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  • Sheet Metal Fabrication

ProtoMandi Sheet Metal Fabrication Services

Fast, Accurate, and Reliable Laser Cutting & CNC Bending in India

Upload your DXF/STEP files and get high-quality sheet metal parts delivered with speed and precision.

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What is Sheet Metal Fabrication?

Sheet metal fabrication is the process of cutting, bending, and assembling flat sheets of metal or non-metallic materials to create functional parts and enclosures. At ProtoMandi, we specialize in two key operations:

  • Laser Cutting: High-precision cutting of metal and non-metal sheets using laser technology.
  • CNC Bending/Forming: Computer-controlled forming of sheet metal into complex shapes using dies and press brakes.

Key Advantages

  • Rapid prototyping and low-volume production
  • High dimensional accuracy
  • Minimal tooling costs
  • Supports metals and plastics

Common Applications

  • Electrical enclosures
  • Brackets and mounting plates
  • Decorative panels
  • Control boxes
  • Signage and architectural elements

Laser Cutting vs CNC Bending

Feature Laser Cutting CNC Bending
Purpose Cut flat profiles from sheets Bend/curl sheets into 3D forms
Tolerance ±0.1 mm (typical) ±0.5° (angle), ±0.2 mm (position)
Best For Intricate shapes, holes, contours U-bends, flanges, and formed geometries

Supported Materials

Metals

  • Mild Steel (MS)
  • Stainless Steel (SS304, SS316)
  • Aluminum (5052, 6061)
  • Brass

Non-Metals

  • Acrylic
  • MDF
  • Polycarbonate

Material Properties Table

Material Thickness Range Machinability Finish Quality Common Uses
MS 0.5–6 mm High Good Brackets, structural parts
SS304 0.5–5 mm Moderate Excellent Kitchenware, medical components
Aluminum 5052 0.5–4 mm High Good Automotive, marine
Brass 0.5–3 mm Moderate High polish Decorative elements, hardware
Acrylic 1–10 mm Easy Excellent Displays, signs
MDF 2–12 mm Easy Good Prototypes, enclosures
Polycarbonate 1–6 mm Easy Good Machine guards, lenses

Material Selection Tips

Choose materials based on:

  • Strength: Use MS or SS for load-bearing parts.
  • Corrosion Resistance: Prefer SS316 or Aluminum 6061 for outdoor use.
  • Aesthetics: Brass, Acrylic, and PC offer visual appeal.
  • Weight: Aluminum is lighter than MS/SS.

Design Guidelines for Manufacturability (DFM)

General Tips

  • Min hole size = 1.5 × material thickness
  • Min bend radius = 1 × material thickness
  • Keep slot widths ≥ material thickness

Avoid

  • Overhangs without reliefs
  • Tight bend-to-hole distances
  • No kerf allowance in interlocking parts

Supported Features

  • Tabs & slots for easy assembly
  • Countersinks & counterbores
  • Laser engraving
  • Relief cuts to avoid tearing

Add-on Services

  • Powder Coating: Durable, aesthetic finish
  • Engraving: Laser or CNC-based text/marking
  • PEM Inserts: For threaded fastening
  • Part Marking / QR Codes: For traceability
  • Deburring & Edge Finishing: Smooth and safe edges

Why Choose ProtoMandi?

  • Engineer-led team that understands DFM
  • Trusted vendor network with ISO-certified partners
  • Rapid lead times with consistent quality
  • Part traceability and job history maintained
  • Backed by the ProtoMandi Guarantee for quality and reliability

The ProtoMandi Guarantee

We stand by every part we ship. If your part is defective or delayed beyond tolerance, we’ll refund or remake it—no questions asked.

Get Started Now

Ready to bring your designs to life?

  • Upload your CAD files: .DXF, .STEP, .IGS, .PDF
  • Instant review by our engineering team
  • Transparent quoting & quick turnaround