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Sheet metal fabrication is the process of forming parts from a metal sheet. Your 3D CAD files are converted into machine code, which controls a machine that precisely cuts and forms the sheets into the final part. Typical forming tools are brakes, punches, and dies which can form angular bends and features. Installing inserts, such as PEM inserts, is standard practice along with welding and finishing services. Sheet metal parts are known for their durability, which makes them great for end-use applications (e.g. chassis). Parts used for low volume prototypes and high volume production runs are most cost-effective due to large initial setup and material costs.

The metal sheet metal forming process is a widely used metal working technology that plastically deforms a thin metal sheet by an external step force, exceeding the material’s yield strength, bending and drawing into various complicated shapes without reducing the material itself. Metal sheet metal forming processes generally require the use of high quality molds to obtain the desired metal product.

  • Sheet Metal Part

  • Sheet Metal Parts

  • Sheet Metal Service

Popular Sheet Metal Materials




Aluminum 5052

Copper 101

Stainless Steel 301

Aluminum 6061

Copper 260 (Brass)

Stainless Steel 304

Copper C110

Stainless Steel 316/316L

Steel, Low Carbon


Sheet Metal Tolerances



Tolerance Notes

Edge to Edge

Single Plane or Flat Part

+/- 0.005"

Edge to Hole

Single Plane or Flat Part

+/- 0.005"

Hole to Hole

Single Plane or Flat Part

+/- 0.005"

Hole to Diameter

Single Plane or Flat Part

+/- 0.005"

Bend to Edge/Hole

Single Plane or Flat Part

+/- 0.010"

Hole to Hole/Edge: Edge to Edge

Multiple Planes, Bent Part

+/- 0.030"

Over Formed Part

Multiple Planes, Bent Part

+/- 0.030"

Bend Angle

Multiple Planes, Bent Part

+/- 1 deg.