Farklı sertliklerdeki X210CR12 soğuk iş takım çeliğinin parmak frezeleme işleminde,kaplamalı sinterlenmiş karbür ve kaplamalı sermet kesici takımların performanslarının karşılaştırılması

Son yıllarda talaşlı üretim uygulamalarındaki genel yaklaşım, iş parçalarının son sertliklerinde talaş kaldırmaya tabi tutulmalarıdır. Bununla tezgah, kesici, iş gücü ve enerjiden kazançların elde edilmesi hedeflenmektedir. Bu çalışmada, 35 HRC ve 62 HRC'ye sertleştirilmiş X210CR12 çeliğinin farklı kesici takımlarla işlenmesinde aşınma davranışları ve performansları incelenmiştir. Kesici takım olarak kimyasal buhar çökertme yöntemiyle TiCN, fiziksel buhar çökertme yöntemi ile TiCN+TiAlN kaplamalı sinterlenmiş karbür takımlar ve fiziksel buhar çökertme ile TiAlN kaplamalı sermet kesici takımlar kullanılmıştır. Kesici performans değerlendirmesi, işlenmiş parçaların yüzey kalitesine ve kesici takımın yanal yüzey aşınmasına göre yapılmıştır. TiCN+TiAlN kaplamalı sinterlenmiş karbür ve TiAlN kaplamalı sermet kesici takımlar hem yanal yüzey aşınması hem de işlenmiş parçanın yüzey kalitesi açısından TiCN kaplamalı sinterlenmiş karbür takıma göre daha iyi performans göstermiştir.

Comprasion of the performances of coated sintered carbide and coated cermet cutting tools in end milling of X210CR12 cold work tool steel with different hardnesses

In recent years, the general trend in manufacturing industry is to machine work materials in hardened state. In this way, it is intended to cut tooling, manpower and energy costs. This study explored the. performance and wear behaviour of different cutting tools in end milling of X210Crl2 cold-work tool steel hardened to 35 HRC and 62 HRC. The cutting tools used in this study are TiCN coated sintered carbide by physical vapour deposition, TiCN+TiAlN coated sintered carbide by chemical vapour deposition and TiAlN coated cermet by physical vapour deposition. Tool performance evaluation was based on the surface finish of machined part and tool flank wear. TiCN+TiAlN coated sintered carbide tool and TiAlN coated cermet tool exhibited better performance than TiCN coated sintered carbide tool in terms of both flank wear and quality of machined surfaces.

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1.Bergmann, E., Kaufmann, H., Schmid, R., Vogel, J., 1990, Ion-plated titanium carbonitride films, Surface Coating Technology, 42, 3, 237-251. 2.Bolognini, S., Mari, D., Viatte, T., Benoit, W., 2001, Fracture toughness of coated TiCN-WC-Co cermets with graded composition, International Journal of Refractory Metals and Hard Materials, 19, 4,285-292. 3.Coldwell, H., Woods, R., Paul, M., Koshy, P., Dewes, R., Aspinwall, D., 2003, Rapid machining of hardened AISI H13 and D2 moulds, die and press tools, Journal of Materials Processing Technology, 135, 301-311. 4.Cristopher, J.D., 1994, Selection of Cutting Tool Materials, in: Whitney, E.D. (Ed.), Ceramic Cutting Tools, Noyes Publications, New Jersey. 5.Dewes, R.C., Aspinwall, D.K., 1997, A review of ultra high speed milling of hardened steels, Journal of Materials Processing Technology, 69,1-17. 6.Erturk, E., Knotek, O., Burgmer, W., Prengel, H.G., Heuvel, H.J., Dederichs, H., Stössel, G.C., 1991, Ti(C, N) coatings using the arc process, Surface Coating Technology, 46,1, 39-46. 7.Fallböhmer, P., Rodriguez, C.A., Özel, T., Altan, T., 2000, High-speed machining of cast iron and alloy steels for die and mould manufacturing, Journal of Materials and Processing Technology, 98,104-115. 8.Gough, J., 1990, High speed machining for tool making applications, Precision Toolmaker, 8, 3,154-157. 9.ISO 8688-2, 1989, Tool life testing in milling: Part 2-End milling. 10.Jacobson B.E., Deshpandey, C.V., Doerr, H.J., Karim, A.A., Bunshah, R.F., 1984, Microstructure and hardness of Ti(C, N) coatings on steel prepared by the activated reactive evaporation technique, Thin Solid Films, 118, 3, 285-292. 11.Jindal, P.C., Santhanam, A.T., Schleinkofer, U., Shuster, A.F, 1999, Performance of PVD TiN, TiCN, and TiAlN coated cemented carbide tools in turning, International Journal of Refractory Metals and Hard Materials, 17,163-170. 12.Kopac, J., Bahor, M., Sokovic M., 2002, Optimal machining parameters for achieving the desired surface roughness in fine turning of cold pre-formed steel Workpieces, International Journal of Machine Tools and Manufacture, 42, 6, 707-716. 13.Koshy, P., Dewes, R.C., Aspinwall, D.K., 2002, High speed end milling of hardened AISI D2 tool steel (-58 HRC), Journal of.Materials Processing Technology, 127, 266-273. 14. König, W., Iding, M., Link, R., 1990a, Fine turning and drilling hardened steel: 2, Industrial Diamond Review, 3, 90,139-142. 15.König, W., Klinger, M., Link R., 1990b, Machining hard materials with geometrically defined cutting edges-fields of applications and limitations, Ann. CIRP, 39,1, 61-69. 16. Liu, Z.Q., Ai, X., Zhang, H., Wang, Z.T. and Wan, Y., 2002, Wear patterns and mechanisms of cutting tools in high-speed face milling, Journal of Materials Processing Technology, 129,1-3, 222-226. 17. Novak, S., Komac, M., Sokovic, M., Pracek, B., 1997, On the wear of TiN (PVD) coated cermet cutting tools, Vacuum, 48, 2,107-112. 18. Schulz, H., 1994, High speed machining - some of the latest developments, Metalworking World, 3, 32-36. 19.Sokovic, B.M. and Bahor,-M., 1998, On the inter-relationships of some machinability parameters in finish machining With cermet TiN (PVD) coated tools, Journal of Materials Processing Technology, 78,1,163-170. 20.Tonshoff, H.K., Mohlfeld, A., 1997 PVD-Coatings for wear protection in dry cutting operations, Surface and Coating Technology, 93,1, 88-92. 21.Urbanski, J.P., Koshy, P., Dewes, R.C., Aspinwall, D.K., 2000, High speed machining of moulds and dies for net shape manufacture, Materials and Design, 21, 4,395-402. 22.Vicenzi, B., Risso, L., Calzavarini, R., 2001, High performance milling and gear hobbing by means of cermet tools with a tough (Ti, W, Ta)(C, N)-Co, Ni, W composition, International Journal of Refractory Metals and Hard Materials, 19,1,11-16.