Method and apparatus for superplastically forming a workpiece

Details Method and apparatus for superplastically forming a workpiece Method and apparatus for superplastically forming a workpiece

2005-06-21

2005-06-21

Jones, David (Department: 3725)

Metal deforming

By application of fluent medium, or energy field

Using fixed die

C072S056000, C029S421100

Reexamination Certificate

active

06907761

ABSTRACT:
A method of superplastically forming a workpiece comprises placing the workpiece (16) in a die (14) and heating the workpiece (16) to a temperature at which the workpiece (16) is superplastically formable. Pressure is applied to the workpiece (16) to superplastically form the workpiece (16) to the shape of the die (14). The temperature of the workpiece (16) is measured and is analysed to determine the measured temperature distribution of the workpiece (16) at stages in the superplastic forming process. A database of desired temperature distributions of the workpiece (16) at different stages in the superplastic forming process is kept. The measured temperature distribution of the workpiece (16) at each stage in the superplastic forming process is compared with the desired temperature distribution of the workpiece (16) at the stage in the superplastic forming process and heating means and/or cooling means (36, 38, 40, 46, 48, 58, 60, 66, 68, 94, 96) are controlled such that the temperature distribution of the workpiece (16) is adjusted to more closely match the desired temperature distribution of the workpiece (16) to control the thickness of the workpiece (16).

REFERENCES:
patent: 4181000 (1980-01-01), Hamilton et al.
patent: 4474044 (1984-10-01), Leistner et al.
patent: 4811582 (1989-03-01), Story et al.
patent: 4901552 (1990-02-01), Ginty et al.
patent: 5007265 (1991-04-01), Mahoney et al.
patent: 5277045 (1994-01-01), Mahoney et al.
patent: 5359872 (1994-11-01), Nashiki
patent: 5592842 (1997-01-01), Nyrhila
patent: 5737954 (1998-04-01), Yasui
patent: 6613164 (2003-09-01), Dykstra et al.
patent: 673603 (1990-03-01), None
patent: 0 703 019 (1996-03-01), None
patent: 719753 (1980-03-01), None
patent: 721178 (1980-03-01), None

Affiliated with

Also associated with

Rating

Method and apparatus for superplastically forming a workpiece does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for superplastically forming a workpiece, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for superplastically forming a workpiece will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3508643