Currently computational tools are helping and improving the processes and testing procedures in several areas of knowledge. Computed tomography (CT) is a diagnostic tool already consolidated and now beginning to be used as a tool for something even more innovative, creating biomodels. Biomodels are anatomical physical copies of human organs and tissues that are used for diagnosis and surgical planning. The use of tomographic images in the creation of biomodels has been arousing great interest in the medical and bioengineering area. In addition to creating biomodels by computed tomography it is also possible, using this process, to create mathematical models to perform computer simulations and analyses of regions of interest. This paper discusses the creation of a biomodel of the skull-mandibular region of a patient from CT for study and evaluation of efforts in the area of the temporomandibular joint (TMJ) aiming at the design and development of a TMJ custom prosthesis. The evaluation of efforts in the TMJ region due to the forces of mastication was made using the finite element method and the results were corroborated by comparison with mandibular models studied in similar works.

No abstract

The significance of machining parameter optimization is increasing day by day in the current manufacturing scenario. Many large industries have attempted to introduce the highly automated and computer-controlled machines as their strategy to adapt to the ever-changing competitive market requirement. Due to high capital and machining costs, there is an economic need to operate these machines as efficiently as possible in order to obtain the required pay back. This research looks to fill gaps in current residual stress modeling techniques. In particular, the research will focus on predicting residual stresses in milling and drilling process. Mild steel ASTM A36 is the material used here. An investigation on influence of machining parameters such as number of teeth of the cutter (Zc) and depth of cut (t) for milling, feed (S) and diameter of drill bit (d) for drilling. These parameters have large influence on the cutting force, and the response parameter is the residual stress. Experiments were conducted. Effects of input parameters on output responses were studied. The simulation is carried out with ANSYS workbench. And finally optimal parameter combination in milling and drilling is obtained.

ResumoEquipamentos usados nas usinas sucroalcooleiras e de extração mineral são submetidos a condições severas de

Nowadays, the search for innovative techniques for Veterinary Medicine has been constant. Problems such as laminitis, that causes hoof pain in large and medium-sized animals, foot fractures that occur by trampling or even hoof breaking, can impair the productive or functional development of the animals, even leading to their sacrifice. The aim of this research is to use reverse engineering and additive manufacturing technologies to contribute to the development of orthoses for these animals that need help to be rehabilitated back to their environment, with a more adequate comfort. As a result, it was possible to digitize the lower limb of a calf that had an open fracture using reverse flight time engineering technology with the Kinect One equipment and thus digitize the paw to create a fixation and immobilization orthosis for the member. The orthosis was produced by additive manufacturing technology to immobilize the lower limb of the fractured calf. Thus, it is concluded that reverse engineering and additive manufacturing technologies can greatly assist in the area of veterinary medicine.