I really tried to avoid this to let you grasp it but anyway.
I'm assuming you mean just resting one block of metal onto another block of metal and applying light pressure then asking me why they don't just bond, right?
Yes, finally you got the question.
Now here's the key to why I keep telling you not to set yourself back.
The metals are already bonded by energy applied to make them what they are in both cases.
If you do not apply the same energy to change the molecular make up then you are not going to have a merging bond between both metals.
Why is it that you can't get this if you grasp the strateria or micateria?
Finally, you explain something. You NEVER brought this up when we were discussing strateria or micateria, so obviously I would never know anything about this. So, you need to apply energy to bind strateria.
But then I have another question. If energy is required to bond strateria, is energy released when I break apart strateria?
The answer is, yes.
What you have to remember is, to release the strateria you have to apply enormous energy of friction by expansion for friction or contraction for friction.
For instance, heat or severe cold to our perception.
Or to make it simpler, fire or nitrogen as a extreme each way.
Imagine you have a metal bar. As it stands it is a formed bar. You want to change that bond so you use immense energy (your arm strength) to bend it. Once you bend that bar you are breaking apart some of the bond by massively creating molecular friction which releases (expands) the tight bond of the strateria from the micateria.
You're basically turning solids into liquids resting on solids, depending on the strength (energy) applied to the bending.
The oopposite is true with nitrogen, which as you know has already been under massive energy to cool it to the way it is to our perception.
Now it's as if we are now making the strateria compress away from the micateria allowing the frozen atmosphere (nitrogen) to take it's place in the void which weaken the bond, to our perception and causes the metal to be fragile and snap easily.
This requires much more explanation but I'm banking on you grasping some of it.