Titanium knife

[Wowbagger]

Here's the simplest joint. Basic tung and groove with pins pressed in.
Maybe the edge material is a short version of the table top and the Titanium would be cut like the end board.
Photo here at this link>>>>>
Get the parts milled.
Heat treat the edge material (440C).
Pin together with press fit pins (like a motorcycle chain but ground flush).
Grind the edge to suit you.

 

[FSUwelder1212]

It can be done with friction spin welding (FSW). Stainless to titanium joining is commonly done with this process for aftermarket valves for racing applications. However, the equipment is highly specialized to the application and even with custom built equipment you would be limited on size and geometry, it would never be feasible. I believe magnetic pulse welding (MPW) would do it as well but again, due to the equipment required, this is simply not feasible. I think there may be a couple other solid state weld processes that could do it but are simply not realistic.

 

[Lapedog]

Explosion welding.

Miltner Adams had that explosion welded titanium knife with I believe an s30v edge. They were like 1000$ until stock started getting low, then he raised the price to 4000$

 

[Mecha]

It can be done with friction spin welding (FSW). Stainless to titanium joining is commonly done with this process for aftermarket valves for racing applications. However, the equipment is highly specialized to the application and even with custom built equipment you would be limited on size and geometry, it would never be feasible. I believe magnetic pulse welding (MPW) would do it as well but again, due to the equipment required, this is simply not feasible. I think there may be a couple other solid state weld processes that could do it but are simply not realistic.

That's very interesting. Do you have any references you can link to these valves? I looked it up and couldn't find such valves, only ones that were all stainless or all titanium. The only friction-welded valve component I saw mentioned was inconel or some something like that.

 

[Comeuppance]

Explosion welding.

I felt it necessary to acknowledge this slightly obscure reference.

Thank you.