Stainless Steel Etching

Understanding Stainless Steel Photo Etching

Stainless steel photo etching, also known as chemical etching, chemi etching, acid etching, chemical milling, and PCM, is a widely utilized process for creating intricate designs. Our services can help bring your designs to life.

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This metal is a very popular choice for chemical etching due to its non-corrosive qualities. Parts made from stainless steel typically do not require additional plating or finishing once etched. Various grades and conditions are available, including annealed, half hard, full hard, and grades like 304, 1.4301, 1.4310, 430S17, 316S11, 316L, 17-7PH, 321S31, S526, S527, 1.4307, 1.4404, among others.

Applications and Advantages

Photo etching is a precise and adaptable manufacturing technique used to create detailed metal parts from stainless steel. Renowned for its durability, corrosion resistance, and strength, stainless steel becomes even more versatile when utilized in photo etching, making it ideal for producing complex parts required across various industries.

Stainless steel, primarily an alloy of iron, chromium, and nickel, offers excellent resistance to corrosion, heat, and chemical damage. Leveraging these properties through photoetching allows for the fabrication of components with remarkable precision and uniformity.

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The Etching Process

The photochemical etching process begins with preparing a stainless steel sheet. Rigorous cleaning removes any impurities, ensuring a pristine surface. A light-sensitive photoresist material is then uniformly applied to both sides of the sheet.

Through phototooling, a precise image of the desired components is transferred to the photoresist using UV light. This exposure causes a chemical reaction in the photoresist, hardening the areas corresponding to the design while leaving the rest unaffected.

After masking with the photoresist, the stainless steel sheet is immersed in an etchant solution, generally an acid or chemical mixture. Unprotected areas dissolve, creating the intricate components on the metal sheet.

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