Sheet Metal Fabrication
Sheet metal fabrication turns flat sheet into finished parts and assemblies by cutting, punching, bending, welding and finishing. It produces enclosures, panels, brackets, covers, chassis and cabinets economically from prototype to production.
What it is
A typical route is laser cutting or punching the flat blank, bending on a CNC press brake, then joining by welding, riveting or fasteners (PEM inserts, studs), followed by powder coating or plating.
Good sheet metal design uses consistent bend radii, sensible hole-to-bend distances and standard thicknesses, which keeps parts accurate and cost-effective.
Typical applications
- Electrical panels and enclosures
- Machine covers and guards
- Brackets, chassis and frames
- HVAC and ducting parts
- Kiosks, cabinets and furniture
Suitable materials
- CRCA and HR mild steel
- Galvanised steel (GI/GP)
- Stainless steel (304, 316)
- Aluminium (5052, 6061)
Points to consider
- Keep holes at least about 2–3× thickness away from bends to avoid distortion.
- Use one inside bend radius throughout the part where possible.
- Specify self-clinching inserts (PEM) instead of tapping thin sheet.
- Allow for powder coating thickness on close-fitting parts.
Frequently asked questions
What is included in sheet metal fabrication?
Cutting, punching, bending, welding or fastening, inserts and finishing such as powder coating, delivering finished parts or assemblies.
What thickness counts as sheet metal?
Generally up to around 6 mm. Thicker material is usually treated as plate fabrication.
Can you make enclosures from a sketch?
Yes. From a sketch with key dimensions we can develop drawings and flat patterns for your approval.