Results 71 to 80 of about 2,117,850 (329)
MetalsLaser-MIG hybrid welding and MIG welding were carried out on 7B52 aluminum alloy, and the microstructure and mechanical properties of the joints were compared and analyzed.
Yu Lu +4 more
doaj +1 more source
Metals, 2022 To understand the relationship between microstructure and corrosion, in this study, underwater bead-on-plate laser welding was compared with the in-air laser welding of 10-mm-thick 304 stainless steel plates at different laser powers (2, 4, and 6 kW ...
Danbi Song +3 more
doaj +1 more source
Classification of Spot-welded Joints in Laser Thermography Data using Convolutional Neural Networks [PDF]
arXiv, 2020 Spot welding is a crucial process step in various industries. However, classification of spot welding quality is still a tedious process due to the complexity and sensitivity of the test material, which drain conventional approaches to its limits. In this paper, we propose an approach for quality inspection of spot weldings using images from laser ...
arxiv
Maillard Type Reaction for Electroless Copper Plating onto Ceramic Nanoparticles
Advanced Engineering Materials, EarlyView.This work presents the manufacturing of copper‐plated ceramic nanoparticles in an environmentally friendly way. Supported by organic functionalizations with pectin an electroless plating step can be performed. Sustainable reagents like xylose, and several amino acids are used for the reduction process.
Lukas Mielewczyk +8 more
wiley +1 more source
An Optimal Control Problem for Single-Spot Pulsed Laser Welding [PDF]
arXiv, 2021 We consider an optimal control problem for a single-spot pulsed laser welding problem. The distribution of thermal energy is described by a quasilinear heat equation. Our emphasis is on materials which tend to suffer from hot cracking, such as aluminum alloys.
arxiv
Optimising the laser-welded butt-joints of medium carbon steel using RSM [PDF]
, 2005 The optimization capabilities in design-expert software were used to optimise the keyhole parameters (i.e. maximize penetration (P) and minimise the heat input, width of welded zone, (W) and width of heat affected zone (WHAZ)) in CW CO2 laser butt ...
Benyounis, Khaled +2 more
core +1 more source
Advanced Engineering Materials, EarlyView.This study investigates the bond quality of co‐extruded aluminum–titanium hybrid profiles, focusing on the lateral angular co‐extrusion (LACE) process. It examines how heat treatments (HT) affect intermetallic phase formation, bond strength, and material properties.
Norman Mohnfeld +9 more
wiley +1 more source
Frontiers in Materials, 2021 Direct laser welding, laser welding with Ti interlayer, and ultrasonic-assisted laser welding with Ti interlayer were used to join SiCp/6061 Al matrix composites.
Hongliang Li +6 more
doaj +1 more source
Fully-automatic laser welding and micro-sculpting with universal in situ inline coherent imaging [PDF]
, 2014 Though new affordable high power laser technologies make possible many processing applications in science and industry, depth control remains a serious technical challenge. Here we show that inline coherent imaging, with line rates up to 312 kHz and microsecond-duration capture times, is capable of directly measuring laser penetration depth in a ...
arxiv +1 more source
, 2010 Just after the introduction of the first laser by Maiman, in 1960, there has been a very fast evolution of this new technology characterized by the constant progression about techniques and applications, devices ever more efficient, smaller and cheaper, and the introduction of ever-new wavelengths. One interesting application of this new technology was
openaire +3 more sources