IP Library › Granted Patent US 12,528,258
Granted Patent B2
US 12,528,258 · App. 18/202,760 · Granted Jan 20, 2026

Manufacturing fiber-reinforced composite body with multiple laminated layers

Inventor: Michael McKeon (Ellington, CT)
Assignee: RTX Corporation
B29C70/22B29C70/30B29C70/54B29C2793/0081B29L2031/3076
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Quick Facts
Patent No.
US 12,528,258
App. No.
18/202,760
Granted
Jan 20, 2026
Kind
B2
Abstract

A method is provided for manufacturing an object. This method includes: arranging a first portion of a fabric over a tool; cutting out a section of the first portion of the fabric to provide a first ply, and disposing the first ply on the tool; arranging a second portion of the fabric over the tool; cutting out a section of the second portion of the fabric to provide a second ply, and stacking the second ply on the first ply; and consolidating a laminate stack on the tool to form the object, the laminate stack including the first ply, the second ply and a polymer matrix impregnating the first ply and the second ply.

Claims (49)

1 . A method for manufacturing an object, comprising:

arranging a first portion of a fabric over a tool;

cutting out a section of the first portion of the fabric to provide a first ply, and disposing the first ply on the tool;

re-orienting the tool using a support device following the disposing of the first ply on the tool, wherein the support device rotates about an axis to re-orient the tool relative to the fabric;

arranging a second portion of the fabric over the tool;

cutting out a section of the second portion of the fabric to provide a second ply, and stacking the second ply on the first ply, wherein the cutting out of the section of the second portion of the fabric is after the re-orienting the tool; and

consolidating a laminate stack on the tool to form the object, the laminate stack including the first ply, the second ply and a polymer matrix impregnating the first ply and the second ply.

2 . The method of claim 1 , wherein the section cut out of the first portion of the fabric is an interior section of the first portion of the fabric.

3 . The method of claim 1 , further comprising

impregnating the first ply with the polymer matrix following the cutting out of the section of the first portion of the fabric; and

impregnating the second ply with the polymer matrix following the cutting out of the section of the second portion of the fabric.

4 . The method of claim 1 , wherein

the fabric comprises a prepreg fabric; and

the prepreg fabric includes fiber-reinforcement impregnated with the polymer matrix.

5 . The method of claim 1 , wherein the polymer matrix comprises a thermoset matrix.

6 . The method of claim 1 , wherein the polymer matrix comprises a thermoplastic matrix.

7 . The method of claim 1 , wherein the arranging of the first portion of the fabric comprises pulling the first portion of the fabric over the tool.

8 . The method of claim 7 , further comprising unrolling the fabric from a roll of the fabric during the pulling the first portion of the fabric over the tool.

9 . The method of claim 7 , further comprising:

rolling up a remnant of the fabric during the pulling the first portion of the fabric over the tool;

the first portion of the fabric located between the remnant of the fabric and the second portion of the fabric.

10 . The method of claim 7 , further comprising removing a backer from the fabric during the pulling of the first portion of the fabric over the tool.

11 . The method of claim 1 , further comprising:

forming the fabric upstream of the tool along a manufacturing line;

the forming of the fabric comprising weaving fibers together.

12 . The method of claim 1 , wherein the section of the first portion of the fabric is cut out using a knife attached to a robotic manipulator.

13 . The method of claim 1 , wherein the section of the first portion of the fabric is cut out using an energy beam.

14 . The method of claim 1 , further comprising pressing the first ply against the tool.

15 . The method of claim 1 , further comprising pressing the laminate stack between the tool and a second tool.

16 . The method of claim 1 , wherein the object is configured as a component for an aircraft.

17 . A method for manufacturing an object, comprising:

disposing a first portion of a fabric over a tool;

cutting the first portion of the fabric to leave a first ply of the fabric on the tool;

rotating the tool about an axis using a support device to reorient the tool relative to the fabric after cutting the first portion of the fabric;

disposing a second portion of the fabric over the first ply of the fabric by moving a remnant of the first portion of the fabric following the cutting of the first portion of the fabric;

cutting the second portion of the fabric to leave a second ply of the fabric on the first ply of the fabric; and

consolidating a laminate stack on the tool, the laminate stack including the first ply of the fabric, the second ply of the fabric and a polymer matrix.

18 . The method of claim 17 , further comprising:

drawing the first portion of the fabric and the second portion of the fabric from a supply roll of the fabric; and

rolling up the remnant of the first portion of the fabric onto a remnant roll of the fabric.

19 . A method for manufacturing an object, comprising:

forming a fabric upstream of a tool along a manufacturing line, the forming of the fabric comprising weaving fibers together;

dipping the fabric into an impregnation bath upstream of the tool along the manufacturing line to impregnate at least a portion of the fibers with a polymer matrix;

pulling the fabric over the tool;

cutting the fabric using a robotic manipulator to leave a first ply of the fabric on the tool;

rotating the tool about an axis using a support device to reorient the tool relative to the fabric after cutting the fabric using the robotic manipulator to leave the first ply of the fabric on the tool;

further pulling the fabric over the first ply;

cutting the fabric using the robotic manipulator to leave a second ply of the fabric on the first ply of the fabric; and

consolidating a laminate stack, the laminate stack including the first ply of the fabric, the second ply of the fabric and a polymer matrix.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 21, 2024
From: MCKEON, MICHAEL
To: RAYTHEON TECHNOLOGIES CORPORATION
Reel/Frame 066854/0860 →
CHANGE OF NAME Recorded Jul 27, 2023
From: RAYTHEON TECHNOLOGIES CORPORATION
To: RTX CORPORATION
Reel/Frame 064402/0837 →
Continuity (1)
Related Publication 20240391183A1 · Nov 28, 2024
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