Method of Large Plastic Strain Research

Creating a theoretical framework for high-performance implementations of capabilities of the cutting method with outstripping plastic deformation (OPD), first proposed and developed in Bauman Moscow State Technical University, requires extensive research, including metallographic research. In the treatment area cutting with OPD uses two mechanical sources of energy: methods of surface plastic strain and cutting. To study the strain state of the material, method of coordinate dividing grids is widely used. However, the scientific literature does not describe a single experimental method of obtaining a deformation field pattern in the cutting area, which results from the total impact on the material of two consecutive large plastic strains - from pressure treatment and the process of cutting, as when cutting with OPD. We show a new method of applying micro-grids, which allows us to solve the task of recreating a real pattern of deformation occurring in the zone of chip formation when cutting with OPD under the actual operating conditions, the angles of sharpening the cutting tool and the use of intractable materials.

References

[1] Poduraev V.N., Yaroslavtsev V.M., Yaroslavtseva N.A. A method of machining with leading plastic deformation. Vestnik mashinostroeniya [Bulletin of mechanical engineering], 1971, no. 4, pp. 64-65 (in Russ.).

[2] Yaroslavtsev V.M. Development and practical implementation of methodology of search of new methods of material processing. Vestn. Mosk. Gos. Tekh. Univ. im. N.E. Baumana, Mashinostr. [Herald of the Bauman Moscow State Tech. Univ., Mech. Eng.], 2007, no. 2, pp. 56-70 (in Russ.).

[3] Yaroslavtseva N.A., Yaroslavtsev V.M., Poduraev V.N. Sposob obrabotki rezaniem [Method of processing by cutting]. Inventor’s Certificate USSR, no. 358089, 1972.

[4] Yaroslavtsev V.M. Sposob obrabotki rezaniem s operezhayushchim plasticheskim deformirovaniem [Method of processing by cutting with leading plastic deforming]. Inventor’s Certificate USSR no. 407648, 1974.

[5] Yaroslavtsev V.M. Rezanie s operezhayushchim plasticheskim deformirovaniem [Cutting with leading plastic deforming]. Moscow, MGTU im. N.E. Baumana Publ., 2010. 46 p.

[6] Sato Mototaro, Kato Yoshio, Tsutiya Kasuhiro. On the cutting mechanism of cold-rolled aluminum alloy. J. Jap. Inst. Light Metals, 1978, vol. 28, по. 2, pp. 93-97.

[7] Abeyama Shozo, Kumura Atsuyoshi, Nakamura Sadayuki. Influence of cold working on machinability. Denki-Selko, Elec. Funace Steel, 1980, vol. 51, по. 3, pp. 188-194.

[8] Yaroslavtsev V.M., Yaroslavtseva N.A., Nazarov N.G. Sbornaya tortsovaya freza dlya obrabotki metallov s operezhayushchim plasticheskim deformirovaniem [Interlocking face mill for metal working with leading plastic deformation]. Patent RF no. 151913 U1, MPK V23S 5/06. 01.2006.

[9] Sergeev E.S., Zinin M.A., Gavrilov S.A., Shchedrin A.V., Voronkov V.I., Polyakov A.O. Influence of the angle of deflection member surfaces affect the performance of the combined methods of suturing (drawing) of the holes. Uprochnyayushchie tekhnologii i pokrytiya [Strengthening Technologies and Coatings], 2015, no. 3, pp. 20-24 (in Russ.).

[10] Gol’dshmidt M.G. Deformatsii i napryazheniya pri rezanii metallov [Deformations and stresses in metal cutting]. Tomsk, STT, 2001. 180 p.

[11] Kargin V.R., Kargin B.V. Eksperimental’noe issledovanie protsessov deformatsii pri obrabotke davleniem [Experimental study of deformation processes in pressure treatment]. Samara, Samarskiy GAU Publ., 2010. 49 p.

[12] Yaroslavtseva N.A. Study of deformation type in the area of chip formation in case of cutting with leading plastic deforming. Vestn. Mosk. Gos. Tekh. Univ. im. N.E. Baumana, Mashinostr. [Herald of the Bauman Moscow State Tech. Univ., Mech. Eng.], 2012, no. 3, pp. 101-113 (in Russ.).

[13] Recht R.F. Catastrophic thermoplastic shear. J. Appl. Mech., 1964, vol. 31, iss. 2, pp. 189193. DOI:10.1115/1.3629585.

[14] Yaroslavtsev V.M. New in cutting process. Vestn. Mosk. Gos. Tekh. Univ. im. N.E. Baumana, Mashinostr. [Herald of the Bauman Moscow State Tech. Univ., Mech. Eng.], 2000, no. 4, pp. 32-46 (in Russ.).

[15] Yaroslavtseva N.A., Yaroslavtsev V.M., Nazarov N.G. Sposob eksperimental’nogo opredeleniya parametrov plasticheskoy deformatsii pri mekhanicheskoy obrabotke metallov [The method of experimental determinning plastic deformation parameters during metal machining]. Patent RF no. 2527139 S1, MPK G01N1/30. 01. 2006, G01N3/58. 0.12006.

[16] Yaroslavtsev V.M. Mechanics of cutting processes of plastically deformed metals with non-uniform properties of cutting layer. Nauka i obrazovanie. MGTU im. N.E. Baumana [Science & Education of the Bauman MSTU. Electronic Journal], 2011, no. 8. DOI: 10.7463/0811.0195350 Available at: http://technomag.bmstu.ru/en/doc/195350.html