Quantitative wear indicators in carbide tools with variation in hardness
| Authors: Grubyi S.V. | Published: 07.02.2023 |
| Published in issue: #2(755)/2023 | |
| Category: Mechanical Engineering and Machine Science | Chapter: Technology and Equipment for Mechanical and Physico-Technical Processing | |
| Keywords: hard alloy, hard alloy, wear-resistant coatings, tool wear rate, tool life, variation coefficient |
The paper considers the method of calculating the rate of deterioration, wear and durability in the carbide tools on the example of prefabricated cutters with the replaceable polyhedral inserts, including those with the wear-resistant coatings. Equations are proposed that relate wear rate of the tool back surface with the cutting speed and the tool material hardness, as the cutting temperature function. It is shown that practical implementation of the calculation method is appropriate for stable conditions with coefficients in variation of the processed and tool material hardness within the 0.1 limit.
References
[1] Grubyy S.V. Fizicheskie zakonomernosti protsessa iznashivaniya tverdosplavnykh i almaznykh instrumentov [Physical laws of wearing process for carbide and diamond tools]. Moscow, Bauman MSTU Publ., 2013. 123 p. (In Russ.).
[2] Grubyy S.V. Optimizatsiya protsessa mekhanicheskoy obrabotki i upravlenie rezhimnymi parametrami [Optimization of mechanical processing and management on operating conditions]. Moscow, Bauman MSTU Publ., 2014. 149 p. (In Russ.).
[3] Grubyy S.V. Raschet parametrov i pokazateley protsessa rezaniya [Calculation of parameters and factors of cutting process]. Moscow, Vologda, Infra–Inzheneriya Publ., 2020. 192 p. (In Russ.).
[4] Ryzhikov Yu.I. Imitatsionnoe modelirovanie. Teoriya i tekhnologii [Simulation modeling. Theory and technologies]. Sankt-Petersburg, Korona Print Publ.; Moscow, Alteks-A Publ., 2004. 384 p. (In Russ.).
[5] Starkov V.K. Obrabotka rezaniem. Upravlenie stabilnostyu i kachestvom v avtomatizirovannom proizvodstve [Cutting work. Managing stability and quality in automated production]. Moscow, Mashinostroenie Publ., 1989. 296 p. (In Russ.).
[6] Vereshchaka A.S., Anikeev A.I., Dacheva A.V. Tough machining effectiveness increase by application of tooling with nanostructured wear-resistant coating. Tekhnologiya mashinostroeniya, 2010, no. 3, pp. 17–22. (In Russ.).
[7] Hartner. Materialy i pokrytiya [Hartner. Materials and coatings]. hartner.intertull.rf: website. URL: http://hartner.xn--e1afkahtmcj.xn--p1ai/ (accessed: 15.07.2022). (In Russ.).
[8] Coating guide. platit.com: website. https://www.platit.com/en/products/coating-guide/ (accessed: 15.07.2022).
[9] Lin Y.J., Agrawal A., Fang Y. Wear progressions and tool life enhancement with AlCrN coated inserts in high-speed dry and wet steel lathing. Wear, 2008, vol. 264, no. 3–4, pp. 226–234, doi: https://doi.org/10.1016/j.wear.2007.03.007
[10] Lvovskiy E.N. Statisticheskie metody postroeniya empiricheskikh formul [Statistical methods for making ‘empirical expressions]. Moscow, Vysshaya shkola Publ., 1982. 224 p. (In Russ.).
