JAMES MITCHELL BARBER
Pilots at Orchardglow Close, Hamilton, OH
License number
Ohio A4072299
Issued Date
Dec 2016
Expiration Date
Jun 2017
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
802 Orchardglow Close APT C, Hamilton, OH 45014
Professional information
Elevated-Temperature, Plasma-Transferred Arc Welding Of Nickel-Base Superalloy Articles
US Patent:
6084196, Jul 4, 2000
Filed:
Feb 25, 1998
Appl. No.:
9/030022
Inventors:
Gilbert E. Flowers - Cincinnati OH
Earl L. Kelly - West Chester OH
Warren D. Grossklaus - West Chester OH
James D. Barber - West Chester OH
Gray W. Grubbs - Williamstown KY
Levi Williams - Milford OH
Earl L. Kelly - West Chester OH
Warren D. Grossklaus - West Chester OH
James D. Barber - West Chester OH
Gray W. Grubbs - Williamstown KY
Levi Williams - Milford OH
Assignee:
General Electric Company - Cincinnati OH
International Classification:
B23K 900
US Classification:
21912146
Abstract:
A nickel-base superalloy article which is susceptible to strain-age cracking and has a directionally oriented, single crystal, or equiaxed grain structure is repaired with minimal welding heat input into the article. The article is first heated to a welding temperature of from about 1650. degree. F. to about 2000. degree. F. in an inert atmosphere. A damaged area of the article is weld repaired using a plasma-transferred arc welder which vaporizes a filler metal in a plasma arc and deposited the vaporized metal onto the article to form a weld overlay. Minimal additional heat is added to the article during welding, as the weldment metal is vaporized remotely from the article.