What is Honning? What is the function of honning fixture?

What is Honning? What is the function of honning fixture?

Honning is a very fine machining process, very similar to grinding. Its exact purpose is to provide a fine surface typically used in cylinders. It has a cross hatch surface and helps new sealing rings break-in. A honning fixture would be a piece of equipment to hold the cylinder in place while the honning operation is being done. You don’t want the piece moving during this operation.