The chemical etching process, also known as photochemical machining or photochemical milling, is a subtractive manufacturing process that is used to create high-precision parts with very fine details.
The process of chemical etching (photochemical machining) starts with a design of the exact dimensions of the part to be etched. The design is then used to create a photo resist template, which protects certain areas of the metal from the etching process. After the photo resist is applied to the metal, an acid etchant is used to selectively remove the unprotected, exposed areas of metal. The remaining metal is then rinsed and the photo resist is removed, leaving behind the desired part.
Through chemical etching, businesses can obtain high precision, custom metal parts in a short period of time and with minimal cost. Some of the benefits of chemical etching include: rapid prototyping, smooth and uniform parts, perfectly symmetrical parts, no stress to the metal, tight tolerances, and low tooling and setup costs.
For more detailed information on chemical etching, visit Fotofab’s new Chemical Etching Learning Center at: www.fotofab.com/
About Fotofab: Fotofab is on the cutting edge of chemical etching technology. From custom screens and springs, to antennas, contacts, connectors, washers, RF shields and more, Fotofab produces the highest quality precision metal parts to your exact specifications. For more information regarding chemical etching and other technologies for creating custom precision metal parts, please visit http://www.fotofab.com.