Results 111 to 120 of about 908 (188)
A study of weld quality in ultrasonic spot welding of similar and dissimilar metals
, 2012 Several difficulties are faced in joining thinner sheets of similar and dissimilar materials from fusion welding processes such as resistance welding and laser welding. Ultrasonic metal welding overcomes many of these difficulties by using high frequency
Lucas, M., Al-Sarraf, Z.
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Programmable Fabric‐Based Soft Pneumatic Actuators for Wearables: A Review
Small Structures, Volume 7, Issue 6, June 2026.This review summarizes recent advances in fabric soft pneumatic actuators (FSPAs), emphasizing programmable design strategies, diverse actuation deformation modes, material selection, and emerging applications. We highlight how geometric constraints, material distribution, and specialized fabrication methods govern longitudinal, bending, torsional, and
Zichao Ling +4 more
wiley +1 more source
Effect of Vibration Amplitude and Welding Force on Weld Strength of Ultrasonic Metal Welding
Journal of Applied Mechanical Engineering, 2015 Ultrasonic metal welding has been the subject of ongoing research and development, most recently concentrating on metal joining in miniature devices, for example to allow solder-free wire bonding. As well as at the small scale, there are also opportunities to research the joining of thicker sheet metals and to widen the range of similar and dissimilar ...
openaire +1 more source
Ultrasonic Welding of Polyamide and Polycarbonate Plates
, 2010 Ultrasonic welding of plastic is state-of the-art technology. The thermal rise in the bonding area is produced by absorption of vibrations introduced. In the contraction area, frictional heat is produced so that material plasticizes locally, forging an ...
Frank Helmut Schaefer
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Coloration Technology, Volume 142, Issue 3, Page 333-353, June 2026.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
Polish Maritime ResearchITo address limitations of poor arc stability and inadequate weld quality in conventional underwater wet welding for marine structural repairs, this study developed an ultrasonic-frequency pulsed (UFP) assisted underwater wet welding (UFP-UWW) process by
Li Hongliang +6 more
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Microstructure evolution of AA6061 under ultrasonic welding
, 2009 Ultrasonic metal welding can be used to join two metal foils. There are two different effects under ultrasonic welding. They are surface effect and volume effect. These two effects were validated under macro experiments.
Zhu, Z., Ghassemieh, E., Ma, G.
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A series-parallel load-resonant converter for a controlled-current arc-welding power supply [PDF]
A power supply incorporating a series-parallel load-resonant converter, capable of very efficient operation over a wide range of output power is presented. The series-parallel load-resonant converter is shown to have three pairs of resonant frequencies.
Pollock, Helen Geraldine Phyllis
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Hanjie xuebaoAluminum/magnesium alloys have increasingly important applications in the lightweight design and manufacturing of launch vehicles due to their excellent mechanical properties. The bodies and body cover panels of new energy vehicles contain numerous three-
Dewang ZHAO +4 more
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Soldagem subaquatica molhada com eletrodo tubular [PDF]
, 1995 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro TecnologicoSão identificadas as causas básicas da instabilidade do arco e interrupção do processo na soldagem subaquática molhada com eletrodo tubular, e propostas soluções para as ...
Andrade, Leone Peter Correia da Silva
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