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Process Planning for Additive Manufacturing of Geometries with Variable Overhang Angles using a Robotic Laser Directed Energy Deposition system

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Date

2022-01

Authors

Kaji, Farzaneh
Jinoop, Arackal Narayanan
Zimny, Mark
Frikel, German
Tam, Kyle
Toyserkani, Ehsan

Advisor

Journal Title

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Publisher

Elsevier

Abstract

In the present work, a novel Laser Directed Energy Deposition (LDED) process planning methodology is proposed to build a dome structure with variable overhang angles. Overhang structures with different overhang angles were built where the maximum angle of 35° can be used to build overhang structures without the process and structure compromise. The thin-wall hemispherical dome built using the developed methodology shows the maximum deviation of 2% with respect to the diameter of the original CAD model data. The study paves a way for building high-value, lightweight thin-walled structures with complex cylindrical-based shape (e.g., storage tanks, nozzles, combustion chambers) for engineering applications.

Description

Keywords

laser directed energy deposition, process planning, tool path generation, overhang geometry, additive manufacturing

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Citation