Creating metal sculptures that are both lightweight and durable requires a blend of artistic vision and technical expertise. Here are five common techniques used by professional sculptors:

1. Hollow Fabrication: By constructing sculptures with hollow interiors using sheet metal or wireframes, artists reduce weight without sacrificing structural integrity. This method often involves welding or riveting thin metal panels.

2. Aluminum Alloys: Lightweight yet strong metals like aluminum or titanium alloys are popular choices. Their corrosion resistance and malleability make them ideal for intricate designs.

3. Wire Mesh and Netting: Using welded wire mesh or expanded metal allows for airy, translucent forms that maintain durability while minimizing material use.

4. Forging and Hammering: Thin metal sheets can be forged or hammered into durable shapes, creating rigid forms with minimal material. This technique works well for abstract or organic designs.

5. Modular Assembly: Breaking sculptures into smaller, interlocking components reduces weight and simplifies transportation while maintaining overall strength through strategic engineering.

Each technique balances artistry with practicality, ensuring sculptures withstand time and handling while remaining visually striking.