Peening

When you play with Play-Doh, have you ever noticed how it becomes smoother and stronger when you press it with your fingers or a tool? That's kind of like what peening is!

Peening is a special way of hitting metal with a tool called a peening hammer. This hammer has a round end that's used to hit the metal in a special way. When you hit the metal with the peening hammer, it pushes the metal out to make it stronger and smoother.

The metal can become stronger because the peening hammer makes lots of little dents in it. These dents help make the metal strong like a honeycomb!

Sometimes people peen metal when they want to make it look really smooth or shiny. Other times, they peen the metal to make it stronger so it can last longer.

So remember, just like playing with Play-Doh to make it stronger and smoother, peening is a way of hitting metal to make it stronger and smoother.