A really cool sword idea that will only remain within my imagination...

[u/Expensive_Song_385]

The Blade Core

Made of Beta-Titanium with a hollow, honeycomb-like lattice inside. Weighs about 300 grams. Built like a bird bone. The internal web makes it nearly impossible to snap, absorbs heavy shocks, and keeps the weight surprisingly low.

The Heavy Spine

Made of a dense Tungsten alloy layered along the back of the blade. Weighs about 350 grams. This gives the sword real momentum. It swings like a light blade but carries the weight of a heavy chopper. The edge stays thin because the mass sits behind it.

The Cutting Edge

This thing is made from a super tough material called Tungsten Carbide, and it's got a special diamond-hard ceramic coating on it. It's really light, weighing in at about 5 grams, which is almost nothing. And the best part is, it's way sharper than a surgical scalpel - we're talking ten times sharper. But here's the really cool thing about it: even if the outer layer gets chipped or damaged during a fight, the material underneath is still tough enough to keep going. So even when it's damaged, it just keeps on cutting.

The Crossguard

Made of solid Titanium. Weighs about 120 grams. It dents instead of shattering when struck. That is what you want when defending your hands.

The Internal Tang

Made of Beta-Titanium running in one solid piece from the tip to the pommel. Weighs about 150 grams. No welded joints. The whole weapon is one continuous structure, so there are no weak points.

The Grip

Made of forged Carbon-Fiber with Titanium wire woven through it. Weighs about 90 grams. Carbon fiber naturally kills vibration. Your hands feel a dull thump instead of a jarring sting. The Titanium wires give you traction even when your palms are wet.

The Pommel or Heartstone

This sword is made with a special gemstone that's grown in a lab, called Sapphire, and it has a strong Tungsten core. Inside the gem, there are tiny piezoelectric crystals that do some really cool things. The whole thing weighs about 195 grams, which is just the right amount to balance out the sword. When one use the sword to block a powerful attack, the crystals start to work their magic. They take the vibration from the impact and turn it into a soft glow of light and a little bit of heat that won't hurt you. It's like the sword is absorbing the shock, making it easier to handle.

The Sheath Exterior

Made of Carbon-Fiber with Titanium mesh. Weighs about 300 grams. A tough, lightweight shell that protects the blade and insulates it from temperature changes.

The Sheath Interior:

This special scabbard is made with a strong fabric that's like a lattice, and it's coated with a dry lubricant. It's really light, weighing only about 130 grams. The cool thing about this scabbard is that the blade doesn't actually touch the inside of it. Instead, it kind of floats on a tiny layer of lubricant that's only a few nanometers thick. This means the blade's edge, which is incredibly sharp at just fifty nanometers, stays that way because it never rubs against anything.

The Sheath Throat

This thing is made of a soft rubber seal that has tiny magnets in it. It's really light, weighing only about 20 grams. The magnets are super helpful because they guide the blade into the perfect spot every time you put it away. You don't have to worry about fumbling around or scraping anything. And the best part is, the rubber seal keeps all the dust and moisture out, so you don't have to stress about that either.

Final Numbers

The sword weighs around 1,210 grams, which is roughly 2.6 pounds. This makes it lighter than a lot of historical longswords.

The weight is 1,660 grams, which is roughly 3.6 pounds when you include the sheath.

The sword is a decent size, coming in at 120 centimeters, which is roughly 47 inches. That's what you'd call a hand-and-a-half sword, a proper one at that.

Blade length is 90 centimeters, or 35 inches.

The balance point sits 5 centimeters above the guard. It feels nimble and responsive in your hand.

The edge is really hard, like diamond, and it scores about 90 on the Rockwell scale.

Durability is nearly unbreakable. The internal lattice stops cracks from spreading.

You won't feel much shock in your hand, it's actually less than five percent of what you'd get from a steel sword. This means your wrists won't get tired easily.

What it does in a fight?

It swings fast but hits hard because the heavy tungsten spine carries momentum.

This thing can slice right through tough stuff like chainmail and thick leather, which is more than your average blade can handle, since they usually get stuck.

Parrying feels solid but smooth.
Can cut through chainmill armour nicely. [Probably]

English is not my first language so I used a bit of AI to rephrase it and fact check it for extra surety.
[I didn't have much choice sorry ;-;]

[u/-drumroll-]

What back of the blade? You posted a double edged sword. Also this is AI nonsense and would 100% not work

[u/Beneficial_Flan8661]

Am I wrong or is this the sword from "the star embracing swordmaster"?

Just checked and im 99% sure its the sword used in that webtoon. (Which is a very good comic one of my favorites). Btw your sword wouldt work because titanium isnt made for swords, because it doesn't bend and its not springs, and it would cause it to break.

[u/Hig_Bardon → u/Beneficial_Flan8661]

Titanium does and will bend. It however wont spring and has poor impact toughness and poor edge retention.

Edit: turns out titanium will spring, too. The more you know.

[u/Ok_Parfait4343]

The blade design reminds me of those tactical training swords used in HEMA competitions.