Wilson Kindlein

Customized craniofacial implants: Design and manufacture

Abstract: This chapter provides an overview of the different methods currently available to design and manufacture customized craniofacial implants. Tools and techniques, such as computer tomography, CAD/CAM systems, 3D scanning, single point incremental forming, CNC milling and rapid prototyping are highlighted.

Occurrence and recovery of small-sized plastic debris from a Brazilian beach: characterization, recycling, and mechanical analysis

Small-sized plastic debris are an increasing global concern, particularly in environmental protected areas. Consequently, tourism-based economy of poor coastal regions is also impaired. Nevertheless, little interest has been shown about recycling approaches of such materials, mostly because of the natural degradation of polymers on these conditions. This research presents the report of the occurrence of plastic debris nearby Lençóis Maranhenses National Park, on the northeast Brazilian coast, aiming to provide a feasible method for recycling. We collected more than 80 samples from the sediment and classified them via FT-IR. Degraded polypropylene samples were selected for blending with virgin material using different concentration rates, and were mechanically tested. Tensile testing results suggest that 5% recycled material concentration mixture has suitable mechanical properties on the elastic regime for applications on new parts. Our findings show that particular interest should be addressed on the recovery of commodity plastic debris from environmental protected areas.

Development and Thermographic Analysis of Custom Seats for Wheelchairs

The design of Assistive Technology products has different technological routes such as massive products or custom products. These products aim at optimize the altered bodily functions. With that it can re-conduct these people to varied social activities. In this sense, the present article focuses on contribute in the construction of new technological routes for the manufacturing of wheelchair custom seats. The methodology includes the application of concepts such as tridimensional digitizing, CNC machining and thermography. Those techniques have the purpose of generating and analyzing seats made from user’s anthropometric data.

Design and territory: laser cutting/engraving applied in the manufacture of products for the promotion of the "Pedra Grande" archeological site, RS, Brazil

The pursuit for knowing the peculiarities of each country or region takes millions of people to embark on journeys to various destinations. The curiosity about other cultures makes the tourism activity a means of learning the history of a place, including the knowledge of its monuments and archaeological sites. Museums have an important role regarding the disclosure of information on the human history legacy in different places and at different times. And their shops, by providing products, extend the visitors relationship with the place. São Pedro do Sul, located in Rio Grande do Sul, Brazil, holds the Pedra Grande Archeological Site, a monument of great historical and ethnographic importance of human occupation in the area. For the promotion of this heritage it becomes interesting to create strategies aimed at the dissemination and development of the museums that make up the cultural center of this city as tourist attractions. As a proposal to support these institutions, this study employs the technique of laser engraving for making objects that can be sold in their stores, diffusing the local culture and generating incomes for these establishments.