De Souza, José Vitor CandidoDe Andrade Nono, Maria Do CarmoMineiro, Sergio LuizDe MacEdo Silva, Olivério MoreiraRibeiro, Marcos Valério [UNESP]2014-05-272014-05-272008-12-01SAE Technical Papers.http://hdl.handle.net/11449/70748Automotive parts manufacture by machining process using silicon nitride-based ceramic tool development in Brazil already is a reality. Si 3N4-based ceramic cutting tools offer a high productivity due to their excellent hot hardness, which allows high cutting speeds. Under such conditions the cutting tool must be resistant to a combination of mechanical, thermal and chemical attacks. Silicon nitride based ceramic materials constitute a mature technology with a very broad base of current and potential applications. The best opportunities for Si3N 4-based ceramics include ballistic armor, composite automotive brakes, diesel particulate filters, joint replacement products and others. The goal of this work was to show latter advance in silicon nitride manufacture and its recent evolution on machining process of gray cast iron, compacted graphite iron and Ti-6Al-4V. Materials characterization and machining tests were analyzed by X-Ray Diffraction, Scanning Electron Microscopy, Vickers hardness and toughness fracture and technical norm. In recent works the authors has been proved to advance in microstructural, mechanical and physic properties control. These facts prove that silicon nitride-based ceramic has enough resistance to withstand the impacts inherent to the machining of gray cast iron (CI), compacted graphite iron (CGI) and Ti-6Al-4V (6-4). Copyright © 2008 SAE International.engAdvanced CeramicsAutomotive brakeAutomotive partsBallistic armorsCompacted graphite ironCutting speedDemand forecastDiesel particulate filtersGray cast ironHigh productivityHot hardnessJoint replacementMachining ProcessMachining testMaterials characterizationMicro-structuralPotential applicationsRecent performanceSilicon nitride-based ceramicsTechnical normsTi-6al-4vTool developmentAluminumCeramic cutting toolsFracture toughnessFriction materialsGraphiteJoint prosthesesMachiningMachining centersManufactureMechanical propertiesScanning electron microscopySiliconSilicon nitrideX ray diffractionCeramic materialsTrabalho apresentado em evento10.4271/2008-36-0330Acesso aberto2-s2.0-848775189662001862427592659