What Is Sheet Metal Fabrication?

Sheet metal fabrication is the process of cutting, bending, forming, and assembling thin metal sheets into functional parts or structures. It’s used in everything from automotive and aerospace to electronics, HVAC, and industrial enclosures. The design stage is crucial — it determines how well the parts can be fabricated, assembled, and finished while keeping costs low

A. Material Selection

Choose material based on environment, strength, and cost. Material Key Properties Common Use Mild Steel (CRS) Strong, economical Brackets, cabinets Stainless Steel (304/316) Corrosion-resistant Food, marine, medical Aluminum (5052/6061) Lightweight, corrosion-resistant Enclosures, aerospace Galvanized Steel Rust-resistant HVAC, outdoor use

Thickness & Tolerances

Standard gauges: 0.5 mm–6 mm (0.02"–0.25") Keep the same thickness across the part for consistency. Cutting tolerance: ±0.1 mm (±0.004”) Bend tolerance: ±1°

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