Process for forming a sector of an air intake lip, device...

Details Process for forming a sector of an air intake lip, device... Process for forming a sector of an air intake lip, device...

2005-03-15

2005-03-15

Swiatek, Robert P. (Department: 3643)

Aeronautics and astronautics

Aircraft power plants

C072S257000, C072S260000

Reexamination Certificate

active

06866223

ABSTRACT:
The object of the invention is a process for forming sectors of the air intake lip of an aircraft nacelle, of U-shaped cross-section, characterized in that it comprises producing, from a cylindrical billet (11) of a suitable material, by hot die pressing, a tubular profile (12) of U-shaped cross-section whose ends are interconnected, a portion of the section formed by the U having a development less by several percent than the development of the smallest cross-section of the lip sector to be obtained, in giving to the profile (12) at the outlet of the die (15) a curvature whose radius is substantially equal to the mean radius of said sector, then in forming and calibrating the profile (12) to the final shapes of the sector by hydraulic expansion in a matrix whose interior corresponds to the external volume of said sector increased by the resilient return of the material to be expanded, and finally, cutting off the tubular product thus formed to separate the portion of U-shaped cross-section constituting said lip sector.

REFERENCES:
patent: 2133874 (1938-10-01), Sparks
patent: 2591062 (1952-04-01), Gillett
patent: 4458863 (1984-07-01), Smith
patent: 5305626 (1994-04-01), Tiekink
patent: 5600990 (1997-02-01), Kelly et al.
patent: 6328258 (2001-12-01), Porte

Affiliated with

Also associated with

Rating

Process for forming a sector of an air intake lip, device... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for forming a sector of an air intake lip, device..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for forming a sector of an air intake lip, device... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3438902