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@InProceedings{SilvaCarnJesuTrav:2015:PeCaCo,
               author = "Silva, William and Carneiro, J. and Jesus, L. and Trava-Airoldi, 
                         Vladimir Jesus",
          affiliation = "{Universidade Estadual Paulista (UNESP)} and {Pontificia 
                         Universidade Catolica de Minas Gerais (PUC-MG)} and {Pontificia 
                         Universidade Catolica de Minas Gerais (PUC-MG)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)}",
                title = "Performance of Carbide Coated Tools with DLC in the Drilling of 
                         SAE 323 Aluminum Alloy",
                 year = "2015",
         organization = "The International Conference on Metallurgical Coatings and Thin 
                         Films, 42. (ICMCTF).",
             abstract = "It is widely known that the performance of a drilling tool 
                         increases with the application of coatings. Nowadays, the most 
                         widely used coatings for machining aluminum alloys are TiCN and 
                         TiN, due to their mechanical properties such as high hardness with 
                         low friction. This work presents a study on the performance of 
                         cemented carbide coated with diamond-like carbon (DLC) in the 
                         drilling of aluminum alloy, since the DLC is a promising material 
                         as a coating and has the same mechanical characteristics of the 
                         coatings used regularly. Samples of DLC coatings were deposited 
                         using PECVD. Initially, the adhesion between film and substrate 
                         did not occur. In order to avoid this, it was added intermediate 
                         silicon layer. After an extensive investigation of the deposition 
                         parameters, drilling coated tools were obtained. The 
                         characterization of the tool substrate through the X-ray 
                         diffraction showed the standard pattern of the WC-Co. For the 
                         coating, the typical spectrum of DLC was checked by Raman 
                         spectroscopy. An amount of two hundred pieces of molten on 
                         aluminum alloy (SA-323) were chosen for the respective analyzes of 
                         roundness, radial deviation, deviation of diameter and roughness. 
                         All these geometries were measured as a function of the number of 
                         holes produced by each tool, under coated and uncoated condition. 
                         Visual inspections by SEM and EDX analysis of worn tool were 
                         performed before and after each sequence. Finally, it was found 
                         that the DLC coating improves the tool performance, improving the 
                         geometry quality. However, the effect of peeling on the coating 
                         gradually increased.",
  conference-location = "San Diego, California",
      conference-year = "20-24 apr.",
             language = "en",
        urlaccessdate = "25 nov. 2020"
}


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