Basically for a no forge knife you need some already flat but durable metal such as lawnmower blades then you need to flatten any curves in the metal (see image above).
Step 2: Shaping and the edge
Shaping the knife is the longest part, this calls for patience and a grinding wheel, shape the blade to your liking and keep a bucket of water around for cooling the metal. To put a edge on it angle the blade and grind it then sand any roughness off.
Step 3: Removing rust
Removing any rust is essential, repeated sandings will do the trick, when then rust collects remove it with water and dry it with a rag.
Step 4: Handle
I will add instructions in the next update sorry, :(