Chemical Milling Process Photo Chemical Etchings Design Limitations

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Chemical Milling Process- Design Guidelines

The chemical milling process is highly versatile when working with thin sheet metal.
Check the following information to help you with your component design:

Metal thickness suitable for etching 0.002" up to 0.080" (0.05 to 2mm). Thicker metals when etched will have a noticeable profiled edge "cusp" as detailed. Metals of any thickness can be surface etched.	Edge Profile

Design tolerances Click to enlarge	Design tolerances - In certain instances, tolerances can be improved. Please contact our engineers for further information.

Forming - we can form components using hard tooling or using jigs for a small quantity. We can "half-etch" to create fold lines, so that the component can be formed by hand. Our engineers will be pleased to advise you on specific components and costs.	Formed component

Metal Flatness - this is determined by the standard provided by the steel mill. Tension leveled material is available when required. We operate within British Standard limits.


Complex component	Technical Advice- we are here to help solve your problems. Call an account manager with your problem and we will provide the solution. We have produced over 45,000 components in the last 30 years, so it is unlikely you problem will be a new one to us.

If you have any further technical queries, then please call one our account managers for advice on 01480 226699, or complete the contact form.

Photofabrication Limited
14 Cromwell Road, St Neots, Cambs, PE19 2HP, England Tel: (01480) 226699 - Fax: (01480) 475801 Email: sales@photofab.co.uk
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The photo chemical machining or milling etching process. Thin sheet metal components etched chemically (photo etched metal). Photochemical machining (photoetching) is suitable for etched metal components used in EMC/RFI shielding, encoder disc, actuator, switch contact, screening can, shim, solder mask, rotor lamination, lead frame, filters, heat sink, mesh, connector, applications.