Repurposing mainstream CNC machine tools for laser-based additive manufacturing

Jones, Jason B.

doi:10.1117/12.2217901

Cited by 8 publications

(10 citation statements)

References 12 publications

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“…El objetivo principal de este estudio es descubrir las ventajas que trae consigo la AM en su utilización para crear placas de circuito impreso, y es aquí donde nos centraremos y hablaremos de las disciplinas de la AM que se orienten a este fin. Se afirma que la AM es típicamente más lenta al procesar un material que su contraparte por mecanizado a control numérico por computadora [11].…”

Section: Sustento Teoricounclassified

Advantage of additive manufacturing in printed board circuits

Delcid¹,

Avila²,

Perdomo³

2020

Proceedings of the 18th LACCEI International Multi-Conference for Engineering, Education, and Technology: Engineering, Integrat

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Currently, there is access to a variety of technologies that bring countless benefits to the industry every day, among them we find additive manufacturing, which is recognized worldwide for 3D printing. However, there are different branches or families in which this technology can be classify, this study focuses on the printing of electronic circuits through additive manufacturing. With the aim of identifying the advantages that this technology brings, against traditional technologies such as subtractive manufacturing in electronic circuits. Using a mixed methodology, these advantages are defined by analyzing the machining time as a dependent variable, various tests are carried out using additive manufacturing oriented and a subtractive one, where the most important results are the multiplatform work of the additive manufacturing against their extended machining times, it means, the time of the subtractive processes is approximately 8% of those employed in the other technology. Finally, it is concluded that additive manufacturing has a variety of advantages but that the use of subtractive technologies is more productive for the industry.

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Section: Sustento Teoricounclassified

Advantage of additive manufacturing in printed board circuits

Delcid¹,

Avila²,

Perdomo³

2020

Proceedings of the 18th LACCEI International Multi-Conference for Engineering, Education, and Technology: Engineering, Integrat

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“…To overcome these types of limitations, metal additive manufacturing technologies can be integrated and complemented with other technologies. This is the case with hybrid manufacturing (HM), where the customization capabilities and complexity of geometries of additive manufacturing are complemented by the high dimensional accuracy and surface quality of subtractive technologies such as computer numerical control (CNC) machining [27][28][29]. However, these hybridizations require an extensive analysis for optimizing the numerous variables associated with both technologies, which vary significantly from one another, in addition to those introduced by the material to be manufactured.…”

Section: Introductionmentioning

confidence: 99%

Dimensional Characterization and Hybrid Manufacturing of Copper Parts Obtained by Atomic Diffusion Additive Manufacturing, and CNC Machining

Monzón,

Bordón,

Paz

et al. 2024

Materials

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The combination of Atomic Diffusion Additive Manufacturing (ADAM) and traditional CNC machining allows manufacturers to leverage the advantages of both technologies in the production of functional metal parts. This study presents the methodological development of hybrid manufacturing for solid copper parts, initially produced using ADAM technology and subsequently machined using a 5-axis CNC system. The ADAM technology was dimensionally characterized by adapting and manufacturing the seven types of test artifacts standardized by ISO/ASTM 52902:2019. The results showed that slender geometries suffered warpage and detachment during sintering despite complying with the design guidelines. ADAM technology undersizes cylinders and oversizes circular holes and linear lengths. In terms of roughness, the lowest results were obtained for horizontal flat surfaces, while 15° inclined surfaces exhibited the highest roughness due to the stair-stepping effect. The dimensional deviation results for each type of geometry were used to determine the specific and global oversize factors necessary to compensate for major dimensional defects. This also involved generating appropriate over-thicknesses for subsequent CNC machining. The experimental validation of this process, conducted on a validation part, demonstrated final deviations lower than 0.5% with respect to the desired final part, affirming the feasibility of achieving copper parts with a high degree of dimensional accuracy through the hybridization of ADAM and CNC machining technologies.

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“…To that end, it is preferable to perform all processes in a single environment to maximize productivity, repeatability and process efficiency. The term Hybrid Manufacturing (HM), and, respectively, Hybrid Machine Tools (HMTs), refers to the combination of different manufacturing processes in a single work environment, preferably enclosed or otherwise restricted [1][2][3]. For the purposes of the present study, HMTs are called the Computerized Numerical Control (CNC) machine tools; their functions are controlled by a control unit or a computer, and they combine material removal stages, known as Subtractive Manufacturing (SM), and material addition stages, commonly addressed as 3D printing or, more formally, Additive Manufacturing (AM), for the manufacture of components in a sequential or a parallel manner [4,5].…”

Section: Introductionmentioning

confidence: 99%

Design and Analysis of a Desktop Multi-Axis Hybrid Milling-Filament Extrusion CNC Machine Tool for Non-Metallic Materials

Krimpenis

Iordanidis

2023

Machines

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Hybrid Manufacturing technologies enable the manufacturability and high manufacturing efficiency of innovative part designs comprising high complexity features which could not otherwise be manufactured in a single or a small number of steps. This study proposes the design of an industrial-grade low-cost fully automated multi-axis hybrid Additive and Subtractive CNC machine for non-metallic parts. It combines operations of a six-axis CNC machining center with a six-axis extrusion 3D printer with automated tool head change for processing parts made of polymer and special 3D printing materials (e.g., carbon fiber reinforced filaments). The design process includes static, dynamic and harmonic response Finite Element Analysis to optimize its structural strength and at the same time to reduce machine component costs down to a few thousand euros for all included components and subsystems, thus making it viable for industrial purposes. In investigated loading scenarios, analysis results show that at the brim of a 200 mm diameter round machine table, even at its most unfavorable angular positions, maximum deformation was no more than 0.24 mm, with a factor of safety in the magnitude of 10 to 20 while applying cutting force profiles with amplitudes up to 100 N, which exceedingly satisfies structural specifications for the proposed machine design operation.

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Repurposing mainstream CNC machine tools for laser-based additive manufacturing

Cited by 8 publications

References 12 publications

Advantage of additive manufacturing in printed board circuits

Advantage of additive manufacturing in printed board circuits

Dimensional Characterization and Hybrid Manufacturing of Copper Parts Obtained by Atomic Diffusion Additive Manufacturing, and CNC Machining

Design and Analysis of a Desktop Multi-Axis Hybrid Milling-Filament Extrusion CNC Machine Tool for Non-Metallic Materials

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