Profiling the Flutes in Thread-Milling Cutters

This paper presents an analysis of the existing methods of profiling the flutes of end-milling cutters, including thread-milling ones. The viability of generation of geometry of the flutes by simple profile tools is established, which makes manufacturing of such tools more efficient. Mathematical relations are developed to determine the profile of the flute end section of the thread-milling cutters based on a calculation model corresponding to the kinematic diagram of operation of CNC multi-axis grinders, which guarantees more efficient production planning of thread-milling cutters. The proposed theoretical dependencies are confirmed by experimental studies conducted on caprolon workpieces with the diameter of 34.5 mm on a universal grinder. They show a good convergence of the theoretical and experimental profiles with an error not exceeding 0.42 mm. The results of the study allow the formation of initial data for the evaluation of the strength of the tool design, optimization of its geometric and design parameters, teeth profiling, study of chip formation and chip removal, and determination of the tooth contact area with the cut stock.

References

[1] Rodin P.R., Ravskaia N.S., Kas’ianov A.I. Monolitnye tverdosplavnye kontsevye frezy [Solid carbide end mills]. Kiev, Vishcha shkola publ., Kiev. un-t publ., 1985. 64 p.

[2] Mal’kov O.V. Opredelenie profilia perednei poverkhnosti v tortsevom sechenii zub’ev rez’bovykh frez s vintovymi struzhechnymi kanavkami [Definition of the Face Profile in the End Section of the Teeth of the Thread Milling Cutters with Helical Flutes]. Nauka i obrazovanie. MGTU im. N.E. Baumana [Science&Education. Bauman MSTU]. 2014, no. 10. Available at: http://technomagelpub.elpub.ru/jour/article/view/694/696 (accessed 06 October 2017), doi: 10.7463/1014.0727298.

[3] Mal’kov O.V. Profilirovanie zub’ev rez’bovykh frez s vintovymi struzhechnymi kanavkami [Teeth profiling of thread milling cutters with helical flutes]. Nauka i obrazovanie. MGTU im. N.E. Baumana [Science&Education. Bauman MSTU]. 2013, no. 6. Available at: http://old.technomag.edu.ru/doc/579350.html (accessed 06 October 2017), doi: 10.7463/0613.0579350.

[4] Mal’kov O.V., Karel’skii A.S. Modelirovanie srezaemogo sloia pri rez’bofrezerovanii [Modelling the Cut Layer When Thread Milling]. Izvestiia vysshikh uchebnykh zavedenii. Mashinostroenie [Proceedings of Higher Educational Institutions. Маchine Building]. 2017, no. 9, pp. 54–64.

[5] TX7+. The Tough Production Performer. ANCA. Available at: http://www.anca.com/getattachment/655b099e-f443-4eb6-a671-1a3a52fd59f6/ANCA_TX7-_Brochure_2015.pdf.aspx (accessed 19 September 2017).

[6] Faskhutdinov A.I. Tochnost’ profilia vintovoi kanavki kontsevogo instrumenta [The helical groove profile accuracy of the end cutting tools]. Metalloobrabotka [Metallobrabotka]. 2008, no. 5(47), pp. 10–13.

[7] Chemborisov N.A., Iunusov F.S., Stupko V.B. Metodika avtomatizirovannogo rascheta profilia instrumenta dlia obrabotki naruzhnoi sostavnoi kanalovoi vintovoi poverkhnosti [A technique for computer-assisted calculations of a tool profile for treatment of external sectional helical surface of the channel]. Vestnik KGTU im. A.N. Tupoleva [Proceedings of KSTU im. A.N. Tupoleva]. 2001, no. 4, pp. 20–23.

[8] Chemborisov N.A., Faskhutdinov A.I. Formoobrazovanie profilia vintovoi kanavki kontsevogo instrumenta [The shaping of the profile of the spiral groove end of the tool]. STIN [Russian Engineering Research]. 2009, no. 3, pp. 13–15.

[9] Faskhutdinov A.I. Sovershenstvovanie protsessov profilirovaniia vintovykh kanavok i obrabotki kontsevykh frez so sfericheskim tortsem. Diss. kand. tekhn. nauk [Improving the profiling of the helical grooves and machining end mills ball nose. Cand. tech. sci. diss.]. Naberezhnye Chelny, ISTU publ., 2011. 184 p.

[10] Panchuk K.L., Vivdenko Iu.N., Klimov A.V. Profilirovanie diskovogo instrumenta dlia obrabotki vintovykh kanavok detail [Disk tool profiling for processing of spiral grooves of a part]. Omskii nauchnyi vestnik [Omsk scientific bulletin]. 2008, no. 1(64), pp. 35–40.

[11] Panchuk K.L., Polshkov V.Iu., Butko I.V. Komp’iuternoe graficheskoe profilirovanie diskovogo instrumenta dlia obrabotki vintovykh poverkhnostei [Computer graphic profiling of the disk tool for processing of screw surfaces]. Vestnik Kuzbasskogo gosudarstvennogo tekhnicheskogo universiteta [Vestnik of Kuzbass State Technical University]. 2011, no. 3, pp. 69–74.

[12] Brzhozovskii B.M., Zakharov O.V. Avtomatizirovannoe proektirovanie diskovogo instrumenta dlia obrabotki vintovykh poverkhnostei [Computer-aided design of disk tool for processing of screw surfaces]. Sistemy proektirovaniia, tekhnologicheskoi podgotovki proizvodstva i upravleniia etapami zhiznennogo tsikla promyshlennogo produkta. Sb. tr. konf. [System design, technological preparation of production and management stages of the life cycle of an industrial product. The conference proceedings]. Moscow, 18–20 October 2011, Moscow, OOO NVP «INEK» publ., 2011, pp. 182–184.

[13] Balandin A.D., Danilenko B.D. Analiz vozmozhnostei polucheniia vintovykh kanavok na metchikakh s pomoshch’iu kontsevykh frez [Analysis of the possibilities of obtaining screw grooves on the taps using end mills]. STIN [Russian Engineering Research]. 2012, no. 11, pp. 8–11.

[14] Balandin A.D., Danilenko B.D. Analiz vozmozhnostei obrazovaniia struzhenykh kanavok metchikov diskovymi trekhstoronnimi frezami [Analysis of possibilities to form chip grooves of taps by side milling cutters]. Spravoch-nik. Inzhenernyi zhurnal s prilozheniem [Handbook. An Engineering journal with appendix]. 2013, no. 2(191), pp. 37–39.

[15] Gaevoi A.P. Razrabotka metoda komp’iuternogo proektirovaniia rabochei chasti instrumentov s vintovymi struzhechnymi kanavkami. Diss. kand. tekhn. nauk [Development of a method of computer-aided design working part of the tool with helical flutes. Cand. tech. sci. diss.]. Moscow, Bauman Press, 2000. 200 p.

[16] Pogorazdov V.V., Zakharov O.V. Geometro-analiticheskaia podderzhka tekhnologii formoobrazovaniia vintovykh poverkhnostei [Geometric-analytical support of the technology of helical surfaces]. Saratov, SSTU publ., 2004. 70 p.

[17] Grechishnikov V.A., Domnin P.V., Kosarev V.A., Petukhov Iu.E., Romanov V.B., Sedov B.E. Sovremennye metody resheniia zadach formoobrazovaniia slozhnogo rezhushchego instrumenta [Modern methods of solution of problems of formation of complex cutting tools]. STIN [Russian Engineering Research]. 2013, no. 12, pp. 6–11.

[18] Petukhov Iu.E., Domnin P.V. Matematicheskaia model’ skhemy rezaniia pri formoobrazovanii fasonnoi vintovoi kanavki standartnymi frezami [Mathematical model cutting scheme in machining of helical groove with using standard milling cutter]. Izvestiia TulGU. Tekhnicheskie nauki [Proceedings of the TSU]. 2016, no. 8, pt. 1, pp. 37–46.

[19] Petukhov Iu.E., Domnin P.V. Komp’iuternoe modelirovanie obrabotki vintovoi kanavki na zagotovke kontsevoi frezy [Computer Simulation of Helical Groove Processing on the Workpiece of End-milling Cutter]. Izvestiia Moskovskogo gosudarstvennogo tekhnicheskogo universiteta MAMI [Proceedings of Moscow State University of Mechanical Engineering (MAMI)]. 2011, no. 2, pp. 156–164.

[20] Liashkov A.A. Formoobrazovanie vintovoi poverkhnosti detali uglovoi frezoi [Shaping of helical surface corner cutter]. Inzhenernyi vestnik Dona [Engineering journal of Don]. 2012, no. 3(21), pp. 331–335. Available at: http://ivdon.ru/ru/magazine/archive/n3y2012/978 (accessed 19 September 2017).

[21] Khill F. OpenGL. Programmirovanie komp’iuternoi grafiki. Dlia professionalov [OpenGL. Programming computer graphics. For professionals]. Sankt-Petersburg, Piter publ., 2002. 1088 p.