Flattening metal after forging is a critical step in the forging process. The goal is to remove all of the excess metal so it can be shaped and finished into a finished product. Here are 10 tips for flattening metal after forging
Use a flat surface when you flatten metal
Make sure your anvil is flat, set at your desired angle and properly supported by clamps or other devices
Use a stiff punch to create an indentation in the metal from one side of the object, then use another punch to expand that shape until it's flattened out completely
Rough out the shape of the piece with round file files and sandpaper before starting to hammer on it with a hammer and anvil on both sides of the object until it has been flattened out completely.
how to flatten metal after forging