There are lots of different ways to make knives out of sheet metal, but there are few that offer the same level of craftsmanship as forging. If you're looking for a more traditional approach, here is a guide to making knives out of sheet metal
The process of making knives from sheet metal is not difficult at all. In fact, it's actually quite simple and rewarding once you get the hang of it. You can make some pretty impressive knifes from sheet metal. Many folks pick up the art of forging and learn it by trial and error, but here's my advice to you. Use a guide. Here are some examples that will help you get started learning how to make knifes out of sheet metal:
making knifw out of sheet metal vs forge