{"id":12388,"date":"2022-05-31T03:51:00","date_gmt":"2022-05-31T03:51:00","guid":{"rendered":"https:\/\/metaletching.com\/?p=12388"},"modified":"2024-02-27T21:02:55","modified_gmt":"2024-02-27T21:02:55","slug":"acid-metal-etching","status":"publish","type":"post","link":"https:\/\/metaletching.com\/acid-metal-etching\/","title":{"rendered":"Acid Metal Etching"},"content":{"rendered":"\n\n\t\t\t\t\"Metal\n

\n\t\tAcid Metal Etching-Benefits for Industrial Components\n\t<\/h1>\n\t

Acid etching is a process when material, such as metal, is cut using specifically formulated acid. There are two types of acid used in the process, ferric chloride and cupric chloride (used for copper alloys).\u00a0 Acid etching metal is a non-contact process.\u00a0 The acid dissolves the metal sections around the part features that are not coated with a photoresist laminate. The process avoids any contact with hard tooling that is often used in conventional methods such as stamping and CNC machining.\u00a0 For this reason, etching metal is favored over the other processes when the absence of burrs is critical to the part’s requirements.<\/p>\n

The industries that use acid to etch metal include DIY hobbyists, who create decorative metal pieces, and metal fabricators who use the processes to make customized metal parts for industries such as electronics, aerospace, medical, automotive, telecommunications, and automation.<\/p>\n

This blog post focuses only on custom metal etching for industrial parts<\/a>. The industry terms for this acid metal etching process are chemical etching, photo etching, photochemical machining, and chemical milling.<\/p>\n

Below is a more specific description of the chemical etching process for parts such as lead frames, EMI\/RFI shielding, springs, contacts, heat exchangers, filters, and many more industrial applications.<\/p>\n

\n\t\tAcid Metal Etching Process For Industrial Parts\n\t<\/h2>\n\t

Photochemical etching is the prototyping choice for engineers when their designs are complex and must be free from burrs or stress deformation. The use of acids to dissolve unwanted metal eliminates the hard tooling and force present in other machining processes.<\/p>\n\t

Which Metals are Commonly Used for Acid Etching?<\/h2>\n

Which metals can be acidly etched?\u00a0 When producing parts, it is important to know a metal’s properties because specific metals will be more suitable depending on the application. Here are the more common metals we use in the acid process:<\/p>\n