Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Hybrid Additive Manufacturing of Parts with Relatively Complex Geometry by 3D Printing in Segments with Uniform Thickness, Variable Height Per Radius, and Constant Filament Feed Rate

Version 1 : Received: 19 September 2023 / Approved: 19 September 2023 / Online: 20 September 2023 (10:01:14 CEST)

How to cite: Claudiu, N.D.; Pancu, R.; Grebenișan, G. Hybrid Additive Manufacturing of Parts with Relatively Complex Geometry by 3D Printing in Segments with Uniform Thickness, Variable Height Per Radius, and Constant Filament Feed Rate. Preprints 2023, 2023091380. https://doi.org/10.20944/preprints202309.1380.v1 Claudiu, N.D.; Pancu, R.; Grebenișan, G. Hybrid Additive Manufacturing of Parts with Relatively Complex Geometry by 3D Printing in Segments with Uniform Thickness, Variable Height Per Radius, and Constant Filament Feed Rate. Preprints 2023, 2023091380. https://doi.org/10.20944/preprints202309.1380.v1

Abstract

This paper presents an original method of additive manufacturing of cylindrical parts with variable circumference thickness, which allows the control of the deposition of molten material using an algorithm for decomposing the part geometry into volumetric elements with known dimensional configuration. In the absence of a post-processor capable of controlling additive manufacturing on a 5-axis numerical control machine, control of the deposition of molten material is done using parameterized programs, which can control both the feed speeds of the machine tool axes and the specific functions of the printing equipment. Additive manufacturing can make a positive contribution to sustainable development compared to traditional manufacturing technologies, thus making a positive contribution for a sustainable future. The aim of the work is to make it possible to 3D print parts with variable wall thickness using a CNC machining centre. To obtain the variable thickness layer we have implemented an original method of deposition with molten material (FDM), the coordination of the system composed of physical elements respectively programmable elements, is realized through control functions materialized in parameterized part programs, the generated outputs being the variable speed of the machine axes on a circular trajectory, the angular positioning, the filament advance.

Keywords

additive manufacturing technologies; sustainable development; parametrized programs; computer numerical control; variable thickness deposition; mathematical model

Subject

Engineering, Mechanical Engineering

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