General Electric Company

Sabic Innovative Plastics IP B.v.

Erwin Wenti Liang

Eugene George Olczak

Yu Wang

Ronald Ralph Cairo

Christopher Anthony Kaminski

Wendy Wen-Ling Lin

Joseph Lucian Smolenski

Dennis Joseph Coyle

James Robert Wilson

Andrew Jay Salem

Eric Jon Jaarda

Vinod Padmanabhan Kumar

Donald Bruce Sorensen

Dennis M Jacobs

Alvin Un-Teh Chen

Teeporn Paul Tanpitukpongse

Anant Kulkarni

Harland Lynn Hayden

Richard Robert Edwards

Eric Redito Robrigado

A method of machining a surface of a workpiece is accomplished by bringing a cutting tool into contact with the surface of the workpiece and for at least one cutting pass, i, causing relative movement between the cutting tool and the surface of the workpiece along a path in the surface of the workpiece. The path is in the nature of a mathematical function defined over a segment, C, of a coordinate system and characterized by a set of nonrandom, random or pseudorandom parameters selected from the group consisting of amplitude, phase and period or frequency. Relative movement between the cutting tool and the surface of the workpiece may be accomplished by bandpass filtering a noise signal; providing the bandpass filtered signal to a function generator; generating a randomly modulated mathematical function from the function generator; and in response to the randomly modulated function, directing the relative movement between the cutting tool and the surface of the workpiece along the path in the surface of the workpiece.

Method and apparatus for fabricating a light management substrates

A removal assembly and method for removing a submaster from a master is described. A curved tooling surface is arranged within a housing of the assembly. A first array of vacuum cups is attached to the housing adjacent a first end of the curved tooling surface, where the first array of vacuum cups are configured to provide a vacuum grip on a first portion of the submaster. A second array of vacuum cups is attached to the housing adjacent a second end of the curved tooling surface, where the second end opposes the first end, the second array of vacuum cups is configured to provide a vacuum grip on a second portion of the submaster. A rotation mechanism is configured to rotationally support the master as the master is rolled along the curved tooling surface to remove the submaster.

Method and apparatus for reducing surface defects

A method of determining a tool geometry and tool orientation for any prescribed path along a workpiece of a cutting tool is described. A parameter set is provided, where parameters of the parameter set include tool geometry and tool orientation relative to a surface of the workpiece. Values of the parameters in the parameter set are determined such that no local interference or global interference occurs, where local interference occurs when a portion of the tool immediately adjacent a cutting edge of the tool contacts a sidewall of a groove already cut by the cutting edge, and global interference occurs when a portion of the tool away from the cutting edge contacts a sidewall of a groove already cut by the cutting edge.

Gouge and interference avoidance in surface contouring

There is provided a machining tool for machining a workpiece on a workpiece support in response to control signals. The machining tool includes a cutting tool configured to cut a surface of the workpiece. The machining tool also includes a first displacement mechanism and a second displacement mechanism. The first displacement mechanism arranged to displace the cutting tool relative to the workpiece in a first set of coordinates in response to the control signals. The second displacement mechanism supported by the first translation mechanism and arranged to displace the cutting tool relative to the workpiece in a second set of coordinates, the second displacement mechanism capable of a higher frequency response than the first displacement mechanism. The machining tool also includes a controller configured to receive the control signals and synchronize the displacement of the cutting tool due to the first displacement mechanism with the displacement of the cutting tool due to the second displacement mechanism.

Machine tool control methods and designs for fabricating mesoscopic surface structures on substrates

An enclosure for a rotor in a generator including the rotor, rotor windings and a stator, the enclosure comprising a plurality of composite rings located adjacent one another along a length dimension of the rotor so as to contain the rotor windings on the rotor, the rings each comprising at least two layers selected from the group consisting essentially of metals, glass fiber laminates and graphite fiber laminates.

Multi-layer composite rings for machine rotors

Method and apparatus for fabricating light management substrates

A method for predicting headlamp reflector temperature comprising receiving a headlamp type and transmitting a request for an input parameter value responsive to the headlamp type. The input parameter value is received in response to transmitting the request. A transfer function is executed in response to the input parameter and the headlamp type and the execution results in a predicted maximum reflector temperature. The predicted maximum reflector temperature is then output.

Method, system and computer product for predicting headlamp reflector temperature

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Ballston Lake, NY, United States of America

Erwin Wenti Liang