Fábio De Oliveira Campos

Federal University of Rio de Janeiro | UFRJ · Departamento de Engenharia Mecânica (DEM)

Ti6Al4V produced by selective laser melting (SLM) is replacing the use of casting workpieces as it is a net-near shape process that can maintain its mechanical and biocompatibility properties and it can produce scaffolds geometry reducing the workpiece weight. Typically, the microstructure produced by SLM differs from casted workpieces, the surface...

Pure titanium is the ideal metallic material to be used for producing dental implants due to its good corrosion resistance and biocompatibility. However, pure titanium does not present high mechanical resistance, which can be a limiting factor. Recently, the pure titanium is being replaced by titanium alloy with aluminum and vanadium (Ti–6Al–4V). T...

Super duplex UNS S32750 is an important steel used in the deep oil industry that could be applied in the fabrication of microsensors and microactuators. However, there are no previous studies that could estimate cutting forces, no information in the literature about specific cutting force values for super duplex nor for similar stainless steels in...

Implants are usually manufactured in titanium alloys due to their biocompatibility and high corrosion resistance. The additional elements present in titanium alloys increase the mechanical properties but also increase the possibility of infectious-inflammatory processes in the implanted region. Commercially pure titanium (CP Ti) has lower mechanica...

Micro-end-milling is one of the manufacturing processes that produce micro topography using mechanical removal, and its force modeling presents some peculiarities compared with macro-scale process. However, a few studies have been carried out using aluminum alloys and there is a lack of experimental data concerning the specific cutting force. This...

Micro end milling is one of the manufacturing processes that produces micro topography using mechanical removal of chips. Its modeling presents some peculiarities compared to meso scale process. This article presents a mechanistic model for micromilling process considering homogeneous grain properties. It is not taken into account dynamic behavior...

The most commonly used implants for orthopedic and orthodontic applications are the metallic ones, specially, those made of titanium. In spite of presenting high mechanical strength and remaining chemically inert, these implants are not bio-absorbable and are susceptible to biological rejection. An alternative that would eliminate such complication...

Robot manipulators can be applied to material removal processes, presenting advantages as compared with CNC machine tools, such as: more flexibility, lower initial cost, lesser waste of material, and better surface finishing on the parts. The objective of this work is present a study about robots used to material removal applications.