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Izvorni znanstveni članak
Mechanism research on eliminating voids in bearing steel ball by floating-pressure method (FPM)
D. Y. Tian
; Faculty of Mechanical Engineering & Mechanics, Ningbo University, China
X. D. Shu
; Faculty of Mechanical Engineering & Mechanics, Ningbo University, China
C. Xu
; Faculty of Mechanical Engineering & Mechanics, Ningbo University, China
| Puni tekst: engleski, pdf (281 KB) | str. 245-248 | citiraj | |
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APA 6th Edition Tian, D.Y., Shu, X.D. i Xu, C. (2018). Mechanism research on eliminating voids in bearing steel ball by floating-pressure method (FPM). Metalurgija, 57 (4), 245-248. Preuzeto s https://hrcak.srce.hr/201728 MLA 8th Edition Tian, D. Y., et al. "Mechanism research on eliminating voids in bearing steel ball by floating-pressure method (FPM)." Metalurgija, vol. 57, br. 4, 2018, str. 245-248. https://hrcak.srce.hr/201728. Citirano 05.06.2020. Chicago 17th Edition Tian, D. Y., X. D. Shu i C. Xu. "Mechanism research on eliminating voids in bearing steel ball by floating-pressure method (FPM)." Metalurgija 57, br. 4 (2018): 245-248. https://hrcak.srce.hr/201728 Harvard Tian, D.Y., Shu, X.D., i Xu, C. (2018). 'Mechanism research on eliminating voids in bearing steel ball by floating-pressure method (FPM)', Metalurgija, 57(4), str. 245-248. Preuzeto s: https://hrcak.srce.hr/201728 (Datum pristupa: 05.06.2020.) Vancouver Tian DY, Shu XD, Xu C. Mechanism research on eliminating voids in bearing steel ball by floating-pressure method (FPM). Metalurgija [Internet]. 2018 [pristupljeno 05.06.2020.];57(4):245-248. Dostupno na: https://hrcak.srce.hr/201728 IEEE D.Y. Tian, X.D. Shu i C. Xu, "Mechanism research on eliminating voids in bearing steel ball by floating-pressure method (FPM)", Metalurgija, vol.57, br. 4, str. 245-248, 2018. [Online]. Dostupno na: https://hrcak.srce.hr/201728. [Citirano: 05.06.2020.] |
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Sažetak
To eliminate internal void and improve the mechanical properties of steel balls formed by skew rolling, the floatingpressure method (FPM) using high-pressure gas to compact void is applied in this paper. By establishing void closure mechanical model, effects of various factors on void closure are obtained. The change rule of microstructures and outline of steel ball is investigated using DEFORM-3D Finite element software, and results show that when void is entirely closed, steel ball diameter decreases by less than 2 %, and its dimensional accuracy is guaranteed; the dynamic recrystallization of the metal around void promotes the healing of micro-cracks. The FPM experiments are performed, which verify the accuracy of the finite element model.
Ključne riječi
bearing steel ball; skew rolling; voids; strain; FPM
Hrčak ID: 201728
URI
https://hrcak.srce.hr/201728
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