Results 31 to 40 of about 21,821,173 (350)

Effect of high-pressure rolling followed by laser processing on mechanical properties, microstructure and residual stress distribution in multi-pass welds of 304L stainless steel [PDF]

open access: yes, 2016
Multi-pass fusion welding by a filler material (wire) is normally carried out to join thick steel sections used in most engineering applications. Multiple thermal cycles from a multi-pass weld resulted in a variable distribution of residual stress field ...
Ganguly, Supriyo   +3 more
core   +2 more sources

Laser Densification of Extruded Dental Porcelain Bodies in Multi-Material Laser Densification (MMLD) Process [PDF]

open access: yes, 2004
In this study commercial dental porcelain powder was deposited via slurry extrusion and laser densified to fabricate dental restorations in a Multi-Material Laser Densification (MMLD) process. The processing conditions for laser densification of single
Cameron, Thomas B.   +3 more
core   +1 more source

CFD MODEL OF LASER ADDITIVE MANUFACTURING PROCESS OF CYLINDERS

open access: yesSouth African Journal of Industrial Engineering, 2017
A theoretical approach based on a numerical simulation using experimental data is proposed as a contribution to the study of laser-based additive manufacturing by direct energy deposition (DED).
Tamsaout, Toufik   +4 more
doaj   +1 more source

Low-cycle Fatigue and Fracture Behaviour of 9%Ni Steel Flux Cored Arc Welding joint at Cryogenic Temperature [PDF]

open access: yesMATEC Web of Conferences, 2019
In the present work, low-cycle fatigue (LCF) test and crack tip opening displacement (CTOD) test were performed for 9% Ni steel flux cored arc welding (FCAW) joint at room temperature (296 K) and cryogenic temperature (80 K).
Mu Weidong   +3 more
doaj   +1 more source

Comparison of Laser-Engraved Hole Properties between Cold-Rolled and Laser Additive Manufactured Stainless Steel Sheets

open access: yesApplied Sciences, 2017
Laser drilling and laser engraving are common manufacturing processes that are found in many applications. With the continuous progress of additive manufacturing (3D printing), these processes can now be applied to the materials used in 3D printing ...
Matti Manninen   +3 more
doaj   +1 more source

Influence of oxygen pressure on the fs laserinduced oxidation of molybdenum thin films [PDF]

open access: yes, 2018
We present a study of femtosecond (1028 nm, 230 fs, 54.7 MHz) laser processing on molybdenum (Mo) thin films. Irradiations were done under ambient air as well as pure oxygen (O2) at various gauge pressures (4, 8, 12 and 16 psi). Our results indicate that
Aguilar, G   +5 more
core   +1 more source

Laser machining of transparent brittle materials: from machining strategies to applications

open access: yesOpto-Electronic Advances, 2019
Transparent brittle materials such as glass and sapphire are widely concerned and applied in consumer electronics, optoelectronic devices, etc. due to their excellent physical and chemical stability and good transparency.
Xie Xiaozhu   +4 more
doaj   +1 more source

As-fabricated surface morphologies of Ti-6Al-4V samples fabricated by different laser processing parameters in selective laser melting

open access: yes, 2020
The surface morphology of a product plays a crucial role under mechanical loading and chemical environment. Surfaces of Selective Laser Melting (SLM) products often contain high roughness, which varies in different planes as well.
Snehashis Pal   +6 more
semanticscholar   +1 more source

Toward white light emission from plasmonic-luminescent hybrid nanostructures

open access: yesNanophotonics, 2021
We study the light emission of plasmonic-luminescent hybrid nanostructures consisting of Ag nanoparticles (NPs) embedded in europium oxide (EuOX). The Ag NPs present a bidimensional organization in the nanostructures and they optically behave as oblate ...
Gomez-Rodriguez Pilar   +9 more
doaj   +1 more source

A Review of an Investigation of the Ultrafast Laser Processing of Brittle and Hard Materials

open access: yesMaterials
Ultrafast laser technology has moved from ultrafast to ultra-strong due to the development of chirped pulse amplification technology. Ultrafast laser technology, such as femtosecond lasers and picosecond lasers, has quickly become a flexible tool for ...
Jiecai Feng   +7 more
semanticscholar   +1 more source

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