So I gave this a try: San Mai of 1095 core and 410SS jacket. Starting pieces are 3/16" thick and either 5-1/2" or 6" long by 1-1/2" wide
I then used the TIG welder to fuse all the edges closed.
And welded the billet to a handle.
After forge-welding in the press, I ground the edges clean (or sort of clean)
Intermediate forging pic of tapering the end to a point.
I didn't get many photos during the forging process, but eventually, I went to grinding and HT. Here are three blades at 320 grit finish.
The secret lies hidden.