Abrasive jet machining is like playing with sandpaper, but instead of using our hands, we use a machine. The machine shoots tiny particles of abrasive material, like sand or aluminum oxide, at the thing we want to scratch or cut. These particles move super-fast and cause tiny scratches on the surface of the material.
Imagine you have a big piece of chocolate cake that you want to cut into smaller pieces. You could use a knife and cut it, but that takes a lot of time and effort. Instead, you could use an abrasive jet machine to shoot tiny pieces of sand at the cake. The sand particles will scratch the cake and eventually cut it into smaller pieces.
Now, let's say you want to make something really cool out of metal. You could use a saw or a drill to cut the metal, but that could damage it or take a long time. With an abrasive jet machine, we can shoot tiny particles of aluminum oxide at the metal to slowly and carefully cut it into the shape we want.
So, just like rubbing sandpaper against something can scratch or cut it, using an abrasive jet machine can also scratch or cut things, but with more precision and control.