Trend of Metal 3D Printing by Welding

Byun, Jae-Gyu; Cho, Sang-Myung

doi:10.5781/jwj.2016.34.4.1

Cited by 23 publications

(8 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The additive manufacturing technology called 3D Printing is attracting attention as one of the representative technologies that can lead the 4th Industrial Revolution [ 2 ]. In fact, 3D printers are actively applied to various fields of electronics [ 3 ], telecommunications [ 4 ], biology [ 5 ], and industrial construction [ 6 ].…”

Section: Introductionmentioning

confidence: 99%

Mechanical Analysis of Ceramic/Polymer Composite with Mesh-Type Lightweight Design Using Binder-Jet 3D Printing

et al. 2018

View full text Add to dashboard Cite

3D printing technology has recently been highlighted as an innovative manufacturing process. Among various 3D printing methods, binder jetting (BJ) 3D printing is particularly known as technology used to produce the complex sand mold quickly for a casting process. However, high manufacturing costs, due to its expensive materials, need to be lowered for more industrial applications of 3D printing. In this study, we investigated mechanical properties of sand molds with a lightweight structure for low material consumption and short process time. Our stress analysis using a computational approach, revealed a structural weak point in the mesh-type lightweight design applied to the 3D-printed ceramic/polymer composite.

show abstract

Section: Introductionmentioning

confidence: 99%

Mechanical Analysis of Ceramic/Polymer Composite with Mesh-Type Lightweight Design Using Binder-Jet 3D Printing

et al. 2018

View full text Add to dashboard Cite

show abstract

“…The DED process utilizes the concept of cladding and welding processes [1-4, Fig. 1 Powder feeding methodologies of LAM-DED processes (Redrawn and modified figures of reference 57) [57]: (a) coaxial feeding and (b) off-axis feeding 6,8,24,32,[42][43][44][45][46][47][48][49][50][51][56][57][58][59][60]. Thermal energy, such as a laser, electron beam, welding heat flux, etc., is focused on the previous layer, as shown in Table 1 [1-4, 6, 8, 24, 32, 42-51, 56-62].…”

Section: Principle and Classification Of Ded Processesmentioning

confidence: 99%

“…PBF, including selective laser sintering (SLS), direct metal laser sintering (DMLS), selective laser melting (SLM), and electron beam melting (EBM) processes, and DED processes have been widely applied to academic researches, commercialized systems and industrial applications [1-4, 6, 24, 28, 32-34, 39-46]. The deposition rate and the volume density of the DED processes are greater than those of the PBF process, while the layer thickness, the surface roughness and the minimum feature size of the fabricated part by the PBF processes are relatively smaller than those by the DED process [4,24,40,42,[44][45][46][47][48]. The DED processes can create an arbitrary shape on even and uneven substrates through line-by-line deposition of a metallic material, unlike the PBF processes [32,49,50].…”

Section: Introductionmentioning

confidence: 99%

Directed Energy Deposition (DED) Process: State of the Art

Ahn

2021

Int. J. of Precis. Eng. and Manuf.-Green Tech.

368

View full text Add to dashboard Cite

Metal additive manufacturing technologies, such as powder bed fusion process, directed energy deposition (DED) process, sheet lamination process, etc., are one of promising flexible manufacturing technologies due to direct fabrication characteristics of a metallic freeform with a three-dimensional shape from computer aided design data. DED processes can create an arbitrary shape on even and uneven substrates through line-by-line deposition of a metallic material. Theses DED processes can easily fabricate a heterogeneous material with desired properties and characteristics via successive and simultaneous depositions of different materials. In addition, a hybrid process combining DED with different manufacturing processes can be conveniently developed. Hence, researches on the DED processes have been steadily increased in recent years. This paper reviewed recent research trends of DED processes and their applications. Principles, key technologies and the state-of-the art related to the development of process and system, the optimization of deposition conditions and the application of DED process were discussed. Finally, future research issues and opportunities of the DED process were identified.

show abstract

“…In the traditional subtract process approaches, such as cutting and machining, the productivity is low because of the high material loss when using a bulk material; furthermore, the cutting time is long and the lifecycle of machining tools is short. Therefore, in WAAM technology, a uniform bead geometry is critical to minimize the material loss from the cutting and machining process and to maximize economic efficiency [23][24][25]. In this study, to evaluate the deposition efficiency of continuously deposited thin-wall parts, the cross section of the deposited material was analyzed as shown in Figure 9.…”

Section: Efficiency Of Depositionmentioning

confidence: 99%

Evaluation of Bead Geometry for Aluminum Parts Fabricated Using Additive Manufacturing-Based Wire-Arc Welding

et al. 2020

View full text Add to dashboard Cite

The wire arc additive manufacturing (WAAM) process used to manufacture aluminum parts has a number of variables. This study focuses on the effects of the heat input and the current and voltage ratio on the deposition efficiency. The effects of the heat input and current and voltage ratio (V/A) on the bead geometry were analyzed, depending on the cross-sectional geometry of the deposition layers, for nine different deposition conditions. The deposition efficiency was also analyzed by analyzing the cross-sectional geometry of the thin-wall parts made of aluminum. The heat input range was about 2.7 kJ/cm to 4.5 kJ/cm; the higher the heat input, the higher the deposition efficiency. The maximum deposition efficiency achieved in this study was 76%. The current and voltage ratio was used to quantify the portion of voltage (V) in the total heat input (Q), and the effect on the bead geometry was analyzed. As the portion of voltage in the quasi heat input decreased by about 10%, it was found that the deposition efficiency was decreased by 1% to 3%.

show abstract

Trend of Metal 3D Printing by Welding

Cited by 23 publications

References 33 publications

Mechanical Analysis of Ceramic/Polymer Composite with Mesh-Type Lightweight Design Using Binder-Jet 3D Printing

Mechanical Analysis of Ceramic/Polymer Composite with Mesh-Type Lightweight Design Using Binder-Jet 3D Printing

Directed Energy Deposition (DED) Process: State of the Art

Evaluation of Bead Geometry for Aluminum Parts Fabricated Using Additive Manufacturing-Based Wire-Arc Welding

Contact Info

Product

Resources

About