BERTOLETE, M.BARBOSA, P.A.MACHADO, A.R.SAMAD, R.E.VIEIRA JUNIOR, N.D.VILAR, R.ROSSI, W. de2018-11-222018-11-222018BERTOLETE, M.; BARBOSA, P.A.; MACHADO, A.R.; SAMAD, R.E.; VIEIRA JUNIOR, N.D.; VILAR, R.; ROSSI, W. de. Effects of texturing the rake surfaces of cemented tungsten carbide tools by ultrashort laser pulses in machining of martensitic stainless steel. <b>International Journal of Advanced Manufacturing Technology</b>, v. 98, n. 9-12, p. 2653-2664, 2018. DOI: <a href="https://dx.doi.org/10.1007/s00170-018-2407-x">10.1007/s00170-018-2407-x</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/29272.0268-3768http://repositorio.ipen.br/handle/123456789/29272The present study investigates the effect of texturing the rake face of uncoated cemented tungsten carbide tools by ultrashort laser pulses for tribological improvement. In this sense, four parallel micro-groove texturing patterns were created on the rake face of the cutting tools, beginning at a variable distance from the cutting edge. The pitch between grooves was also varied. Friction force, machining force, chip features, and surface roughness were evaluated from semi-orthogonal dry turning in the reference (nontextured) and textured tools. The results showed friction force reduction by nearly 40%; chip deformation decrease around 21%; machining force reduction by 20%; and surface roughness by 46 and 28% for Ra and Rz, respectively, for the best texturing pattern.2653-2664openAccesstungsten carbidescermetsstainless steelsmartensitic steelslaserspulsestextureroughnesssurfacesfriction factormachiningArtigo de periódico9-129810.1007/s00170-018-2407-xaguardandoaguardandoaguardandohttps://orcid.org/0000-0003-1371-7521https://orcid.org/0000-0003-0092-9357https://orcid.org/0000-0001-7762-896154.0674.00