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The weaving process is constantly evolving in terms of productivity, quality, and possibilities of fabrication of different fabric structures and shapes. This article covers some issues that have still not been resolved and represents distracting factors in the woven fabrics production. In the development of woven fabric using the CAD technology, it is inevitably a deviation of the virtual image on the computer screen from the woven sample. According to comprehensive industry analyses, the findings of many authors who contributed to the resolution of these problems can be concluded that these problems are still present in the development and production of striped, checkered, and jacquard woven fabrics. In this article, jacquard, multicolor woven fabrics were investigated, with deviations in pattern sizes and shades of color in warp and weft systems compared to virtual simulation on the computer, as well as the tendency of the weft distortion arising from the weaving process leading to the pattern deformation.
Increasing machining accuracy realized on CNC machine tools causes that the more frequently surfaces machined with this technique are not subject to further finishing processing and directly affects on the final quality of the product. Achieving geometric accuracy established by the constructor is the problem that modern technologists and CAD/CAM programmers have to faced with. The paper presents the influence of toolpath tolerance and machining strategy available in CAD/CAM software on the constituting process of technological surface layer for elements limited with curvilinear surfaces. The impact of the above mentioned parameters on the location and direction of geometrical deviations were also analyzed. Following article is part of research of the impact of selected technological parameters on the freeform surfaces geometric structure manufactured on CNC machines
This paper presents the machining process of the complex copper electrodes. Machining of the complex shapes in copper is difficult because this material is soft and sticky. This research presents the main steps for processing those copper electrodes at a high dimensional accuracy and a good surface quality. Special tooling solutions are required for this machining process and optimal process parameters have been found for the accurate CNC equipment, using smart CAD/CAM software.
Introduction. The most frequent oral complications of diabetes are periodontal disease and caries. If left untreated, these may lead to tooth loss, with a significant psychological impact, especially in young patients. Case report. This case report presents a type 1 diabetes young female patient with periodontal disease, poor decay control and tooth loss, that create functional and esthetic issues. After consulting the diabetes specialist, an interdisciplinary dental treatment plan which comprise surgical, periodontal, endodontic and prosthetic rehabilitation was initiated. Long-term provisional computer-aided design and computer-aided manufacturing (CAD-CAM) fixed partial dentures were fabricated to stabilize the occlusion and to obtain in short term an optimal functional and esthetic rehabilitation. Conclusion. This case reveals a consistent collaboration between the prosthodontist, periodontist and endodontist, with an effective monitoring from the diabetes specialist, that conduct to a successful oral rehabilitation for a young female patient with type I diabetes.