Results 101 to 110 of about 10,533 (306)

Aplicação da aspersão térmica na soldagem em operação de tubulações com pequena espessura remanescente [PDF]

, 2008
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Mecânica.A soldagem em operação é uma técnica freqüentemente empregada no reparo ou modificação de tubulações, com significativas ...
Novicki, Nilceu
core  

3D‐Nanoprinted Fluidically Steerable Soft Robotic Microcatheters

Advanced Robotics Research, EarlyView.
This work introduces a ∼3‐French (1 mm‐in‐diameter) soft robotic microcatheter fabricated by means of two‐photon direct laser writing. The 3D‐printed microcatheter enables remote, on‐demand steering via microfluidic actuation for guidewire‐free navigation of vascular networks as well as microcatheter‐mediated delivery of fluidic payloads to target ...
Bailey M. Felix, Molly Carton, Olivia M. Young, Noah Barnes, Jordi T. Andreou, Sarah McHugh, Jack E. McCann, Claudia Davis, Victoria Reddig‐Leiman, Afsah Kamran, Dheeraj Gandhi, Miroslaw Janowski, Jeremy D. Brown, Mark Fuge, Axel Krieger, Clifford R. Weiss, Christopher R. Bailey, Ryan D. Sochol   +17 more
wiley   +1 more source

Analysis on influence and mechanism of oscillating laser wire-feed welding process on weld formation of TC4 titanium alloy

Hanjie xuebao
In order to investigate the law of influence and mechanism of oscillating laser wire-feed welding for titanium alloys on weld formation, surfacing experiments on the surface of TC4 plates were conducted, and the welding process was observed using a high ...
Qingjie SUN, Jiawei GUO, Wei XU, Junzhao LI, Qinghua ZHANG, Xianshan ZENG, Yibo LIU   +6 more
doaj   +1 more source

Mechanical characterisation and modelling of resistance welding [PDF]

, 2010
Resistance welding is used very extensively in industry for a wide range of applications. Knowledge and measurement of the dynamic characteristics of resistance welding equipment is important in the design of the equipment and in optimization of ...
Van Rymenant, Patrick
core  

Formation of Weld Crater in GMAW of Aluminum Alloys [PDF]

, 2009
Both mathematical modeling and experiments have been conducted on the formation of the crater formed in a GMAW of aluminum alloy 6005-T4. Transient weld pool shape and the distributions of temperature and velocity were calculated by a three-dimensional ...
Tsai, Hai-Lung, Guo, Hao, Hu, J., Hu, Junling, Guo, Huang   +4 more
core   +1 more source

Advances in Electroactive Liquid Crystal Elastomers for Intelligent Robotics and Electronics

Advanced Robotics Research, EarlyView.
Electroactive liquid crystal elastomers (eLCEs) integrate molecular anisotropy with electrical functionality to enable programmable actuation and reconfigurable electronics. This review classifies eLCEs into robotic actuators and adaptive electronics, summarizes key actuation mechanisms, and highlights fabrication strategies that bridge materials to ...
Kavita Ramesh Rathod, Sena Chon, Jae Hyuk Hwang, Sung Hyuk Park, Woohwa Lee, Joonmyung Choi, Shi Hyeong Kim, Seung Hwan Ko, Changsoon Choi, Seon Jeong Kim, Dong‐Gyun Kim, Habeom Lee, Kyung Gook Cho, Woon‐Hong Yeo, Hyun Kim   +14 more
wiley   +1 more source

High‐Throughput Data Generation and Transfer Learning Enabled Microstructure‐Property Integrated Design of Nickel‐Based Powder Metallurgy Superalloy

Advanced Science, EarlyView.
An integrated transfer learning framework integrates CALPHAD simulations, diffusion‐multiple experiments, and literature data to predict long‐term microstructural stability and short‐term mechanical properties of Ni‐based powder metallurgy superalloys. Based on these model predictions, a high‐performance, low‐density alloy, USTB‐PM750, is designed from
Zixin Li, Hongtao Zhang, Zichao Peng, Yuheng Zhang, Qian Lv, Yihuan Cao, Xuqing Wang, Huadong Fu, Jianxin Xie   +8 more
wiley   +1 more source

Machine learning and molecular dynamics simulations aided insights into condensate ring formation in laser spot welding

Scientific Reports
Condensate ring formation can be used as a benchmark in welding processes to assess the efficiency and quality of the weld. Condensate formation is critical as the resulting condensate settles into the powder thereby altering the quality of ...
Ankit Roy, Lance Hubbard, Nicole R. Overman, Kevin R. Fiedler, Diana Horangic, Floyd Hilty, Mitra L. Taheri, Daniel K. Schreiber, Matthew J. Olszta   +8 more
doaj   +1 more source

Microstructure and mechanical properties of 7050-T7451 high-strength aluminum alloy joints by laser-arc hybrid welding

Cailiao gongcheng
To promote the further application of high-strength aluminum alloys in the aviation field，the 7050-T7451 aluminum alloy with 4 mm thickness is carried out by laser-melt inert-gas（MIG）hybrid welding.
XU Fei, GAO Wenqiang, LIU Bin, LEI Pengcheng   +3 more
doaj   +1 more source

Control of Porosity and Spatter in Laser Welding of Thick AlMg5 Parts Using High-Speed Imaging and Optical Microscopy

Metals, 2017
We report on a feedback mechanism for rapid identification of optimal laser parameters during welding of AlMg5 coupons using real-time monitoring by high-speed imaging.
Andrei C. Popescu, Christophe Delval, Marc Leparoux   +2 more
doaj   +1 more source