Psy-Blade

You can focus Way energy into your melee weapon. While charged, the weapon can cut through non-shielded materials with ease, and you gain potency on your melee attacks.

Heavy metal plates are non-shielded, so you can cut through most doors without trouble. Shielded constructs are rare, but they offer enough protection that this attack would lose its potency. You cannot infuse your fists with Way energy (or gloves, brass knuckles, etc.).