The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 15, 2000
Filed:
Nov. 21, 1997
John Joseph Marcin, Jr, Marlborough, CT (US);
Justin Andreas Neutra, Vernon, CT (US);
David Henry Abbott, Middletown, CT (US);
James Peter Aduskevich, Higganum, CT (US);
Dilip M Shah, Glastonbury, CT (US);
Dorothea Nadette Carraway, Manchester, CT (US);
Raymond Paul Langevin, West Hartford, CT (US);
Marc R Sauerhoefer, Chicopee, MA (US);
Richard Alan Stone, Stafford Springs, CT (US);
United Technologies Corporation, East Hartford, CT (US);
Abstract
A containerless method of producing a crack free metallic article of near-net shape includes melting a filler material into a metallic substrate or seed under conditions chosen to preclude cracking. In a preferred embodiment of the invention, a laser beam is operated at a relatively low power density and at a relatively large beam diameter at the substrate surface for an extended length of time to produce a molten pool with a low aspect ratio. Near-net shape is achieved by applying the process in a closed-loop, multi-axis material deposition system.