ELI5: Explain Like I'm 5

Single-pass bore finishing

Single-pass bore finishing is a process where a tool is inserted into a cylindrical object, called a bore, to smooth and refine its surface.

Imagine you are playing with play-dough and you roll it into a cylinder. The outside might feel smooth, but if you look closely, the surface actually has small bumps and grooves on it. In a similar way, when metal cylinders are produced through manufacturing, they may have imperfections on their surface.

To fix these imperfections, manufacturers use single-pass bore finishing, which is a way of smoothing out the inside of the cylinder. The process involves placing a special tool called a honing stone inside the cylinder and moving it back and forth while also rotating it. The honing stone has small abrasive particles on its surface that scrape and smooth out the inside of the cylinder.

Think of it like brushing your teeth. You move the toothbrush back and forth while rotating it to clean your teeth. In the same way, the honing stone moves back and forth while rotating to clean the inside of the cylinder.

This process is done in a single pass, meaning the honing stone only needs to move through the cylinder once to achieve a smooth finish. Once finished, the bore is more precise and has fewer imperfections. This can improve the performance and lifespan of the cylinder, making it a crucial step in the manufacturing process.