Thermal study during milling of Ti6Al4V produced by Electron Beam Melting (EBM) process

Milton, Samuel; Duchosal, Arnaud; Chalon, Florent; Leroy, René; Morandeau, Antoine

doi:10.1016/j.jmapro.2018.12.027

Cited by 13 publications

(3 citation statements)

References 25 publications

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“…This was attributed to higher work-hardening in the investigated PBF-EB/Ti6Al4V material caused by thicker, more frequently observed α-grain boundary layers in this material as well as the presence of Widmanstätten α-colonies and intergranular α-lath structure. Milton et al [114,115] also studied the machinability of PBF-EB/Ti6Al4V and PBF-LB/Ti6Al4V compared to that of wrought material (as the reference material) in two separate studies. Higher cutting forces and temperatures were reported when machining PBF-EB material compared to those measured when machining the wrought material, resulting in 50% shorter tool life when machining PBF-EB/Ti6Al4V under similar cutting conditions.…”

Section: Milling and Micro-millingmentioning

confidence: 99%

Post-processing of additively manufactured metallic alloys – A review

Malakizadi

Mallipeddi

Dadbakhsh

et al. 2022

International Journal of Machine Tools and Manufacture

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Section: Milling and Micro-millingmentioning

confidence: 99%

Post-processing of additively manufactured metallic alloys – A review

Malakizadi

Mallipeddi

Dadbakhsh

et al. 2022

International Journal of Machine Tools and Manufacture

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“…Similarly, in the case of surface roughness, the surface roughness of the DMSL is more minor compared to EBM. Milton et al (2019) consider the Ti6Al4V material in the powdered form to manufacture part at the EBM process. The research was aimed at the determination of temperature and forces at the cutting zone.…”

Section: Background Workmentioning

confidence: 99%

A physical investigation of dimensional and mechanical characteristics of 3D printed nut and bolt for industrial applications

Chand

Sharma

Trehan

et al. 2022

RPJ

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Purpose A nut bolt joint is a primary device that connects mechanical components. The vibrations cause bolted joints to self-loosen. Created by motors and engines, leading to machine failure, and there may be severe safety issues. All the safety issues and self-loosen are directly and indirectly the functions of the accuracy and precision of the fabricated nut and bolt. Recent advancements in three-dimensional (3D) printing technologies now allow for the production of intricate components. These may be used technologies such as 3D printed bolts to create fasteners. This paper aims to investigate dimensional precision, surface properties, mechanical properties and scanning electron microscope (SEM) of the component fabricated using a multi-jet 3D printer. Design/methodology/approach Multi-jet-based 3D printed nut-bolt is evaluated in this paper. More specifically, liquid polymer-based nut-bolt is fabricated in sections 1, 2 and 3 of the base plate. Five nuts and bolts are fabricated in these three sections. Findings Dimensional inquiry (bolt dimension, general dimensions’ density and surface roughness) and mechanical testing (shear strength of nut and bolt) were carried out throughout the study. According to the ISO 2768 requirements for the General Tolerances Grade, the nut and bolt’s dimensional examination (variation in bolt dimension, general dimensions) is within the tolerance grades. As a result, the multi-jet 3D printing (MJP)-based 3D printer described above may be used for commercial production. In terms of mechanical qualities, when the component placement moves from Sections 1 to 3, the density of the manufactured part decreases by 0.292% (percent) and the shear strength of the nut and bolt decreases by 30%. According to the SEM examination, the density of the River markings, sharp edges, holes and sharp edges increased from Sections 1 to 3, which supports the findings mentioned above. Originality/value Hence, this work enlightens the aspects causing time lag during the 3D printing in MJP. It causes variation in the dimensional deviation, surface properties and mechanical properties of the fabricated part, which needs to be explored.

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“…[ 20 ] The AM with electron beam as a heat source is suitable for producing parts with high purity and easy oxidation. [ 21 ] The AM with arc as a heat source has the advantages of high deposition rate, low equipment cost, and suitable for large‐scale components. [ 22–25 ] Nowadays, various AM techniques have been applied to the production of Inconel 625 alloy parts, [ 7 ] such as selective laser melting (SLM), directed energy deposition (DED), laser metal fusion (LMF), electron beam melting (EBM), and wire arc additive manufacture (WAAM).…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Mechanical Properties of Thick‐Walled Inconel 625 Alloy Manufactured by Wire Arc Additive Manufacture with Different Torch Paths

Jiang

Zhang

et al. 2020

Adv Eng Mater

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Wire arc additive manufacture (WAAM) technology has attracted more and more attention. WAAM technology provides a way to manufacture a large‐scale part at a low cost and with less material loss. Inconel 625 alloys are widely used for their excellent mechanical properties and corrosion resistance. Therefore, it is important to investigate the performance of Inconel 625 alloy in WAAM. Herein, cold metal transfer (CMT) arc is used as the heat source to fabricate thick‐walled parts of Inconel 625 alloy by WAAM, and study the difference between microstructure and mechanical properties under the different torch trajectories. The result shows that the grains inside the parts are all thick dendrites and show the trend of epitaxial growth. The thermal input of the oscillation additive is higher than the two‐pass multilayer additives, and the Laves phase also precipitated more. The maximum tensile strength occurs in parallel sampling close to the substrate, which is 693.5 ± 12.6 and 751.2 ± 17.6 MPa in oscillation and two‐pass multilayer modes, respectively. The maximum elongation is obtained in the vertical direction is 60 ± 1.0% and 60 ± 1.1%. The anisotropies are 4% and 4.5%, respectively. The maximum hardness value under the two torch trajectories also appears close to the substrate.

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Thermal study during milling of Ti6Al4V produced by Electron Beam Melting (EBM) process

Abstract: Thermal study during milling of Ti6Al4V produced by Electron Beam Melting (EBM) process.

Cited by 13 publications

References 25 publications

Post-processing of additively manufactured metallic alloys – A review

Post-processing of additively manufactured metallic alloys – A review

A physical investigation of dimensional and mechanical characteristics of 3D printed nut and bolt for industrial applications

Microstructure and Mechanical Properties of Thick‐Walled Inconel 625 Alloy Manufactured by Wire Arc Additive Manufacture with Different Torch Paths

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