INTENSIFICATION OF SEPARATION PROCESS OF BAR MATERIAL ON DIMENSIONAL WORKPIECE OF WEDGE-SHAPED KNIVES
https://doi.org/10.21122/2227-1031-2017-16-1-16-20
Abstract
Based on the analysis of known methods of separation of bar mix to length determined that the most effective method of forming an annular groove therein plastic tapered section, with a gradual deformation of the metal disc blades recess which is destroyed in the mix zone. In order to reduce the depth of the groove after its shaping proposed to produce in the same local area flexural bar. Based on experimental data obtained an empirical formula relating the dependence of bending rod axis angle on the depth of the annular groove. It is found that the greatest effect on the angle of local bending rod axis in the annular groove zone occurs when changing its depth from 0.5 to 3.0 mm. And this dependence is exponential in nature. Reducing the local axis of the workpiece bending angle for the specified range of the groove depth will be between 8.83º to 2.23º. A further increase in the depth of the annular groove is not practical, because the angle of bending the rod axis with reduced insignificantly. The dependence is valid for the separation process rods tapered disc blades with a local curvature of its axis is almost independent of the original diameter shared assortment. Therefore, the process can be carried out efficiently when the groove depth is not greater than 3.0 mm.
Keywords
About the Authors
L. A. IsaevichBelarus
Professor, PhD in Engineering
Address for correspondence: Isaevich Leonid A. – Belarusian National Technical University, 24 Ya. Kolasa str., 220013, Minsk. Tel.: +375 17 296-67-85 nitomd@bntu.by
M. I. Sidorenko
Belarus
Associate Professor, PhD in Engineering
References
1. Navrotsky G. A. (Editorship) [et al.] (1987) Forging and Stamping. Reference Book. Vol. 3. Cold Die Forging. Moscow, Mashinostroyenie Publ., 384 (in Russian).
2. Solovtsov S. S. (1990) Die Cutting of Precise Blanks from Rolled Sections. Moscow, Scientific Research Institute of Mechanical Engineering. 52 (in Russian).
3. Egorov M. E., Dementiev V. I., Dmitriev V. L. (1976) Mechanical Engineering Technology. Moscow, Vysshaya Shkola. 534 (in Russian)
4. Klushin V. A., Makushok E. M., Shchukin V. Ya. (1974) Improvement of Cross-Wedge Rolling. Minsk, Nauka i Tekhnika Publ. 155 (in Russian).
5. Kazanskaya I. I., Mukhonin V. F., Markov Yu. A. (1984) Mills for Production of Precise Blanks for Machine Parts. Kuznechno-Shtampovochnoe Proizvodstvo [Forging and Stamping Production], (4), 5–8 (in Russian).
6. Vasilchikov M. V., Barbarich M. V., Zhukevich – Stosha E. A. (1968) Production of Precise Blanks for Machine Parts while Using Rolling Process. Moscow, Ministry of Heavy power and transport engineering. 338 (in Russian).
7. Sidorenko M. I. (1999) Separation of Bars in Cut-to-Length Sections. Minsk, PARADOKS Publ. 228 (in Russian).
8. Stepanenko A. V., Isaevich L. A., Sidorenko M. I. (1987) Tool for Cross Rolling of Rotation Bodies. Inventor’s Certificate 1292887 USSR (in Russian).
9. Stepnov M. N. (1985) Statistical Methods for Processing of Technical Test Results: Reference Book. Moscow, Mashinostroyenie. 232 (in Russian).
10. Sidorenko M. I. (2012) Specific Features Pertaining to Separation of Bar Assortment in Cut-to-Length Sections while Using Roller Wedge-Like Blade. Izvestiia Natsional'noi akademii nauk Belarusi. Ser. fiziko-tekhnicheskikh nauk [Proceedings of the National Academy of Sciences of Belarus. Physico-technical series], (1), 43 - 50 (in Russian).
11. Gubkin S. I. (1935) Plastic Deformation of Metals. Moscow; Leningrad, United Scientific and Technical Publishing House – Peoples’ Commissariat of Heavy Industry. 448 (in Russian).
Review
For citations:
Isaevich L.A., Sidorenko M.I. INTENSIFICATION OF SEPARATION PROCESS OF BAR MATERIAL ON DIMENSIONAL WORKPIECE OF WEDGE-SHAPED KNIVES. Science & Technique. 2017;16(1):16-20. (In Russ.) https://doi.org/10.21122/2227-1031-2017-16-1-16-20