Results 81 to 90 of about 3,324 (206)

Plastic deformation and microstructure evolution in pure copper during ultrasonic welding

open access: yesHanjie xuebao
The formation process of pure copper joints by ultrasonic welding is determined by interfacial plastic deformation and grain microstructure evolution. However, the understanding of the ultrasonic welding mechanism for pure copper is still unclear.
Huan LI   +5 more
doaj   +1 more source

FLEXIBLE NONCONVENTIONAL HYBRID WELDING SYSTEM FSW-US

open access: yesNonconventional Technologies Review, 2021
Welding and metalworking technologies, which use ultrasonic vibration either as a primary source to achieve the prescribed operation or as an auxiliary source to improve operation efficiency and product quality, are current in international and applied ...
Octavian Victor Oanca   +3 more
doaj  

Ultrasonically welding electric terminals [PDF]

open access: yes, 1976
The ultrasonic welding of electrical terminations was investigated for use on foil conductor terminations. Cleaning, surface finish, and plating were evaluated to determine their effects on ultrasonic weldability. The external application of heat was studied to observe any improvement in material weldability.
openaire   +2 more sources

Numerical Prediction of Deformation‐Induced Martensitic Transformation in Cold‐Sprayed Austenitic Stainless Steel

open access: yessteel research international, EarlyView.
Cold spray deposition of stainless steel (grade: SS304) is evaluated for marine applications, with emphasis on martensitic transformation during impact. Analytical modeling, simulations, and experiments reveal that helium‐assisted spraying of fine powders promotes cooling below the martensitic start temperature, enabling up to ≈40% austenite to ...
Cal Vin Wong   +4 more
wiley   +1 more source

Effect of tin coating on properties of ultrasonic welded joints of copper wires

open access: yesHanjie xuebao
This paper presents ultrasonic welding tests conducted separately on tin-plated and bare copper wires. It examines the temperature at their welding joints and analyzes joint performance under various welding energies.
Weiyi LYU   +4 more
doaj   +1 more source

Non‐Destructive Inspection of TCPs Using Pulse‐Echo Ultrasound and X‐Ray Microcomputed Tomography Techniques

open access: yesX-Ray Spectrometry, EarlyView.
ABSTRACT Thermoplastic composite pipes (TCPs) have potential applications in offshore oil and gas industries because of their strength, lack of corrosion, and flexibility. Designed for fluid transportation in high‐pressure and high‐temperature environments, manufacturing defects and operational loads can compromise their performance.
Marcella Grosso Lima   +10 more
wiley   +1 more source

Non‐destructive orientation tracking of individual β‐Sn grains in die‐attach solder joints

open access: yesJournal of Synchrotron Radiation, EarlyView.
This study introduces inclined scanning three‐dimensional X‐ray diffraction microscopy (i‐S3DXRD) that enables three‐dimensional orientation mapping of planar polycrystalline materials, revealing the thermal fatigue mechanism of Pb‐free solder joints.Understanding the failure mechanisms of Pb‐free solder joints during thermal cycling is a critical ...
Jaemyung Kim   +4 more
wiley   +1 more source

Ultrasonic Welding of PEEK Plates with CF Fabric Reinforcement-The Optimization of the Process by Neural Network Simulation. [PDF]

open access: yesMaterials (Basel), 2023
Alexenko VO   +7 more
europepmc   +1 more source

From plant to fabric: Environmental opportunities associated with annatto dye for sustainable development in the textile industry

open access: yesColoration Technology, EarlyView.
Abstract Natural dyes are compounds that occur naturally in several organisms and are classified based on chemical structure and application method. The literature cites several natural dyes used in industrial transformation processes. Annatto dye is used in the food industry, and its biological pigment is extracted from the annatto seed. However, this
Marcel Jefferson Gonçalves   +5 more
wiley   +1 more source

Home - About - Disclaimer - Privacy