International Etching, Inc. HOME COMPANY PROCESS INDUSTRIAL DECORATIVE CONTACT US Beryllium Copper Beryllium Copper Part This relatively simple Beryllium Copper part has an interesting history which demonstrates the value of the chemical machining process and International Etching’s attention to its customers and the details of their products. This part was chemically machined as a a flat blank for a complicated subsequent form. The undeveloped length, as calculated by the customer, was .025″ too short. This was only discovered at the forming step. An emergency call was made to International Etching at 4:00PM and the problem explained. By 12:00 Noon the next day the photo tool had been re-plotted and the product was re-etched, and shipped later that same afternoon. Crisis averted. Sometimes the ability to make a feature revision within a short timeframe is invaluable. Photo-tooling and machining offers that kind of ability when absolutely required. Material: Beryllium Copper, .015″ thick Precision Parts for Precise Requirements International Etching, Inc. sales@internationaletching.com | 7 Ninigret Avenue, Providence RI 02907 Tel 888.781.6800 or 401.781.6800 | Fax 401.781.6813 Copyright © 2007 – 2021 InternationalEtching.com

International Etching, Inc. HOME COMPANY PROCESS INDUSTRIAL DECORATIVE CONTACT US Copper Heatsinks 110 Copper Heatsinks This 110 Copper Heatsink is .020″ x .650″ square with a tolerance of +/- .002″ and has a 63/37 solder plate of 100-200 micro inches thick. All coppers are easily and economically machined utilizing the photo-chemical machining process. This part is completely stress and burr free with exceptional flatness. Material Shown: 110 Copper, .020″ thick Precision Parts for Precise Requirements International Etching, Inc. sales@internationaletching.com | 7 Ninigret Avenue, Providence RI 02907 Tel 888.781.6800 or 401.781.6800 | Fax 401.781.6813 Copyright © 2007 – 2021 InternationalEtching.com

International Etching, Inc. HOME COMPANY PROCESS INDUSTRIAL DECORATIVE CONTACT US Shims Although this part appears to be very simple, only chemical machining could produce it. A series of 20 pieces of each thickness was required from a range of .0010″ to .0125″, each part being increased in thickness by .0002″. Thus 63 different thicknesses were required from stock availability of .004″, .005″, .008″, .010″ and .015″. The first step was to pre-etch stock strip down to each specific thickness, then chemically machine out each piece to a tolerance of +/- .002″ from each of the thicknesses and to properly label each of the 63 revisions. Two photo tools were required to account for differences in etch factor. Project Details: Run of 1260 pieces. Material was customer-supplied in 3″ width coil form. Minimal tooling cost. Shipping time: 14 business days from receipt of material. Call for specific information on the cost of this project. Precision Parts for Precise Requirements International Etching, Inc. sales@internationaletching.com | 7 Ninigret Avenue, Providence RI 02907 Tel 888.781.6800 or 401.781.6800 | Fax 401.781.6813 Copyright © 2007 – 2021 InternationalEtching.com