Results 91 to 100 of about 10,533 (306)

Effect of welding thermal cycles on the heat affected zone microstructure and toughness of multi-pass welded pipeline steels [PDF]

open access: yes, 2012
This research is aimed at understanding the effect of thermal cycles on the metallurgical and microstructural characteristics of the heat affected zone of a multi-pass pipeline weld. Continuous Cooling Transformation (CCT) diagrams of the pipeline steel
Nuruddin, Ibrahim K.
core  

Large‐Area Printed PEDOT:PSS Shielding and Frequency Selective Surface (FSS) on Textiles

open access: yesAdvanced Materials Interfaces, EarlyView.
An all‐polymer e‐textile frequency selective surface (FSS) can present controlled shielding, presenting a competitive alternative to metal‐based inks. The results show how PEDOT: PSS‐based e‐textiles could be applied in RF devices for future wearable applications.
Benjamin King, Mahmoud Wagih
wiley   +1 more source

Laser welding characteristics of T-type lap joints for GH3128/GH3536 nickel-based superalloys

open access: yesHanjie xuebao
For GH3128/GH3536 nickel-based superalloys, a study was conducted on the formation quality, microstructure, and properties of laser-welded T-type lap joints.
Yunhao GONG   +5 more
doaj   +1 more source

Investigation of humping defect formation in a lap joint at a high-speed hybrid laser-GMA welding

open access: yesResults in Physics, 2019
Productivity rise can be realized at high-speed welding, but in a practice, the constraints emanate from the tolerance welding speed limit beyond which generate humping defects and the likes.
Philip Yamba   +4 more
doaj   +1 more source

Benchmarking Coaxial and Angular Optical Emission Spectroscopy With Recommendations for Reliable Compositional In Situ Monitoring During Laser Powder Bed Fusion

open access: yesAdvanced Materials Technologies, EarlyView.
ABSTRACT Real‐time insight into local chemistry is critical for reliable part quality in additive manufacturing, especially laser powder bed fusion (PBF‑LB/M), where rapid thermal cycles and localized evaporation can undermine part performance. Optical emission spectroscopy (OES) offers non‑intrusive, in situ plume monitoring, but detection geometry ...
Philipp Gabriel   +4 more
wiley   +1 more source

Weld formation and microstructure properties in laser welding of TC4 titanium alloy with activating fluxes of oxides and chlorides

open access: yesCailiao gongcheng
SiO2, TiO2, NaCl, and KCl are chosen as activating fluxes for laser welding of 5 mm thick TC4 titanium alloy to increase the laser absorptivity of base material and improve weld formation.
HOU Jijun, DONG Junhui, WU Xiaofang
doaj   +1 more source

An adaptive control system for off-line programming in robotic gas metal arc welding. [PDF]

open access: yes, 1997
The aim of this work was to develop an integration concept for using off-line programming in robotic gas metal arc welding of thin sheet steel. Off line -welding parameter optimization and on-line monitoring and adaptive control of process stability ...
Carvalho, G. C.
core  

Durability of Soft Pneumatic Actuators: A Review and Benchmarking Protocol

open access: yesAdvanced Robotics Research, EarlyView.
Lack of durability is a key challenge hindering the broad scale adoption of soft pneumatic actuators (SPAs) in automation industries. This review provides a comprehensive overview of existing research on SPA durability, introduces a standardized durability benchmarking protocol to consolidate the testing of SPAs, and outlines promising directions for ...
Dickson Chiu Yu Wong   +2 more
wiley   +1 more source

Analysis of arc behavior and weld forming in double-wire single-arc MAG welding controlled by longitudinal magnetic field

open access: yesHanjie xuebao
As a new type of high-efficiency welding process, the magnetically controlled double-wire single-arc MAG welding has poor arc controllability and is easily affected by external interference during the welding process.
Qian ZHANG   +4 more
doaj   +1 more source

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