Machining & Manufacturing

Modular construction of EJ NC/CNC grinding machines provides quick part changes to reduce downtime while maintaining flexibility.

University of Arkansas physicists hit the highest efficiency ever in transferring polarized electrons into a semiconductor surface.

The TSE mechanical encoder from CUI Stack Inc., Beaverton, Oreg., features a hollow shaft, eliminating the need to place the encoder directly behind the front panel.

Machine builders requiring multiaxis motion profiles often face complex solutions with high maintenance costs and significant downtime.

Versatile wheel blocks help engineers build better transfer cars.

When worm-gear speed reducers are assembled, proper alignment of the worm and gear, and the resulting tooth contact pattern, is the most critical assembly variable.

Motherboard or motion card: This is one of the fundamental decisions for specifying CNC on a personal computer platform.

A recently developed micro-coil winder capable of tensions lower than 3 gm helps a medical device company produce miniature, multi-pitch coils faster and more accurately than manually controlled winders.

A new layup-molding process developed by General Magnaplate Corp., Linden, N.J., reduces the time required to make layup molds (toolfaces) for large, contour-shaped, complex reinforced composites.

New GHS motorized spindles from Russell T. Gilman Inc., Grafton, Wis., have "Dynamic Preload Control" that lets users vary spindle stiffness while machining.

Whether the goal is high precision or low cost, ball screws are often the best option for linear actuation.