Okay kiddo, today we're going to talk about x-ray welding. You know how we usually use fire to melt things together when we want to join two pieces of metal? Well, x-ray welding is kind of like that, but it uses a special kind of electric current instead of fire.
So first, let's talk about what x-rays are. Have you ever gone to the dentist and had an x-ray of your teeth taken? It's when they put a little machine up to your mouth and it takes a picture of your teeth from the inside. X-rays are a type of energy that can pass through things, like your teeth or your body. They can also be used to see inside things like machines or buildings.
Now, in x-ray welding, we use a very strong electric current to make a little lightning bolt between two pieces of metal. This lightning bolt is called an arc. The arc gets so hot that it melts the metal and fuses it together. But, we can't see inside the metal to make sure that the weld is good and strong.
That's where x-rays come in. After we make the weld, we take an x-ray picture of it. This lets us see inside the metal to make sure that the weld is strong and there aren't any tiny cracks or holes in it. Just like how the dentist takes an x-ray to make sure your teeth are healthy!
So, x-ray welding is a way to join two pieces of metal together using a very hot electric current and then checking to make sure the weld is strong and healthy using x-rays. It's like magic!