Method for controlling thickness during lay-up and fabrication o

Details Method for controlling thickness during lay-up and fabrication o Method for controlling thickness during lay-up and fabrication o

1996-03-29

1998-06-02

Crispino, Richard

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156285, 1563077, 264162, 264258, 264259, 264511, B29C 6502, B32B 3116, B32B 3120

Patent

active

057593256

ABSTRACT:
A method and apparatus for controlling the thickness of press-cured composite articles during the manufacture thereof. The method includes a preparatory or prefabrication stage wherein prepreg plies are layed up and compacted to form a plurality of laminates that define a final laminate package that defines the uncured configuration of the composite article. The final laminate package may include supplemental ply-packs layed up at the mid-plane or neutral axis of the final laminate package for the purpose of controlling the overall thickness of the final laminate package. The prepreg plies layed up in the preparatory stage have been precut to conform to the final net shape of the composite article, but include a predetermined overbuild in the width dimension to facilitate control of thickness during cure of the final laminate package. The method further includes a fabrication stage wherein a deformable, back-pressure system is abutted in combination with the final laminate package, which is then subjected to a cure cycle to form the press-cured composite article. The deformable, back-pressure system is controllably deformed during the cure cycle to control and limit the lateral expansion of the final laminate package. The deformable, back-pressure system also prevents fiber washout during the cure cycle.

REFERENCES:
patent: 3939024 (1976-02-01), Hoggatt
patent: 4624820 (1986-11-01), Barraclough
patent: 5372479 (1994-12-01), Byrnes et al.
patent: 5431538 (1995-07-01), Schmaling et al.
patent: 5433915 (1995-07-01), Yamamoto et al.

Affiliated with

Also associated with

Rating

Method for controlling thickness during lay-up and fabrication o 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 for controlling thickness during lay-up and fabrication o, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for controlling thickness during lay-up and fabrication o will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1455045