Automated system for welding-based rapid prototyping

Zhang, Yu Ming; Li, Pengjiu; Chen, Yiwei; Male, Alan T.

doi:10.1016/s0957-4158(00)00064-7

Cited by 98 publications

(40 citation statements)

References 5 publications

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“…Additional modern 3D printer improvements include printing in liquid metal droplets, 28 submicron photolithography for material removal in cellulose and other media, 29 3D printing of nanowalls made from electrospun nanofibers, 30 and 3D holographic lithography for near-instantaneous nanostructure fabrication in soft materials. 31 Weld-based additive manufacturing by gas metal arc welding, 32 powder bed sintering, 33 and electron beam free-form deposition 34 can produce heterogeneous structures if different filler metals, powder layers, or carrier gases are used, respectively. However, many of these techniques require large amounts of energy deposition, limiting their resolution.…”

Section: Background: Existing Methods Of 3d Printingmentioning

confidence: 99%

Conceptual Design of a Pick-and-Place 3D Nanoprinter for Materials Synthesis

CarlsonMax

YauKayen

Simpson

et al. 2015

3D Printing and Additive Manufacturing

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The past decade has seen revolutionary advances in three-dimensional (3D) printing and additive manufacturing. However, a technique to create 3D material microstructures of arbitrary complexity has not yet been developed. We present the conceptual design of a 3D material microprinter as a concrete step toward an eventual 3D material nanoprinter. Such a device would enable the use of heterogeneous starting materials with printing resolution on the order of tens of nanometers. By combining a pick-and-place particle transfer method with a custom-built laser sintering optical microscope, the core components of the 3D printer are once again reimagined. This advance moves toward generalized material synthesis as an experimental technique to complement computational materials discovery of materials with unique structures and high interface density, such as 3D nanocomposites, metamaterials, and photonic structures.

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Section: Background: Existing Methods Of 3d Printingmentioning

confidence: 99%

Conceptual Design of a Pick-and-Place 3D Nanoprinter for Materials Synthesis

CarlsonMax

YauKayen

Simpson

et al. 2015

3D Printing and Additive Manufacturing

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“…The WAAM process can be achieved through gas metal arc welding (GMAW), gas tungsten arc welding (GTAW), plasma arc welding (PAW), or cold metal transfer welding (CMT) for melting metal wires and constructing a 3D component layer by layer [50][51][52][53][54]. Among these, GMAW is limited by the minimum wall thickness and coarse sidewall surface owing to its relatively large melt pool and heat input [50,55,56]. To surpass the limitations, cold metal transfer welding (CMT) [57][58][59] can be adopted to achieve a very smooth droplet detachment by minimizing the arc burn time and moving the wire electrode back and forth at frequencies up to 150 Hz [60,61].…”

Section: Addilanmentioning

confidence: 99%

Wire Arc Additive Manufacturing of Stainless Steels: A Review

et al. 2020

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Wire arc additive manufacturing (WAAM) has been considered as a promising technology for the production of large metallic structures with high deposition rates and low cost. Stainless steels are widely applied due to good mechanical properties and excellent corrosion resistance. This paper reviews the current status of stainless steel WAAM, covering the microstructure, mechanical properties, and defects related to different stainless steels and process parameters. Residual stress and distortion of the WAAM manufactured components are discussed. Specific WAAM techniques, material compositions, process parameters, shielding gas composition, post heat treatments, microstructure, and defects can significantly influence the mechanical properties of WAAM stainless steels. To achieve high quality WAAM stainless steel parts, there is still a strong need to further study the underlying physical metallurgy mechanisms of the WAAM process and post heat treatments to optimize the WAAM and heat treatment parameters and thus control the microstructure. WAAM samples often show considerable anisotropy both in microstructure and mechanical properties. The new in-situ rolling + WAAM process is very effective in reducing the anisotropy, which also can reduce the residual stress and distortion. For future industrial applications, fatigue properties, and corrosion behaviors of WAAMed stainless steels need to be deeply studied in the future. Additionally, further efforts should be made to improve the WAAM process to achieve faster deposition rates and better-quality control.

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“…Automatic/robotic WAAM increases the efficiency of manufacturing and reduces the involved human intervention [4]. Robotic WAAM systems are required to provide not only predictable and efficient operations but also high morphological fidelity and geometric accuracy of the fabricated parts [5].…”

Section: Introductionmentioning

confidence: 99%