Ultrasonic welding is a little-known technique that allows various metals and ceramics to be welded together that is not normally possible. It requires a special ultrasonic soldering iron and solder that is not cheap or easy to obtain, so [Ben Krasno] of [Applied Science] made it myself.
An ultrasonic soldering iron heats like a standard soldering iron, but it also requires an ultrasonic transducer to form a bond with certain surfaces. [Ben] Build one by welding a stainless steel rod (as a thermal interrupter) between the standard iron element and the transducer of the ultrasonic cleaner. He made his special active solder by melting all the ingredients in a vacuum induction furnace. It is similar to lead-free solder, but also contains titanium and a small amount of cerium and gallium. In the video below, [Ben] introduced the working details of the technology in detail, and conducted some practical experiments on various materials.
Ultrasonic welding is mainly used for electric welding metals that cannot or are inconvenient to clamp. The result is not as neat and clean as standard solder. We introduced another DIY ultrasonic soldering iron before, but it seems that the person has never done any soldering.
There are several interesting mechanical applications of ultrasonic energy, which we have introduced in the past, including ultrasonic cutting and ultrasonic welding.
When you compare with other elements, which is correct, the “I” in our (UK) is wrong. 
I still don’t understand why it is pronounced sardar. How do Americans pronounce “shoulder”, maybe shardar?
Wikipedia says: “The forms of place names have been different in history, with the addition of early English and subsequent Norman French”
This tradition continues in the Middle East #9: Tissa (Hebrew) Tisha (Arabic) Left: Smol (Hebrew) Shmol (Arabic)
I don’t know why the British call the drive shaft a drive shaft. A car is not a boat, and a car has no props. I just think that every culture will do some strange things, they don’t know why they do it, they just do it, because that is what they have been doing. If it doesn’t hurt anyone, it doesn’t matter.
I can give you an academic answer, involving the etymology of the name, how the pronunciation of the letters changes over time, how English is a mixture of other languages, according to the different pronunciation of the original language, but in fact it is just to confuse foreigners and choose to be As a second language learner
this. You try to be on an island with several super ancient languages, and then be continuously invaded by all your (friendly) neighbors while continuing their words.
By the way, what is a capacitor? It is especially disturbing when they are found to be baked or fried. I have never seen resistors or transistors on the menu. inductance? Condenser? Reluctant person?
It may be the same reason why English speakers in many regions do not pronounce the letter “r” followed by a consonant. Natural language has evolved geographically.
It will be interesting (for future generations) to see if it still exists, or if we all say the same thing after several generations have grown up with the Internet.
No, you didn’t. But you need a vacuum induction furnace and pure silver, cerium, gallium and titanium.
Or a convincing corporate entity may request samples from the manufacturer, which may be cheaper and easier.
There is no problem at all to obtain pure silver, titanium and gallium. Cerium is also easily available. If needed, you can extract it from Zippo lighter flint.
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Post time:Dec-01-2021