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James Zisson Phones & Addresses

  • Marblehead, MA
  • 32 Moffatt Rd, Salem, MA 01970 (978) 745-2204
  • 5 Surrey Rd, Salem, MA 01970 (978) 744-9362
  • Wenham, MA

Professional Records

License Records

James R Zisson

Address:
Marblehead, MA 01945
License #:
33757 - Active
Issued Date:
Feb 26, 1988
Expiration Date:
Jun 30, 2018
Type:
Mechanical Engineer

Publications

Us Patents

Laser Shock Peening Integrally Bladed Rotor Blade Edges

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US Patent:
6541733, Apr 1, 2003
Filed:
Jan 29, 2001
Appl. No.:
09/771856
Inventors:
Seetharamaiah Mannava - Cincinnati OH
Jeffrey H. Nussbaum - Wilmington MA
Abraham S. Assa - Marblehead MA
Andrea G. M. Cox - Haverhill MA
James R. Zisson - Salem MA
Albert E. McDaniel - Cincinnati OH
William D. Cowie - Xenia OH
Assignee:
General Electric Company - Schenectady NY
International Classification:
B23K 2600
US Classification:
21912185
Abstract:
A method for laser shock peening rotor blade leading and trailing edges of gas turbine engine integrally bladed rotors and disks that are not blocked by other rows of blades. The method includes continuously firing a stationary laser beam, which repeatable pulses between relatively constant periods, along at least a portion of leading or trailing edges of the blade, with the laser beam aimed at an oblique angle with respect to a surface of the edge such that laser pulses form overlapping elliptical shaped laser spots. In the exemplary embodiment of the invention, the elliptical shaped laser spots have an overlap of about 50% and are on the order of 11. 7 mm by 4 mm in diameter. Another method is for laser shock peening rotor blade leading and trailing edges of gas turbine engine integrally bladed rotors and disks that are blocked by other rows of blades. The method includes continuously firing the stationary laser beam, which repeatable pulses between relatively constant periods, along at least a portion of leading or trailing edges of the blade, with the laser beam compoundly angled such that it is aimed at a first oblique angle with respect to a surface of the edge and at a second oblique angle with respect to an axis about which the rotor is circumscribed. Laser pulses form the elliptical shaped laser spots that are angled from the leading edge radially inwardly towards the axis.
James R Zisson from Marblehead, MA, age ~64 Get Report