Photo-chemical etching also know as sheet metal etching machining. It’s a corrosion processing
technology use specific chemicals and electrolyte to etch sheet metals. Hysonetch can produce complex and high-precision components and parts via photo-chemical etching. Photo chemical etching uses to process almost all sheet metal, such as stainless steel, aluminium, nickel, copper, titanium etc. It applies to virtually any industry, such as Aerospace, Defence & space, Automotive, Electronics & communications, New energy, Medical & beauty device, Precision Engineering, Electric Vehicles, Semiconductor chip, Filtration, Craft accessories and so on.
Photo chemical etching process step by step:
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Cleaning
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Clean the sheet metals which has been cut. This step is to remove the oil stains on the surface. |
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Lamination
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A (UV) light-sensitive photo-resist applies onto the surface of the metal substrate. It can protect the metals which are not be etched. |
| It's very important for film quality inspection when producing high precision metal parts. If the film negative changes a little, dislocation and gap may occur in the production process and will have influence on the smooth work production. Thus, in order to ensure metal part quality, we have to do good inspection film work of the parts we've made. |
Film checking |
| Use the stencil film to place over the photo-resist-coated metal substrate. it will transfer the design to the photo-resist by exposing the sheet to UV light through a stencil film. |
Exposing
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Developing |
This step removes the unexposed areas of the photo-resist, leaving behind a patterned layer corresponding to the desired part design. |
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Etching
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Use our unique etchant to remove the metal which is exposed |
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Stripping
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Once the etching is complete, put the sheet metal into the stripping machine, it will remove the remaining photo-resist from the metal surface, typically through a stripping process. |
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