Michael L Mcgraw

US Patent:

20200164422, May 28, 2020

Filed:

Jan 24, 2020

Appl. No.:

16/752143

Inventors:

- Chicago IL, US
David G. Jensen - Auburn WA, US
McKay A. Kunz - Buckley WA, US
Gregory L. Ramsey - Seabeck WA, US
Michael Delos McGraw - Bonney Lake WA, US
James E. Pillers - Seattle WA, US
Nate Speer - Bonney Lake WA, US

International Classification:

B21D 31/06
B21D 1/12
B21D 22/02
B21D 1/06
B21D 22/00
B21D 37/00
B21D 22/06
B21D 53/88
B21D 22/18

Abstract:

A driven member of a metal peening machine is disclosed. The metal peening machine is configured to drive the driven member into contact with a work surface of a metal workpiece to deform the metal workpiece. The driven member includes a shaft with an impact end. At least one of a plurality of impact features, an impact feature with a non-flat impact surface, a non-round impact feature, and an asymmetrical impact feature is coupled to and protrudes from the impact end of the shaft. The at least one of the plurality of impact features, the impact feature with a non-flat impact surface, the non-round impact feature, and the asymmetrical impact feature defining at least one impact surface to be driven into contact with the work surface of the metal workpiece.

US Patent:

20150075248, Mar 19, 2015

Filed:

Sep 19, 2013

Appl. No.:

14/031690

Inventors:

- Chicago IL, US
James E. PILLERS - Seattle WA, US
McKay A. KUNZ - South Prairie WA, US
Michael Delos MCGRAW - Bonney Lake WA, US
Gregory L. RAMSEY - Seabeck WA, US
Nate SPEER - Bonney Lake WA, US

Assignee:

The Boeing Company - Chicago IL

International Classification:

B21D 31/06

US Classification:

72372, 72441

Abstract:

An apparatus and method are provided for changing physical characteristics of a workpiece which may have been pre-loaded before being further processed. The workpiece is supported in a fixed position during processing. A driven member applies multiple impacts to one surface of the workpiece. The driven member is operated within adjustable parameters. A controller, having the adjustable parameters, is operatively connected to the driven member for causing the driven member to apply multiple impacts against a surface of the workpiece while under the control of the pre-adjustable parameters for changing physical characteristics of the workpiece.