Results 71 to 80 of about 59,193 (237)

Comparative Numerical Analysis of Keyhole Shape and Penetration Depth in Laser Spot Welding of Aluminum with Power Wave Modulation

Thermo
Keyhole mode laser welding is a valuable technique for welding thick materials in industrial applications. However, its susceptibility to fluctuations and instabilities poses challenges, leading to defects that compromise weld quality.
Saeid SaediArdahaei, Xuan-Tan Pham
doaj   +1 more source

Influence of Surface State in Micro-Welding of Copper by Nd:YAG Laser

Applied Sciences, 2018
Laser welding of copper is characterized by low and unstable light absorption around 1000 nm wavelength. Combination of high thermal conductivity and low melting point makes it difficult to obtain good welding quality and leads to low energy utilization.
Martin Ruthandi Maina, Yasuhiro Okamoto, Reiki Inoue, Shin-ichi Nakashiba, Akira Okada, Tomokazu Sakagawa   +5 more
doaj   +1 more source

Vision-aided Monitoring and Control of Thermal Spray, Spray Forming, and Welding Processes [PDF]

, 1993
Vision is one of the most powerful forms of non-contact sensing for monitoring and control of manufacturing processes. However, processes involving an arc plasma or flame such as welding or thermal spraying pose particularly challenging problems to ...
Agapakis, John E., Bolstad, Jon
core   +1 more source

Metallographic evaluation of the weldability of high strength aluminium alloys using friction spot welding [PDF]

, 2017
Friction spot welding is a recent solid-state welding technique well suited for spot-joining lightweight materials in overlap condition. Aerospace and transport industries show great interest in this technique to join high-strength aluminium alloys, but ...
De Waele, Wim, Faes, Koen, Vercauteren, Jeroen   +2 more
core   +1 more source

Fiber Bragg Grating Force Sensors for Minimally Invasive Surgery: State of the Art, Challenges, and Opportunities

SmartBot, EarlyView.
This article reviews the application of fiber Bragg grating (FBG) technology for precise force sensing in minimally invasive surgery. It outlines the fundamental working principles and algorithms used to interpret sensor data. The text surveys clinical applications across various medical fields, such as ophthalmology and vascular intervention (Table of
Shiyuan Dong, Tianqi Huang, Lingyu Chen, Shucong Yin, Qing Chang, Dingpei Han, Yangxi Li, Boyu Zhang, Hongen Liao, Fang Chen   +9 more
wiley   +1 more source

Microflow of fluorescently labelled red blood cells in tumours expressing single isoforms of VEGF and their response to VEGF-R tyrosine kinase inhibition [PDF]

, 2009
This paper was presented at the 2nd Micro and Nano Flows Conference (MNF2009), which was held at Brunel University, West London, UK. The conference was organised by Brunel University and supported by the Institution of Mechanical Engineers, IPEM, the ...
2nd Micro and Nano Flows Conference (MNF2009), Akerman, S, Bjorndahl, MA, Evans, H, Fisher, M, Pettyjohn, KL, Reyes-Aldasoro, CC, Tozer, GM   +7 more
core  

Probing ISM Structure in Trumpler 14 & Carina I Using The Stratospheric Terahertz Observatory 2 [PDF]

, 2019
We present observations of the Trumpler 14/Carina I region carried out using the Stratospheric Terahertz Observatory 2 (STO2). The Trumpler 14/Carina I region is in the west part of the Carina Nebula Complex, which is one of the most extreme star-forming
Bernasconi, Pietro N., Burton, Michael G., Davis, Kristina, Gao, Jian Rong, Goldsmith, Paul F., Groppi, Christopher, Hollenbach, David J., Horiuchi, Shinji, Kavak, Umit, Kawamura, Jonathan H., Kuiper, Thomas B., Kulesa, Craig, Langer, William D., Melnick, Gary, Peters, William L., Pineda, Jorge L., Rebolledo, David, Seo, Young Min, Shipman, Russ, Stark, Antony, Tielens, Alexander, Tolls, Volker, van der Tak, Floris F. S., Walker, Chris, Wolfire, Mark G., Wong, Graeme F., Yorke, Harold, Young, Abram, Young, Erick   +28 more
core   +4 more sources

Tailoring Laser Powder Bed Fusion and Post‐Processing Parameters for JIS SKD61 Tool Steels: Surface Roughness, Microstructure, and Mechanical Properties

steel research international, EarlyView.
Laser powder bed fusion of JIS SKD61 tool steel is systematically optimized using a Taguchi design and ANOVA. Hatch spacing and layer thickness are identified as dominant parameters controlling surface roughness and tensile strength. Subsequent tempering at 600°C improves microstructural stability and mechanical performance, enabling high‐density SKD61
Masrurotin Masrurotin, Andi Ard Maidhah, Maziar Ramezani, Wojciech Macek, Cho‐Pei Jiang   +4 more
wiley   +1 more source

The access and invasiveness-based classification of medical procedures to clarify non-invasive from different forms of minimally invasive and open surgery

Journal of Minimal Access Surgery
Background: The rapid development of less invasive and traumatic medical procedures has resulted in a mixture of terms used to describe them, without any agreed definition for each.
Mark Steven Whiteley, Sienna Esme Davey, Gabriel Mark Placzek   +2 more
doaj   +1 more source

Micro‐Mechanism Informed Neural Networks for Process‐Property Prediction in Laser Powder Bed Fusion

Artificial Intelligence for Engineering, EarlyView.
Hard physics embedding, where neural networks learn residuals relative to analytical baselines, substantially outperforms soft loss‐function constraints for extrapolation in LPBF process–property prediction. Physics integration architecture determines generalization capability more than constraint quantity.
Yo‐Lun Yang
wiley   +1 more source