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Photo Etching Tungsten for Medical Applications
PLYMOUTH, Mass.--Photo chemical etching of tungsten--a material used in medical applications--is a specialty of Tech-Etch, Inc., a Plymouth, Mass., company that provides single-source capabilities for the production of thin metal flat and formed parts, EMI/RFI shielding, and flexible printed circuits.
Tungsten, reported to be 71% heavier than lead, is used in medical applications because of its extreme density. Grids used to collimate and attenuate stray X-rays in CT scanners, as well as ID tags used in implanted medical devices, are medical applications in which it is used. Known for retaining its strength at high temperatures, tungsten is also used in applications such as filaments in vacuum and X-ray tubes, plus heating elements and rocket engine nozzles.
Tech-Etch (www.tech-etch.com) also produces component parts made from several other www.tech-etch.comspecialty metals used in the medical device marketplace. These include titanium, niobium, elgiloy, MP35N, and Nitinol. Parts range in thickness from 0.0005 inch and up. While providing quick turnaround and low tooling costs, photo etching produces burr-free parts with intricate and complex shapes. Designs can be proved in preproduction quantities without having to commit to expensive tooling. Laminating, plating, heat treating, and assembly are available in house.
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