Robotics Additive Manufacturing

Robotic additive manufacturing using a cold spray deposition head attached to a robotic arm is a technology that can deposit material in a solid state with deposition rates in kilograms per hour. Under such a high deposition rate, any deviation in the part geometry during the process can negatively affect the shape and size of the final manufactured object. In-process spatio-temporal 3D reconstruction, also known as 4D reconstruction, allows for early detection of deviations from the design in robotic additive manufacturing, thus providing the opportunity to rectify at an early stage, making the process more robust, efficient and productive. However, in-process model reconstruction is challenging due to the dynamic nature of the scene (e.g. sensor and object relative movements), the three-dimensional growth of a time-varying build object, the texture-less nature of build surfaces, and its computational complexity.  

Chew, Sun Yeang, Ehsan Asadi, Alejandro Vargas-Uscategui, Subash Gautam, Peter King, Alireza Bab-Hadiashar and Ivan Cole. “In-Process 4d Reconstruction for Robotic Additive Manufacturing.” Under Review(2023). 

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