Chemical machining


A processing technology that forms a structure of desired geometry, dimensions, and surface conditions by concentrating or limiting chemical dissolution in a specific region on the surface of a material.

To concentrate or limit chemical dissolution, the area not to be processed is covered in advance in a desired pattern with an anti-corrosion substance called the maskant or resist. This process called masking uses either the photoresist, a photosensitive anti-corrosion material, or a nonphoto-sensitive anti-corrosion material. Use of nonphotosensitive anti-corrosion material is called the chemical milling, because its shaping process is similar to that of mechanical milling.


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