shape control Archives - Archès Lab https://www.archeslab.polimi.it/tag/shape-control/ Architected Heterogeneous Structures Laboratory in Politecnico di Milano. Fri, 21 Mar 2025 08:56:41 +0000 en-US hourly 1 https://www.archeslab.polimi.it/wp-content/uploads/2024/01/cropped-favicon-32x32.png shape control Archives - Archès Lab https://www.archeslab.polimi.it/tag/shape-control/ 32 32 Enhanced geometrical control in cold spray additive manufacturing through deep neural network predictive models https://www.archeslab.polimi.it/enhanced-geometrical-control-in-cold-spray-additive-manufacturing-through-deep-neural-network-predictive-models/ Fri, 21 Mar 2025 08:55:16 +0000 https://www.archeslab.polimi.it/?p=2092 We are pleased to share our most recent publication “Enhanced geometrical control in cold spray additive manufacturing through deep neural network predictive models” in Virtual and Physical Prototyping. This study introduces a computationally efficient framework that combines an adaptive slicing algorithm and process-specific toolpath planning strategies, designed to optimise deposit accuracy and material efficiency with […]

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We are pleased to share our most recent publication “Enhanced geometrical control in cold spray additive manufacturing through deep neural network predictive models” in Virtual and Physical Prototyping.

This study introduces a computationally efficient framework that combines an adaptive slicing algorithm and process-specific toolpath planning strategies, designed to optimise deposit accuracy and material efficiency with respect to the model of the part to fabricate. Central to this approach is the integration of predictive models for cold spray deposition, which utilise deep neural networks trained on data from physics-based analytical models.

The framework demonstrates significant improvements in efficiency and accuracy over conventional approaches, paving the way for broader adoption of cold spray additive manufacturing in complex industrial applications.

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Cold Spray Additive Manufacturing: A Review of Shape Control Challenges and Solutions https://www.archeslab.polimi.it/cold-spray-additive-manufacturing-a-review-of-shape-control-challenges-and-solutions/ Fri, 07 Mar 2025 10:10:38 +0000 https://www.archeslab.polimi.it/?p=2080 We are excited to share the most recent publication from Archès Lab: “Cold Spray Additive Manufacturing: A Review of Shape Control Challenges and Solutions”. Cold Spray is gaining attention in additive manufacturing for its fast deposition rates, minimal thermal effects, and flexibility in material selection and part size. However, shape control remains a key challenge. […]

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We are excited to share the most recent publication from Archès Lab: “Cold Spray Additive Manufacturing: A Review of Shape Control Challenges and Solutions”.

Cold Spray is gaining attention in additive manufacturing for its fast deposition rates, minimal thermal effects, and flexibility in material selection and part size. However, shape control remains a key challenge. The low resolution of spray spots often leads to waviness, tapering, and edge losses, making it harder to achieve precise geometries.

This review takes a closer look at the current efforts to characterize and predict Cold Spray deposit shapes and explores strategies for improving geometrical control, including advanced trajectory planning techniques.

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Deposit shape control for local repair and welding by cold spray https://www.archeslab.polimi.it/deposit-shape-control-for-local-repair-and-welding-by-cold-spray/ https://www.archeslab.polimi.it/deposit-shape-control-for-local-repair-and-welding-by-cold-spray/#respond Fri, 19 Jan 2024 11:25:48 +0000 https://www.archeslab.polimi.it/?p=1529 Cold spray (CS) has proven to be a versatile deposition method with considerable capabilities in multiple fields including coating, additive manufacturing, and repair. Despite the significant progress in new applications of cold spray, there are still several challenges associated with controlling the shape of cold spray deposits that consequently affect their range of application and functionality. In this […]

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Cold spray (CS) has proven to be a versatile deposition method with considerable capabilities in multiple fields including coating, additive manufacturing, and repair. Despite the significant progress in new applications of cold spray, there are still several challenges associated with controlling the shape of cold spray deposits that consequently affect their range of application and functionality. In this study, we discuss and demonstrate a new application of CS to connect adjoining edges along with repair local damages, focusing on deposit shape prediction. To do so, we start by proposing a numerical model that can predict the CS deposit geometry, by providing specific input parameters for a given set of particle and substrate properties, substrate geometry and nozzle position. Then we employ this numerical method to design the toolpath required for filling the artificial local damages and/or the welding grooves with controlled geometries. Through comparing the predictions with the shape of experimentally obtained depositions, we propose some corrections for the model. In both local repair and welding cases, the experimental results show a great resemblance to the predicted deposit profile and after applying the corrective measures, to the deposit height.



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