FAQs

Photochemical machining (PCM), also known as photoetching or chemical etching, is a manufacturing process used to produce precise metal components. A photoresist and chemical etchant are used to selectively remove material from a metal sheet according to the part design. The process is particularly well suited for thin, intricate metal components.

Photochemical etching can be used to manufacture a wide range of thin metal components, including screens, filters, shims, washers, electrical contacts, encoder discs, lead frames, springs, gaskets, and other intricate precision parts.

Etchit works with a variety of metals and alloys suitable for photochemical machining. Material selection depends on the part’s design, performance requirements, thickness, and application. Contact our team with your material specifications to determine whether your chosen material is a good fit for the process.

Photochemical etching can be a strong option for thin metal parts with intricate features, tight geometries, or designs that may change during development. It is also valuable for prototypes and lower-volume production because photographic tooling can be less expensive and easier to modify than traditional hard tooling.

Yes. Photochemical machining is particularly useful for producing detailed patterns, small openings, slots, and other intricate features in thin metal. The best way to determine whether a specific design is suitable is to send Etchit your drawing for review.

Photochemical machining is used across industries that require precise thin-metal components, including electronics, aerospace, medical, automotive, telecommunications, industrial equipment, and other specialized manufacturing applications.