Sheet metal welding and fabrication process at Black Iron Metal

One-stop fabrication

Sheet metal fabrication in China for OEM parts and assemblies.

From flat blanks to finished enclosures, Black Iron Metal supports laser cutting, CNC bending, welding, fastening, finishing, assembly, inspection, and export packing.

Best fit for complete metal fabrication projects

Use this service when your project needs a supplier that can manage multiple sheet metal operations under one production workflow.

  • Custom enclosures, cabinets, panels, brackets, covers, doors, frames, and welded assemblies.
  • Materials commonly include stainless steel, carbon steel, galvanized steel, and aluminum.
  • Process planning for cutting, bending, welding, riveting, hardware insertion, surface finishing, and assembly.
  • Export-oriented packing for sea, air, or courier shipment, with labeling and carton requirements confirmed before production.
Custom fabricated metal cabinet and enclosure product

Fabrication scope

StageWhat we handleBuyer inputs needed
Drawing reviewManufacturability, bend feasibility, weld access, tolerance risks, finish conflicts2D drawing, STEP file, material, thickness, finish, critical dimensions
FabricationLaser cutting, punching where suitable, CNC bending, welding, grinding, hardware insertionAnnual demand, order quantity, visible surfaces, assembly notes
FinishingPowder coating coordination, plating, anodizing, brushing, passivation where applicableColor code, gloss, corrosion expectation, masking areas
Quality and packingDimensional checks, appearance inspection, fit checks, protective packing, labelingInspection priority, packing rules, carton limits, destination country

Common buyer projects and inspection focus

For sheet metal fabrication in China, the strongest RFQs connect the part use case with the checks needed before export packing.

Equipment enclosures

Inspection usually focuses on door gaps, hinge and lock fit, grounding points, cable openings, coating coverage, and packing protection for visible panels.

Mounting brackets and frames

Critical checks often include hole position, bend angle, flatness, weld strength, fixture fit, and whether mating hardware can be installed without rework.

Control panels and covers

Buyers should flag visible surfaces, burr limits, edge protection, hole alignment, label areas, masking needs, and carton separation before production starts.

Why overseas buyers use this service

Less supplier coordination

Multiple sheet metal steps can be coordinated through one supplier instead of separate cutting, bending, welding, finishing, and packing vendors.

DFM before production

Potential manufacturing risks are reviewed before sample or production order, reducing late changes and avoidable cost.

Export communication

RFQ details, drawing questions, packing notes, and shipment expectations are handled in a way overseas buyers can track.

Sheet metal fabrication FAQ

What types of sheet metal parts do you make?

We support custom enclosures, cabinets, panels, covers, brackets, frames, welded assemblies, and OEM sheet metal parts.

Can you support both prototypes and repeat production?

Yes. We support prototypes, pilot runs, and repeat production after drawings, material, finish, tolerance, and packaging requirements are confirmed.

What should be included in a fabrication RFQ?

Send 2D drawings, 3D files if available, material grade, thickness, finish, quantity, tolerance notes, packaging needs, and destination country.

Which inspection details should buyers define before production?

Identify critical dimensions, mating features, visible surfaces, coating expectations, assembly fit checks, packing requirements, and the approved drawing revision before production begins.

Get a fabrication quote

Send the core project details here. If online submission is unavailable, the form opens a prefilled email.

  • Attach drawings directly in email if the browser cannot send files through the form.
  • Include target annual demand when repeat sourcing matters.
  • Mention visible surfaces and packaging rules early.

Fabrication RFQ

Start with name, work email, country, and project type. Quantity and drawings can be added later.