These screens for medical applications, hydraulic-valve screens, fuel filters, laser-light filters, extruding screens, and particle separation and sizing, are are made with photoetching. This approach means that the openings don't shift or change as the screens work. They also lack the burrs that are associated with stamped screens. They can be made with straight or tapered holes, and hole sizes are as small as 0.003 inch. They are usually stainless steel, but can be other materials. Many sizes and custom shapes are available, but the standard screens have 60 or 90 degree patterns with a maximum guaranteed perforated area of 18 3 21 inches.
Altair has released an update of its HyperWorks computer-aided engineering simulation suite that includes new features focusing on four key areas of product design: performance optimization, lightweight design, lead-time reduction, and new technologies.
At IMTS last week, Stratasys introduced two new multi-materials PolyJet 3D printers, plus a new UV-resistant material for its FDM production 3D printers. They can be used in making jigs and fixtures, as well as prototypes and small runs of production parts.
In a line of ultra-futuristic projects, DARPA is developing a brain microchip that will help heal the bodies and minds of soldiers. A final product is far off, but preliminary chips are already being tested.
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