| US 7,523,552 B2 | ||
| Milling bleed holes into honeycomb process | ||
| David E. Walker, Rochester, N.H. (US); and Barry P. Toth, Wells, Me. (US) | ||
| Assigned to United Technologies Corporation, Hartford, Conn. (US) | ||
| Filed on May 30, 2007, as Appl. No. 11/807,892. | ||
| Prior Publication US 2008/0298919 A1, Dec. 04, 2008 | ||
| Int. Cl. B23P 15/04 (2006.01); B23B 41/00 (2006.01) | ||
| U.S. Cl. 29—889.2 [29/889.1; 29/402.02; 29/558; 408/1 R] | 20 Claims |
| 1. A method of milling at least one hole into a honeycomb structure positioned on a part, the method comprising:
storing dimensional information of the part in a computer processor;
locating a timing feature on the part;
positioning a milling tool at an angle relative to the honeycomb structure based upon the location of the timing feature and
the dimensional information; and
milling a first hole into the honeycomb structure at a feed rate of between approximately 1 inch per minute and approximately
3 inches per minute.
|