Equal channel angular extrusion

Okay kiddo, let me explain what equal channel angular extrusion (ECAE) is in a way you can understand.

ECAE is a big word, but it's basically just a type of metalworking process where we take a long piece of metal and squeeze it through a special tool called a die. The die has two channels that are at an angle to each other, which is why it's called "angular" extrusion.

When we squeeze the metal through the die, it gets all squished up and forced to change shape. This makes the metal stronger and more durable, which is really helpful if we need it to be used for something important like building a car or an airplane.

But why do we call it "equal channel" extrusion? Well, that's because the two channels in the die have the same size and shape, so the metal gets squeezed equally on all sides as it passes through. This gives the metal a very consistent and uniform shape, which is also really helpful for making things like parts for machines or tools.

Overall, equal channel angular extrusion is just a fancy way to make metal stronger and more uniform in shape through a special squeezing process. Pretty cool, right?