Jason J Wiedyk

7784195, Aug 31, 2010

Feb 20, 2009

12/390140

Ihab M. Hanna - Lake Orion MI, US
Daniel L. O'Neil - Vassar MI, US
Jason J. Wiedyk - Grand Blanc MI, US
Aleksandar J. Filipovic - West Bloomfield MI, US
Shane E. Bremer - Hope MI, US

GM Global Technology Operations, Inc. - Detroit MI

G01B 5/20

33554, 33551

Contours of a surface of a bearing which extends about an axis are displayed on a grid. To visualize the contours, points on the surface are measured at a plurality of angular positions to determine the corresponding measured values. The measured values at each angular position are normalized to determine a normalized measurement datum corresponding to each angular position. The normalized measurement datum is subtracted from each of the measured values to determine a plurality of deviations of the corresponding points. Shades are assigned that correspond to a range of possible deviations. Each of the deviations are displayed as a data segment on a grid that represents the shape of the surface of the bearing. Each data segment is shaded on the grid to the corresponding shade to provide a topographical representation of the contours of the surface of the bearing.

20070056372, Mar 15, 2007

Mar 10, 2006

11/372918

Ihab Hanna - Lake Orion MI, US
Aleksandar Filipovic - West Bloomfield MI, US
Jason Wiedyk - Essexville MI, US
Bruce Tucker - Brighton MI, US
Shane Bremer - Hope MI, US

G01M 13/02
G01M 13/04

073593000, 073162000

A chatter boundary system includes a measuring module, a comparison module, and a boundary module. The measuring module measures and collects samples of undulations in a manufactured part. The comparison module classifies a sound signal generated by the undulations as either noisy or quiet. The boundary module determines a continuous boundary between the noisy and quiet undulations based on the samples and the sound signal.

20080188161, Aug 7, 2008

Feb 5, 2007

11/671008

SHANE E. BREMER - Hope MI, US
Ihab M. Hanna - Lake Orion MI, US
Jason J. Wiedyk - Essexville MI, US
Aleksandar J. Filipovic - West Bloomfield MI, US

GM Global Technology Operations, Inc. - Detroit MI

B24B 49/00

451 5, 451 1

A method for shaping a workpiece having a base portion using a tool is provided. The method includes rotating the tool at a fixed rotational speed in a first direction and rotating the workpiece in the first direction. The tool is positioned in contact with the workpiece at a first portion of the base portion of the workpiece. The workpiece is rotated at a first rotational speed when the tool contacts the first portion of the base portion of the workpiece. The workpiece is rotated at a second rotational speed when the tool contacts a second portion of the base portion of the workpiece. The first rotational speed and the second rotational speed are different.

20160348780, Dec 1, 2016

May 26, 2015

14/721404

- Detroit MI, US
Jason J. Wiedyk - Grand Blanc MI, US

GM GLOBAL TECHNOLOGY OPERATIONS LLC - Detroit MI

F16H 53/02
C23C 8/04

A sliding camshaft for shifting to a selected one of a plurality of selectable cam lobes includes an inner shaft and an outer shaft. The inner shaft has an external spline. The outer shaft has an inner surface, an outer surface, a coating, and an outer portion. The inner surface is subjectable to wear and is configured with an internal spline for transferring torque from and sliding axially on the external spline of the inner shaft. The outer surface is subjectable to wear and loading and is configured with the plurality of selectable cam lobes. The coating on the inner surface is for wear resistance. The outer portion is case hardened for wear resistance of the outer surface and to create a compressive residual stress in the outer portion for load carrying capability.