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・ Ultrasonic hearing
・ Ultrasonic horn
・ Ultrasonic hydroponic fogger
・ Ultrasonic impact treatment
・ Ultrasonic machining
・ Ultrasonic motor
・ Ultrasonic nozzle
・ Ultrasonic pulse velocity test
・ Ultrasonic soldering
・ Ultrasonic Studios, New Orleans
・ Ultrasonic testing
・ Ultrasonic thickness gauge
・ Ultrasonic thickness measurement
・ Ultrasonic toothbrush
・ Ultrasonic transducer
Ultrasonic welding
・ Ultrasonic/sonic driller/corer
・ Ultrasonication-assisted spray ionization
・ Ultrasonics (journal)
・ Ultrasonix Medical Corporation
・ Ultrasound
・ Ultrasound (band)
・ Ultrasound (disambiguation)
・ Ultrasound 1997–2003
・ Ultrasound attenuation spectroscopy
・ Ultrasound avoidance
・ Ultrasound biomicroscopy
・ Ultrasound computer tomography
・ Ultrasound energy
・ Ultrasound Identification


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Ultrasonic welding : ウィキペディア英語版
Ultrasonic welding

Ultrasonic welding is an industrial technique whereby high-frequency ultrasonic acoustic vibrations are locally applied to workpieces being held together under pressure to create a solid-state weld. It is commonly used for plastics, and especially for joining dissimilar materials. In ultrasonic welding, there are no connective bolts, nails, soldering materials, or adhesives necessary to bind the materials together.
== History ==
Practical application of ultrasonic welding for rigid plastics was completed in the 1960s. At this point only hard plastics could be welded. The patent for the ultrasonic method for welding rigid thermoplastic parts was awarded to Robert Soloff and Seymour Linsley in 1965.〔Close up on technology: Top 50 Update Who Was First In Hot Runners, Ultrasonic Welding, & PET?, Plastics Technology〕 Soloff, the founder of Sonics & Materials Inc., was a lab manager at Branson Instruments where thin plastic films were welded into bags and tubes using ultrasonic probes. He unintentionally moved the probe close to a plastic tape dispenser and the halves of the dispenser welded together. He realized that the probe did not need to be manually moved around the part but that the ultrasonic energy could travel through and around rigid plastics and weld an entire joint.〔 He went on to develop the first ultrasonic press. The first application of this new technology was in the toy industry.〔Welding Still Ensures High-Strength Joints, Assembly Magazine〕
The first car made entirely out of plastic was assembled using ultrasonic welding in 1969.〔 Even though plastic cars did not catch on, ultrasonic welding did. The automotive industry has used it regularly since the 1980s.〔 It is now used for a multitude of applications.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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