Manufactured in a single piece, photo etched meshes can be more complex, thinner and have greater strength, making them more robust during handling.
Whereas punch-perforated sheets are prone to distortion, photo etched mesh is burr and stress-free, with zero material degradation.
Different patterns and arrays of holes can be produced at no extra cost and tighter tolerances can be achieved by the chemical etching process.
Advanced Chemical Etching (ACE) has produced meshes to filter toothpaste, which had a staggering 248,000 holes etched into the filter.
Low set-up costs and fast lead times make chemical etching a go-to process in batch sizes of one to multiple millions.
The tooling for chemical etching is digital, low-cost and can be modified quickly.
No heat or force is used when etching so mechanical properties remain unaltered and parts are free from stresses and burrs.
As component features are etched at the same time so part/feature complexity is not an issue.