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Additive Manufacturing (AM) brought a revolution in parts design and production. It enables the possibility to obtain objects with complex geometries and to exploit structural optimization algorithms. Nevertheless, AM is far from being a mature technology and advances are still needed from different perspectives. Among these, the literature highlights the need of improving the frameworks that describe the design process and taking full advantage of the possibilities offered by AM. This work aims to propose a workflow for AM guiding the designer during the embodiment design phase, from the engineering requirements to the production of the final part. The main aspects are the optimization of the dimensions and the topology of the parts, to take into consideration functional and manufacturing requirements, and to validate the geometric model by computer-aided engineering software. Moreover, a case study dealing with the redesign of a piston rod is presented, in which the proposed workflow is adopted. Results show the effectiveness of the workflow when applied to cases in which structural optimization could bring an advantage in the design of a part and the pros and cons of the choices made during the design phases were highlighted.
Stefano Rosso; Federico Uriati; Luca Grigolato; Roberto Meneghello; Gianmaria Concheri; Gianpaolo Savio. An Optimization Workflow in Design for Additive Manufacturing. Applied Sciences 2021, 11, 2572 .
AMA StyleStefano Rosso, Federico Uriati, Luca Grigolato, Roberto Meneghello, Gianmaria Concheri, Gianpaolo Savio. An Optimization Workflow in Design for Additive Manufacturing. Applied Sciences. 2021; 11 (6):2572.
Chicago/Turabian StyleStefano Rosso; Federico Uriati; Luca Grigolato; Roberto Meneghello; Gianmaria Concheri; Gianpaolo Savio. 2021. "An Optimization Workflow in Design for Additive Manufacturing." Applied Sciences 11, no. 6: 2572.
Demand for innovation represents a driver not only in the industrial field but also in niche markets such as orthodontics. Among different type of orthodontic devices, functional appliances are used for the correction of class II skeletal malocclusion, mostly in young patients. In a previous study based on a systematic design approach, several concepts were generated for this device. This work shortly introduces the concept selection and the interactive design process of the device. The concept consisting of two-side guiding surfaces, obtained by TRIZ inventive principles, has been selected by the decision matrix. This concept consists in guiding the jaw movements without any connections between the parts of the device. Operating on patient morphometrics parameters, the proposed approach allows to establish a virtual interaction during the design of the device by facilitating the collaboration between orthodontist, dental technician, designer and the software, through a dedicated user interface. Dedicated algorithms were also developed to simulate the occlusion correction and the mandible path, and to support the geometric modelling in a virtual environment. As a result, the proposed approach allows manufacturing patient-customized devices using a digital interactive workflow in an innovative way.
Luca Grigolato; Stefano Filippi; Daniele Cantarella; Roberta Lione; Won Moon; Stefano Rosso; Roberto Meneghello; Gianmaria Concheri; Gianpaolo Savio. Concept selection and interactive design of an orthodontic functional appliance. International Journal on Interactive Design and Manufacturing (IJIDeM) 2020, 15, 137 -142.
AMA StyleLuca Grigolato, Stefano Filippi, Daniele Cantarella, Roberta Lione, Won Moon, Stefano Rosso, Roberto Meneghello, Gianmaria Concheri, Gianpaolo Savio. Concept selection and interactive design of an orthodontic functional appliance. International Journal on Interactive Design and Manufacturing (IJIDeM). 2020; 15 (1):137-142.
Chicago/Turabian StyleLuca Grigolato; Stefano Filippi; Daniele Cantarella; Roberta Lione; Won Moon; Stefano Rosso; Roberto Meneghello; Gianmaria Concheri; Gianpaolo Savio. 2020. "Concept selection and interactive design of an orthodontic functional appliance." International Journal on Interactive Design and Manufacturing (IJIDeM) 15, no. 1: 137-142.
Recent advances in additive manufacturing technologies demand for extremely customized, complex shape and multi-fold functional products. Heterogeneous objects, such as functionally graded materials, represent an attractive solution for researchers and industries in many application fields. Combining geometric modelling and material assignment in a definitive and accessible CAD tool is still a challenge. In this review the key aspects of heterogenous object representation related to additive manufacturing processes are reported. After the presentation of the various methodologies for geometric modelling found in the literature, additive manufacturing applications for heterogeneous objects are summarized. Keywords: Geometric modeling; Computational geometry; Additive manufacturing; CAD; FGM; Heterogeneous objects
Luca Grigolato; Stefano Rosso; Roberto Meneghello; Gianmaria Concheri; Gianpaolo Savio. Heterogeneous objects representation for Additive Manufacturing: a review. Instant Journal of Mechanical Engineering 2019, 1, 14 -23.
AMA StyleLuca Grigolato, Stefano Rosso, Roberto Meneghello, Gianmaria Concheri, Gianpaolo Savio. Heterogeneous objects representation for Additive Manufacturing: a review. Instant Journal of Mechanical Engineering. 2019; 1 (1):14-23.
Chicago/Turabian StyleLuca Grigolato; Stefano Rosso; Roberto Meneghello; Gianmaria Concheri; Gianpaolo Savio. 2019. "Heterogeneous objects representation for Additive Manufacturing: a review." Instant Journal of Mechanical Engineering 1, no. 1: 14-23.
The current requests for continuous innovation represent a challenge in every industry as well as in the field of orthodontics. Aim of this work was to develop new concepts of a functional appliance for the correction of class II skeletal malocclusion through a systematic design methodology. Staring at the existing devices in this field, taking into account the literature and the patient’s needs, the customers’ requirements were identified by Quality Functional Deployment. Systematic methods such as morphological method, theory of inventive problem solving and other creative methods were used for generating concepts some of which are presented at the end of the paper.
Luca Grigolato; Stefano Filippi; Daniela Barattin; Daniele Cantarella; Won Moon; Roberto Meneghello; Gianmaria Concheri; Gianpaolo Savio. Conceptual Design of a Functional Orthodontic Appliance for the Correction of Skeletal Class II Malocclusion. Lecture Notes in Mechanical Engineering 2019, 329 -341.
AMA StyleLuca Grigolato, Stefano Filippi, Daniela Barattin, Daniele Cantarella, Won Moon, Roberto Meneghello, Gianmaria Concheri, Gianpaolo Savio. Conceptual Design of a Functional Orthodontic Appliance for the Correction of Skeletal Class II Malocclusion. Lecture Notes in Mechanical Engineering. 2019; ():329-341.
Chicago/Turabian StyleLuca Grigolato; Stefano Filippi; Daniela Barattin; Daniele Cantarella; Won Moon; Roberto Meneghello; Gianmaria Concheri; Gianpaolo Savio. 2019. "Conceptual Design of a Functional Orthodontic Appliance for the Correction of Skeletal Class II Malocclusion." Lecture Notes in Mechanical Engineering , no. : 329-341.