An aluminum sword is not typically capable of effectively cutting or performing as a functional cutting weapon. Aluminum has several limitations that make it unsuitable for cutting:

1. Low Hardness: Aluminum is a relatively soft metal compared to steel or other materials commonly used for blades. It lacks the hardness necessary to maintain a sharp edge and resist deformation during cutting. As a result, an aluminum sword would quickly dull and become ineffective for cutting tasks.
2. Low Strength: Aluminum is not as strong as steel, which means it is more prone to bending, warping, or breaking under the forces generated during cutting. It lacks the necessary rigidity and structural integrity to endure the stresses encountered during effective cutting.
3. Ductility: Aluminum is highly ductile, meaning it can easily deform without breaking. This property is undesirable for a cutting weapon, as it would compromise the sword's ability to maintain a stable and precise edge needed for effective cutting.
4. Wear and Tear: Aluminum is more susceptible to wear and tear compared to harder materials like steel. Cutting tasks, particularly against harder materials, would quickly degrade an aluminum blade, leading to dullness and potential damage.

It's important to note that while aluminum may not be suitable for functional cutting swords, it can be utilized for non-functional or decorative swords, such as prop weapons used in stage performances, cosplay, or for display purposes. However, if you are seeking a sword for practical cutting purposes, materials like steel or other appropriate alloys are more suitable due to their superior strength, hardness, and edge retention properties.