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The rake angles and the cores of the end-mill cutting tools are very important for they control the cutting forces during machining, the strength of the cutting edges, the rigidity of the end-mills and the chips removal capability. Thus, grinding end-mill flutes with accurate rake angles and accurate cores is very crucial in cutting tools’ industry. Flutes grinding is normally accomplished using two...
This paper addresses the use of structural dynamics concepts applied to virtual manufacturing. A review of vibration fundamentals is done using a single degree of freedom system. Then, a lab procedure to experimentally determine the frequency response functions and vibration modes of a steel beam by modal fitting is explained. An introduction to receptance coupling substructure analysis is then provided,...
A growing need exists for gesture customization in mobile interaction design. However, two problems hinder gesture customization: (1) lack of sensors available in daily mobile life and (2) difficulty with defining three-dimensional gestures intuitively. In order to resolve these problems, we present CompositeGesture, a mobile application that allows users to customize gestures using the sensors of...
Key objectives of ‘Industry 4.0’ methodologies in manufacturing include improved quality control, predictive maintenance and tracking. We consider whether a further objective that can easily and cost-effectively be achieved is the implementation of aggressive optimization of production schedules across multiple manufacturing lines. The present contribution describes how this objective can be achieved...
The design of a successful exoskeleton device starts with the definition of a set of requirements according to the intended task and with the selection of the appropriate kinematic structure. Despite this, however, most authors barely report details relative to these activities and the decisions behind them. This article explores the conceptual design for linkage-driven underactuated hand exoskeletons...
In this paper, most significant steps involved during the whole process of designing a sailing yacht are outlined. In particular, a novel simultaneous approach has been proposed to optimize the design process of a sailing yacht. Analytical resistance prediction models are simultaneously used with CAD systems and computational fluid dynamics tools to find, in the more effective way, the best solution...
Medical devices play a crucial role in all diagnosis, care and treatment of patients and the number and variety of medical devices is huge and increasing annually. Healthcare professionals handle a wide range of devices every day. In this paper 3D Web-based interactive learning applications, which provide a helpful background, reminder and practical training to medical devices, have been developed...
While teams and projects tend to be multi-domain, the infrastructure required to integrate and build prototypes lags behind to allow an efficient interaction and to offer multi-disciplinary facilities. Hence this paper presents an infrastructure approach developed in a Latin American academic context, where the concept of an Engineering Building is explained in order to support the demands of a 3rd...
In most of the surrounding discrete products, style plays a very important role. Specifically, color has a great impact in the visual perception, and its meaning can vary depending on the context where the product is located. Anyway, there are not dedicated applications devoted to support designers during this activity of color selection in the conceptual stage of the product design process. In this...
This work proposes a methodology to automatically diagnose and formalize prenatal cleft lip with representative key points and identify the type of defect (unilateral, bilateral, right, or left) in three-dimensional ultrasonography (3D US). Differential Geometry has been used as a framework for describing facial shapes and curvatures. Then, descriptors coming from this field are employed for identifying...
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