Metalworking is an essential process for the manufacture of machinery and equipment components. The design of the die geometry is an essential aspect of metalworking, and directly affects the resultant product’s quality and cost. As a matter of fact, a comprehensive understanding of the die bearing geometry plays a vital role in the die design process. For the specific case of wire drawing, however, few efforts have been dedicated to the study of the geometry of the bearing zone. In this regard, the present paper involves an attempt to investigate the effects of different geometries of the die bearing. For different forms of reduction as well as bearing zones, measurements are carried out for the wire-drawing process. Subsequently, by extracting the friction coefficients from the electrolytic tough pitch copper wire in cold-drawn essays, the numerical simulations are also implemented. We present the results on both the superficial and center radial tensions obtained by finite element methods. It is observed that the reduction of the friction coefficient leads to an increase in radial stress, while for a given friction coefficient, the substitution of the C-type die by the R-type one results in a decrease in the superficial radial stress of up to 93.27%, but an increase at the center of the material. Moreover, the die angle is found to play a less significant role in the resultant center radial stress, but it significantly affects the superficial radial stress. Lastly, R-type dies result in smaller superficial radial stress, with a change of up to 34.48%, but a slightly larger center radial stress up to 6.55% for different die angles. The implications of the present findings are discussed.
New technological advances have been challenging professionals in education area to reach the new generation of students. Since this new generation is surrounded by this new technology, it is mandatory to associate new practices and teaching methods to their education plan. In this way, educators must reflect not only on their usual pedagogical practices but also in the efficacy of the method that has been practiced in the teaching and learning process. Technical Drawing is a discipline that takes place in High School programs in addition to Technical and Higher Education. It is directly influenced by this technological advance, once the student goes from the draw in the paper to the draw in computers during the classes and is encouraged to execute the projects that arise from the step-by-step draw. In this context, this work aimed to show a study performed during the Technical Drawing discipline to report a new structure in the educational methodology related to project-based learning. The focus of this study was to encourage students to develop a greater interest in engineering using project based learning and use this as a method for learning.
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