Abstract Additive manufacturing (AM) has faced challenges in achieving the part accuracy required for industrial adoption. Most research has focused on offline inspection of geometric deviations in test parts. This paper introduces a novel approach to enhance part accuracy and process control in Polymer Extrusion AM (MEX/P) by integrating in-situ [...]
Abstract The processes utilized for Additive Manufacturing (AM) production of metallic parts usually entail the use of hazardous feedstocks, expensive production equipment, and high energy consumption. Metal Material Extrusion AM (MEX/M) presents an alternative multi-step approach that addresses these challenges by additively extruding polymer-metal composite filaments, constructing a green part. [...]
Abstract: The industrial adoption of material extrusion of polymers (MEX/P) is hindered by the geometric quality of manufactured parts. Contact image sensors (CISs), commonly used in flatbed scanners, have been proposed as a suitable technology for layer-wise characterization of contour deviations, paving the way for the application of corrective measures. [...]
Abstract: Additive manufacturing processes are opening up a world of possibilities towards obtaining parts with complex geometry and adjustable properties. Its impact in sectors such as biomechanics, energy or aerospace is already appreciable, but the forecasts point to a real revolution linked to the development of different technologies of additive [...]
Abstract: This paper presents the integration of a conoscopic holography sensor (CH) in a machining centre (MC) by means of a centralized control on the machine's CNC (CNC centralized control). Besides the installation and extrinsic calibration of the sensor, the primary focus is the automation of the freeform digitizing process on the MC itself. [...]
Abstract: This work analyses the directional effect shown by the high-density point clouds digitized with a conoscopic holography (CH) sensor. The asymmetric shape of the laser spot for this sensor yields directionality to appear along the largest spot dimension and to occur repeatedly under different working conditions. To study this effect, several digitizing tests [...]
Abstract: This work analyses the directional effect shown by the point clouds when digitizing with a conoscopic holography (CH) sensor. The asymmetric shape of the laser spot for this sensor yields that directionality appears along the greatest spot length and it occurs repeatedly under different working conditions. To study this [...]
Abstract: The current productivity requirements to facilitate the rapid delivery of high-quality products to market in which the accuracy achieved in the manufacturing plays a prominent role, have promoted significant advances in the machining and inspection phases on CNC machines. On Machine Measuring techniques (OMM) stands out among these advances, [...]
Abstract: The current requirement of precision on freeform surface machining, as well as productivity necessities which facilitate the supply of high-quality products to the market, have promoted an important progress on integration of machining and inspection stages on machining centres. On Machine Measuring techniques (OMM) stand out among these advances, [...]
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