Ultrasonic tab welding

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okashira
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Re: Ultrasonic tab welding

Post by okashira » Dec 19, 2017 11:47 pm

Are you going to be using it long term? How is it working out?
"Peace out - I'm done."
-- Bernhard Riemann, 1859

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Inwo
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Re: Ultrasonic tab welding

Post by Inwo » Dec 20, 2017 12:23 am

Haven't decided.
Trying to learn what it can do. No help from manufacturer at all.
If I can learn the limitations of 800 watt it will be helpful.
I don't believe I'm able to use all the power.
Needs more pressure maybe? I'm over 500psi now.
All I can do is weld two .35mm tabs together.

https://youtu.be/4ECL24WzP1w

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Inwo
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Re: Ultrasonic tab welding

Post by Inwo » Dec 29, 2017 1:04 am

Update after a few changes to increase pressure.

https://youtu.be/Onxfpvg8_6I

Now able to weld 4 layers at once for making 2p modules.
Was finished when thought of video. 2 layers shown.
Some sticking to horn, but I can live with it until someone shares the solution.
It may need to release pressure while still welding. That may be bad for welder. I have no idea.🤔

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Inwo
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Re: Ultrasonic tab welding

Post by Inwo » Dec 29, 2017 1:22 am

A little more information for anyone following.
I loaded the spring pressure so as gearmotor near stalls on cam lobe.
Makes it about a 2second cycle.
Welder foot switch starts the cycle. Welder output can be delayed. I have .5sec delay, then 1.25sec weld time.

I need a way to monitor on time for better adjustment. If nothing else, an inline ammeter on input may suffice. May be something built in, but the rep doesn't even know about the weld delay and auxiliary output to control press.

On a good weld display shows .46a after a weld. No idea if I'm using near capacity. Again there is zero support. 😣

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Inwo
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Joined: Dec 13, 2016 12:01 pm
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Re: Ultrasonic tab welding

Post by Inwo » Dec 29, 2017 2:17 am

Surprise surprise,
My welder guy answered a question!

2amps is maximum welder power.
That means I can do a lot more, if only I knew how.
It must be all about down pressure.

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