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Ultrasonic welding

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Uploaded by on Feb 24, 2008

Welding an RFID chip in the head of a key.

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Science & Technology

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Standard YouTube License

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  • his voice reminds me of star wars :D

  • @jarjarbinx79 most likely MHz... 4.5 KHz is in the middle of the audible range so it's not even ultrasound, and probably couldn't produce enough heat from friction to do this.

  • @MR9966 that would most likely be 4.5 KHz. that means 4.5 thousand per second. 4.5 cycles would be a simple beat that is useless.

  • excellent. I am going to use this

  • that just sounded too cool :D

  • think of what SOUND can do.. omg now i see how dangerous big mouth ex was /.is..

  • @bassman7530. Foam earplugs may be ok as long as the decibels dont get to high the last time it was tested in the small room where I work it was round 120decibels and with my earmuffs on I could bearly hear it yet it was able to be heard in most other parts of the factory . I also work with welder for long shifts (8 hours) at some points up to 5 days a week . we get our hearing tested yearly and so far I have had no loss.

  • @coffebug You seem fairly knowledgable on ultrasonic welders, so I'd like to ask you a question. How efficiently will Grade 5 earmuffs reduce the volume you perceive in decibels? I do assembly in a factory and am required to use ultrasonic welders occasionally, and the standard hearing protection my plant offers is foam earplugs which reduce noise by about 30 decibels. Is that insufficient protection for such high-frequency pitches when working with an ultrasonic welder for a 9 hour shift?

  • @ Franky it's vibration . The horn puts pressure on the part to what ever psi you have it set heat is caused by amplitued for what ever you set the weld time to then hold time and horn resets to start position. And yes it can be very loud depending on what you are welding I use that type of machine daily (same brand). Grade 5 earmuffs must be worn at all times to prevent hearing loss.

  • how does it move... back and forth? side to side? or is it vibration? up and down?

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