FARKLI SERTLİKLERDEKİ X210CR12 SOĞUK İŞ TAKIM ÇELİĞİNİN PARMAK FREZELEME İŞLEMİNDE, KAPLAMALI SİNTERLENMİŞ KARBÜR VE KAPLAMALI SERMET KESİCİ TAKIMLARIN PERFORMANSLARININ KARŞILAŞTIRILMASI

Öz

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.

Anahtar Kelimeler

• Sinterlenmiş karbür, sermet, kaplamalar, takım aşınması, yüzey pürüzlülüğü, sertleştirilmiş çelikler.

Comparison of the Performances of Coated Sintered Carbide and Coated Cermet Cutting Tools in End Milling of X210CR12 Cold Work Tool Steel with Different Hardnesses

Öz

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 X210Cr12 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.

Anahtar Kelimeler

• Sintered carbide, cermet, coatings, tool wear, surface roughness, hardened tool steel.

Kaynakça

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