Photo Chemical Milling Service

If you need photo chemical milling for a precision part we are one of the most capable and affordable sources and we can get the job done right. Photo chemical milling is a process that produces 2D part shapes by creating a chemical resist mask on the surface of sheet metal and chemically dissolving material from unmasked areas. We stock a wide variety of materials, use state-of-the-art machines and diligently follow all design specifications. We continually strive to improve and optimize our processes and maximize customer convenience. Our customers range from inventors to businesses to government agencies. We are focused on quality and customer service.

How photo chemical milling works

The process follows these steps:

  • A photo resistant coating is applied to make the sheet metal sensitive to light.
  • A photo mask is placed over the sensitized sheet metal.
  • The sheet is exposed to ultraviolet light.
  • The photo resist is developed into the masked pattern.
  • The sheet is etched to remove exposed metal areas leaving the final part.
  • The part is then cleaned.

Photo chemical milling offers high precision and detailed shapes in thin metal sheets, free of burrs. The process is particularly competitive for complex shapes.

The chemical process can make almost any 2D shape in relatively thin gauge sheet metal, typically 0.001" to 0.050" thick. Applications include gaskets, electrical shields, works of art, optical interrupters, shims, eraser shields, etc. The process can also be used for etching which is similar to engraving. Tooling consists of a film transparency. Cost reduction options include minimizing thickness and part area.

How to Proceed

We can quote your job using conventional CAD files or you can use our unique free CAD software where you can: design your part quickly and easily, get instant pricing, and order online.