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Sheet metal fabrication is the process of forming, cutting, and assembling metal sheets into various shapes and structures. It involves several techniques such as cutting, bending, and welding，surface treatment to create finished products from sheet metal materials. Sheet metal, typically made from materials like steel, aluminum, or copper, is widely used in various industries for manufacturing parts and components of machines, vehicles, appliances, and more.
Starway’s online sheet metal fabrication services offer a comprehensive and efficient solution for producing parts based on 3D CAD files or engineering drawings. Starway provide a variety of materials, including stainless steel，aluminum, brass, steel, and stainless steel, and cover multiple fabrication processes such as stamping, cutting, bending, and welding. Our services also include assembly, such as installing PEM inserts, design packaging drawings and packaging services. Starwaty can accommodate both low-volume prototypes and volume production, offering competitive custom pricing for sheet metal fabrication. Starway is committed to bringing your idea to life.
Sheet metal is cut into the desired shape and size using various methods including shearing, laser cutting, plasma cutting, or water jet cutting. Precision cutting is essential to ensure accurate dimensions and smooth edges.
Additional forming processes such as rolling, punching, or stamping may be used to create complex shapes, contours, or features on the sheet metal.
Drilling uses rotating drill bits to create cylindrical holes in a workpiece, often for fasteners or to accommodate other components.
Welding is used to join multiple pieces of sheet metal together. Common welding techniques include spot welding, MIG welding, TIG welding, and seam welding. Welded joints must be strong and durable to withstand the intended application.
After fabrication, the sheet metal may undergo surface treatments such as painting, powder coating, or plating to enhance its appearance and protect it from corrosion.
The fabricated components are assembled together to create the final product. This may involve fastening, riveting, or welding the components together.
| Material Thickness | Typical Tolerance |
| Up to 0.5 mm | ± 0.05 mm |
| 0.5 mm-2.0 mm | ±0.1 mm |
| 2.0 mm -5.0 mm | ± 0.15 mm |
| 5.0 mm-10.0 mm | ± 0.2 mm |
| 10.0 mm and above | ± 0.3 mm |
| Tolerances | |
| Forming and Bending: | +/- 0.4 mm |
| Bend to hole or feature: | +/- 0.2 mm |
| Linear dimensions excluding locations to bend | +/- 0.1 mm |
| Diameters with inserts | +/- 0.06 mm |
| Angularity | +/- 2 degrees |
| Surface roughness | +/- 3.2 micrometers |
| Countersink Tolerances | |
| Machined countersink major diameter | +/- 0.254 mm |
| Machined countersink minor diameter | 2/3 thickness |
| Formed countersink major diameter | +/- 0.381 mm |
| Formed countersink minor diameter | +/- 0.381 mm |
| Name | Materials | Color | Texture | Thickness |
| Anodizing | Aluminum | Clear, black, grey, red, blue, gold. | Smooth, matte finish. | A thin layer: 5-20 μm Hard anodic oxide film: 60-200 μm |
| Bead Blasting | Aluminum, Brass, Stainless Steel, Steel | None | Matte | 0.3mm-6mm |
| Powder Coating | Aluminum, Brass, Stainless Steel, Steel | Black, any RAL code or Pantone number | Gloss or semi-gloss | 5052 Aluminum 0.063″-0.500″6061 Aluminum 0.063″-0.500″7075 Aluminum 0.125″-0.250″ Mild Steel 0.048″-0.500″ 4130 Chromoly stee 0.050″-0.250″ Stainless Steel 0.048″-0.500″ |
| Electroplating | Aluminum, Brass, Stainless Steel, Steel | Varies | Smooth, glossy finish | 30-500 μin |
| Polishing | Aluminum, Brass, Stainless Steel, Steel | N/A | Glossy | N/A |
| Brushing | Aluminum, Brass, Stainless Steel, Steel | Varies | Satin | N/A |
| Silkscreen Printing | Aluminum, Brass, Stainless Steel, Steel | N/A | N/A | 1 μm |
| Passivation | Stainless Steel | None | Unchanged | 5μm-25μm |
Known for its good formability and strength, commonly used in manufacturing automotive parts, machinery components, and furniture.
known for its good strength and corrosion resistance, often used for manufacturing lightweight parts and structures.
known for its excellent conductivity and thermal conductivity, commonly used for manufacturing electrical components and heat-conducting parts.
an alloy of copper and zinc, known for its good machinability and corrosion resistance, commonly used for manufacturing valves, pipes, and other components.
such as polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), etc., commonly used for manufacturing plastic parts and housings.
known for its good wear resistance and compression strength, commonly used for manufacturing mechanical parts and bases.
Improving the smoothness and appearance of the metal surface through grinding and polishing techniques.
Including electroplating, galvanizing, chromium plating, etc., depositing another metal or alloy onto the metal surface to enhance its properties or appearance.
Applying protective or decorative coatings using spray painting techniques.
Changing the structure and properties of the metal by heating and cooling, such as quenching, tempering, etc.
Using high-pressure blasting to remove oxide layers and impurities from the metal surface, improving surface roughness.