Results 31 to 40 of about 20,778 (247)

Quality prediction of disturbed ultrasonic metal welds

open access: yesJournal of Advanced Joining Processes, 2022
Published by Elsevier ...
M��ller, Florian Werner   +2 more
openaire   +3 more sources

Development of Nickel-Titanium Graded Composition Components [PDF]

open access: yes, 2004
The potential of various manufacturing methods was evaluated for producing nickel-titanium graded composition material. The selected test case examined attachment brackets that join nickel-based metallic thermal protection systems to titanium-based ...
Baughman, J. M., Domack, M. S.
core   +1 more source

The technology of thermal welding of the circulation piping of NPPS containing the influence of ultrasound

open access: yesNuclear Energy and Technology, 2017
The authors propose a thermal welding technology with ultrasound treatment for NPP circulation pipe-lines. This technology can significantly increase the strength of welded connections by reducing residual stresses, grain size and welded joint degassing.
S.I. Minin, A.I. Trofimov, M.A. Trofimov
doaj   +1 more source

Influence of Single-Sided Ultrasonic Assistance on the Double-Sided Welding Forming Quality of Q355 Thin Plates

open access: yesMetals
To solve the problems of large deformation and poor welding quality commonly observed during the double-sided welding of Q355 thin plates, this study systematically investigated the effects of single-sided ultrasonic-assisted welding on the weld ...
Peng Yin   +5 more
doaj   +1 more source

Microstructure investigation and optimization of process parameters of ultrasonic welding for Al–Cu dissimilar joints using design of experiment

open access: yesJournal of Materials Research and Technology
Ultrasonic Metal Welding (UMW) employs high-power ultrasonic vibrations to join thin metal sheets of different materials, effectively addressing the thermal damage issues associated with traditional welding methods.
Negin Goodarzi   +2 more
doaj   +1 more source

Ultrasonic Inspection of a 9% Ni Steel Joint Welded with Ni-based Superalloy 625: Simulation and Experimentation

open access: yesMetals, 2018
The ultrasonic inspection of thick-walled welded joint with austenitic weld metal has proven to be a challenge due to its anisotropic microstructure that can promote ultrasonic waves attenuation.
João da Cruz Payão Filho   +5 more
doaj   +1 more source

Development of a High-Frequency Test System to Study the Wear of Ultrasonic Welding Tools

open access: yesMetals, 2023
In current automotive lithium-ion battery manufacturing, Ultrasonic Metal Welding (USMW) is one of the major joining techniques due to its advantages in welding multiple thin sheets of highly conductive materials.
Junqi Li, Michael Rienks, Frank Balle
doaj   +1 more source

Three-dimensional simulation of finite element ultrasonic welding of aluminum alloy AA-6061

open access: yesJournal of Mechanical Engineering and Sciences
Ultrasonic metal welding is often used as a rapid and effective technique for joining sheet metals without causing them to melt. Precise management of the welding process parameters is crucial for achieving excellent joint quality. However, modeling the
My Nu Ho Thi   +2 more
doaj   +1 more source

Multi-Spot Ultrasonic Welding of Aluminum to Steel Sheets: Process and Fracture Analysis

open access: yesMetals, 2021
Ultrasonic metal welding is an energy-efficient, fast and clean joining technology without the need of additional filler materials. Single spot ultrasonic metal welding of aluminum to steel sheets using automotive materials has already been investigated.
Michael Becker, Frank Balle
doaj   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

open access: yesAdvanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar   +2 more
wiley   +1 more source

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