Patent · US Active

Method of machining parts having holes

US8122583B2 · kind B2 · utility

16Cited by

8References

21Claims

0Family size

Assignee

UNITED TECHNOLOGIES CORPORATION · US

Inventors

Blake J. Luczak · Manchester, US
Glenn A. Cotnoir · Thompson, US
James T. Beals · Town of West Hartford, US
Thomas M. Morin · Léguevin, FR
Joseph Parkos · East Haddam, US

Key dates

Filing date	Jun 5, 2007
Grant date	Feb 28, 2012
Priority date	—
Expiry date	Dec 28, 2030

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49993
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

Removing of a casting core from a metal casting leaves at least one opening in a surface of the metal. The opening is filled with a sacrificial material. The metal and sacrificial material are machined at the opening. After the machining, a remainder of the sacrificial material is removed.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.