TECHNOLOGY OF POWER-OPERATED FINISHING-ANDSKINNING
OF BRITTLE MATERIAL PARTS 

Lipov Aleksandr Viktorovich, Candidate of engineering sciences, professor, dean of the faculty of mechanical
engineering and transport, Penza State University (Penza, 40 Krasnaya str.), dit@pnzgu.ru 

621-2.002.2 

The article gives the results of theoretical and experimental research of vibromechanical treatment of brittle material parts. Technological parameters of such treatment are determined at the present time on the basis of preliminary experimental research, which considerably increases its cost and conduction time. The processed materials are divided into two groups. The first group includes the materials that are brittle in normal conditions (thermosetting plastics, hard alloys etc.), the second includes the materials that require to be cooled down to brittle state before treatment (thermoplasts and rubbers). Experimental research was conducted on a vibration tool with working chamber volume of 12 dm3, which can be heat-insulated and sealed in order to process the parts made of thermoplasts and rubbers. The required dependencies are achieved on the basis of the theory of metal cutting and polymer destruction using mathematical planning. Development of the technology is conducted by the example of rounding the cutting edge of the replaceable multifaceted tool plates, produced from hard alloys, and by the example of burr removal from thermoplast parts. The article adduces the dependencies and recommendations, allowing through calculation to determine technological parameters of vibration treatment of brittle material parts, which significantly decreases the conduction time avoiding labour-consuming preliminary experimental research. 

removable multifaceted plate (NSR) of the cutting tool, thermoplastics, burr, vibrating machine, chips and chipping, processing modes. 

1. Pat. 2286239 (RF) S1V24V31/06. Ustroystvo dlya vibratsionnoy obrabotki detaley [Device for parts vibration treatment]. Trilisskiy V. O., Panchurin V. V., Bol'shakov G. S. 27.10.06, no. 30.
2. Trilisskiy V. O., Bol'shakov G. S., Lipov A. V., Yarmolenko E. N. Izvestiya vysshikh uchebnykh zavedeniy. Povolzhskiy region. Tekhnicheskie nauki [University proceedings. Volga region. Engineering sciences]. 2010, no. 2, pp. 131–137.
3. Trilisskiy V. O., Lipov A. V., Bykov M. N., Musaev R. Sh. Izvestiya vysshikh uchebnykh zavedeniy. Povolzhskiy region. Tekhnicheskie nauki [University proceedings. Volga region. Engineering sciences]. 2006, no. 6, pp. 27–33.
4. Trilisskiy V. O., Lipov A. V., Musaev R. Sh. Mashinostroitel' [Mechanical engineer]. 2009, no. 3, pp. 12–14.
5. Lipov A. V., Bol'shakov G. S., Musaev R. Sh. Mashinostroitel' [Mechanical engineer]. 2010, no. 10, pp. 41–44.
6. Bartenev G. M. Prochnost' i mekhanizm razrusheniya polimerov [Strength and destruction mechanism of polymers]. Moscow: Khimiya, 1984, 280 p.
7. Lipov A. V., Bol'shakov G. S., Musaev R. Sh. Naukoemkie tekhnologii v mashinostroenii [Science intensive technologies in mechanical engineering]. 2011, no. 4. pp. 27–32.