimi termicheskoy obrabotki i ix vliyanie na iznosostoykost stalnix izdeliy [Nonstandard heat treatment modes and their influence on the wear resistance of steel products]. Vestnik mashinostroeniya = Bulletin of Mechanical Engineering, 2021, no. 5, рр. 61–63.
10. Bataev V.A., Bataev A.A., Alximov A. P. Metodny strukturnogo analiza materialov i kontrolya kachestva detaley [Methods of structural analysis of materials and quality control of parts]. Moscow, Nauka Publ., 2007, 224 p.
11. Gorelik S. S., Skakov Yu.A., Rastvorguev L. N. Rentgenograficheskiy i elektronno-opticheskiy analiz [X‑ray and electronoptical analysis]. Moscow, MISIS Publ., 1994, 328 р.
12. Zolotorevskiy V. S. Mehanicheskie svoystva metallov [Mechanical properties of metals]. Moscow, MISiS Publ., 1998, 400 p.
13. Berdiev D. M., Yusupov A.A. Povyshenie iznosostojkosti stal’nyh izdelij metodom nestandartnyh rezhimov termicheskoj obrabotki [Improving the wear resistance of steel products by using non‑standard heat treatment modes]. Lit’e i metallurgija = Foundry production and metallurgy, 2021, no. 2, pp. 100–104.
Review
For citations:
Berdiev D.M., Toshmatov R.K., Abdullaev A.Kh. Increasing the durability of cold forging dies hardening with intermediate tempering. Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY). 2022;(3):91-95. (In Russ.) https://doi.org/10.21122/1683-6065-2022-3-91-95
Views:
253
Email this article 