Brush Wellman, Inc.

Scm Metal Products, Inc.

James M Marder

Warren J Haws

Fritz C Grensing

Jere H Brophy

Wayne L Wright

Larry A Grant

Stephen D Dunmead

High theoretical density, metal-based materials containing graphite or hexagonal boron nitride have low coefficients of friction and wear rates are useful for bearings, bushings and other articles subject to bearing loads.

High density, metal-based materials having low coefficients of friction and wear rates

Disclosed is a practical aluminum-based alloy containing 1 to 99 weight percent beryllium and improved methods for the investment casting of net shape aluminum-beryllium alloy parts.

Aluminum-beryllium actuator armset

Articles of manufacture are made of aluminum-beryllium alloys having substantially randomly distributed aluminum-rich and beryllium rich phases to provide substantially isotropic mechanical properties, such as high stiffness and low co-efficients of thermal expansion, whereby the articles of manufacture provide more rapid and accurate responses.

Aluminum-beryllium alloys having high stiffness and low thermal

Disclosed is a practical aluminum based alloy containing 1 to 99 weight percent beryllium, and improved methods of semi-solid processing of aluminum alloys containing beryllium. The present methods avoid molten beryllium, agitation of molten aluminum-beryllium alloys and the need for introducing shear forces by utilizing atomized or ground particles of beryllium mixed with solid, particulate or liquidus aluminum.

Beryllium-containing alloys of aluminum and semi-solid processing of

Disclosed is a practical magnesium based alloy containing 1 to 99 weight % beryllium and an improved method of semi-solid processing of magnesium alloys containing beryllium. The present method avoids agitation of molten alloys and the need for introducing shear forces by utilizing atomized or ground particles of beryllium mixed with solid, particulate or liquidus magnesium.

Semi-solid processing of beryllium-containing alloys of magnesium

Aluminum alloys containing beryllium and investment casting of such

Articles of manufacture are made of aluminum-beryllium alloys having substantially randomly distributed aluminum-rich and beryllium rich phases to provide substantially isotropic mechanical properties, such as high stiffness and low coefficients of thermal expansion, whereby the articles of manufacture provide more rapid and accurate responses.

An actuator armset for a computer disk drive, in accordance with one aspect of the present invention, is comprised of a magnesium alloy containing beryllium. The armset has a bore for rotating about a spindle of the disk drive to position a transducer radially across a disk of the disk drive. In accordance with another aspect of the invention is an actuator armset of a disk drive system for movably positioning and supporting a transducer over a disk of the disk drive. The armset has a bore for pivoting about a spindle and comprises a magnesium alloy containing beryllium. A bearing assembly is interposed between the armset and the spindle, a flexible suspension being mounted at one end of the armset. Mounted to an opposing end of the suspension is a transducer. A voice coil is, in turn, mounted to a set of armset brackets such that the voice coil and the brackets are opposite the suspension and transducer.

Growing community of inventors

Shaker Heights, OH, United States of America

James M Marder