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Влияние геометрии абразивного зерна на силы резания при шлифовании

ISSN 0236-3941. Вестник МГТУ им. Н.Э. Баумана. Сер. Машиностроение. 2017. № 5

61

9.

Fang N.

Tool-chip friction in machining with a large negative rake angle tool // Wear. 2005.

Vol. 258. No. 5-6. P. 890–897. DOI: 0.1016/j.wear.2004.09.047

URL:

http://www.sciencedirect.com/science/article/pii/S0043164804003333

10.

Ohbuchi Y., Obikawa T.

Finite element modeling of chip formation in the domain of negative

rake angle cutting // J. Eng. Mater. Tech. 2003. Vol. 125. No. 3. P. 324–332.

DOI: 10.1115/1.1590999

URL:

http://materialstechnology.asmedigitalcollection.asme.org/article.aspx?articleid=1427019

11.

Zherebtsov S., Salishchev G., Galeyev R.

Mechanical properties of Ti–6Al–4V titanium alloy

with submicrocrystalline structure produced by severe plastic deformation // Materials Transac-

tions. 2005. Vol. 46. No. 9. P. 2020–2025. DOI: 10.2320/matertrans.46.2020

URL:

https://www.jstage.jst.go.jp/article/matertrans/46/9/46_9_2020/_article

Воронов Сергей Александрович

— д-р техн. наук, профессор кафедры «Прикладная

механика» МГТУ им. Н.Э. Баумана (Российская Федерация, 105005, Москва, 2-я Бауман-

ская ул., д. 5, стр. 1).

Ма Вэйдун

— аспирант кафедры «Прикладная механика» МГТУ им. Н.Э. Баумана

(Российская Федерация, 105005, Москва, 2-я Бауманская ул., д. 5, стр. 1).

Просьба ссылаться на эту статью следующим образом:

Воронов С.А., Вэйдун Ма. Влияние геометрии абразивного зерна на силы резания при

шлифовании // Вестник МГТУ им. Н.Э. Баумана. Сер. Машиностроение. 2017. № 5.

С. 52–63. DOI: 10.18698/0236-3941-2017-5-52-63

EFFECT OF ABRASIVE GRAIN GEOMETRY ON CUTTING FORCES

IN GRINDING

S.A. Voronov

voronov@rfbr.ru

Weidong Ma

314651368@qq.com

Bauman Moscow State Technical University, Moscow, Russian Federation

Abstract

Keywords

The article supplies the results of modelling the micro-

cutting process for a single pyramid-shaped abrasive

grain in preset modes featuring various cutting thick-

nesses and grain axis inclination angles (the rake angle of

the cutting wedge). We investigate the processes of

elastoplastic deformation, chip formation, cratering,

built-up edge formation and burr formation when the

tool cuts into materials; we also determine the ratio of

cutting area to cutting force. To compute the stress-strain

state parameters, we used the Johnson–Cook material

model that takes into account temperature along with

strain rate and level. We solve the stress-strain state

problem as stated together with the problem of

temperature in the workpiece material. We determine

cutting force coefficients and study the effect of rake

angles in the grains on the cutting force coefficients

Micro-cutting, abrasive grain, finite

element method, stress-strain state,

temperature, grinding, cutting forces