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A comparative study of continuous-wave versus pulsed-wave laser emission in direct laser metal deposition of SS316L thin walls [PDF]

open access: yesScientific Reports
Direct Laser Metal Deposition (DLMD), as a Directed Energy Deposition (DED) technique, can operate either continuous-wave (CW) or pulsed-wave (PW) laser emission, resulting in distinctly different thermal histories during material deposition.
Omid Mehrabi   +4 more
doaj   +2 more sources

Effects of direct metal deposition combined with intermediate and final milling on part distortion

open access: yesVirtual and Physical Prototyping, 2019
Combining direct metal deposition and milling in one machine promises the additive fabrication of complex parts with a high surface quality and dimensional accuracy. However, residual stress induced by the additive process can impair the final part shape
Daniel Eisenbarth   +2 more
doaj   +2 more sources

An investigation of the effect of direct metal deposition parameters on the characteristics of the deposited layers

open access: yesCase Studies in Thermal Engineering, 2014
AbstractMultilayer direct laser deposition (DLD) is a fabrication process through which parts are fabricated by creating a molten pool into which metal powder is injected as particles. During fabrication, complex thermal activity occurs in different regions of the build; for example, newly deposited layers will reheat previously deposited layers.
Tarak Amine   +2 more
exaly   +2 more sources

Influence of aluminium powder aging on Directed Energy deposition

open access: yesMaterials & Design, 2022
The use of aluminium alloys for Additive Manufacturing is of high interest for advanced geometries and lightweight applications. In Directed Energy Deposition, a powder stock is processed with a laser beam, which offers a high process flexibility ...
Adrien Da Silva   +10 more
doaj   +1 more source

A New Approach to the Formation of Nanosized Gold and Beryllium Films by Ion-Beam Sputtering Deposition

open access: yesNanomaterials, 2022
Thin films of beryllium and gold that are several tens of nanometers thick were obtained, for the first time, on silicon and quartz substrates by the ion-beam method with tenfold alternation of deposition and partial sputtering of the nanosized metal ...
Sergei A. Sharko   +8 more
doaj   +1 more source

Friction and Wear Behavior of Direct Metal Deposition on SUH3 [PDF]

open access: yesArchives of Metallurgy and Materials, 2019
Poppet valves made from high-frequency heat-treated SUH3 steel have insufficient durability, and scratches appear on the valve face in prolonged use.
Byungjoo Choi   +4 more
doaj   +1 more source

Method of scanning thin surfaces in repairing gas turbine blades

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2023
Improving the efficiency of weld overlay repair of gas turbine blades by developing and implementing a method of scanning complex curved surfaces of gas turbine blades directly on the machine is the aim of this work.
D. I. Kotlyar, A. N. Lomanov
doaj   +1 more source

Microstructural Analysis of Asymmetric Dilution by Rotating Direct Metal Deposition [PDF]

open access: yesArchives of Metallurgy and Materials, 2019
In this study, cross-section analysis was performed on a novel rotating direct-metal deposition method capable of preliminary surface treatment and damage repair of cylindrical inner walls.
Byungjoo Choi   +4 more
doaj   +1 more source

Using a Trial Sample on Stainless Steel 316L in a Direct Laser Deposition Process

open access: yesMetals, 2021
Direct laser deposition technology is used for the manufacture of large-size products with complex geometries. As a rule, trial samples with small dimensions are made to determine the deposition parameters. In order for the resulting products to have the
Artur Vildanov   +4 more
doaj   +1 more source

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