Natural path forming for composite material

• US 10,213,954 B2
• Filed: 02/19/2016
• Issued: 02/26/2019
• Est. Priority Date: 02/19/2016
• Status: Active Grant

• Current Assignee: The Boeing Co.
• Original Assignee: The Boeing Co.
• Inventors: Stawski, Stanley Warren
• Primary Examiner(s): Del Sole, Joseph S
• Assistant Examiner(s): Hohenbrink, Jr., Lawrence D.
• Application Number:
  US15/047,834
• Publication Number:
  US 20170239876A1
• Time in Patent Office: 1,103 Days
• Field of Search: 425500, 425383, 425403, 264258, 264299, 264313, 264316
• CPC Class Codes: B29C 53/02 Bending or folding B29C53/22, B29C53/34, B29C53/36, B29C53/56 take precedence
• CPC Class Codes: B29C 53/04 of plates or sheets B29C63/04 takes precedence; bending or folding paper B31F1/0003; folding films B65H45/00
• CPC Class Codes: B29C 53/06 Forming folding lines by pressing or scoring
• CPC Class Codes: B29C 53/36 Bending and joining, e.g. for making hollow articles B29C53/56 takes precedence
• CPC Class Codes: B29C 53/82 Cores or mandrels
• CPC Class Codes: B29K 2277/00 Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as reinforcement
• CPC Class Codes: B29K 2307/04 Carbon
• CPC Class Codes: B29K 2309/08 Glass

Abstract

A method includes the step placing composite laminate material onto a three dimensional forming tool with an external surface and at least four junctures associated with the external surface. Each juncture is positioned between two adjacent planar surfaces in which each of the two adjacent surfaces extend in a different plane, the junctures converge and each juncture defines a line of direction. The three dimensional forming tool arranged in a two dimensional pattern, has the lines of direction and the two adjacent planar surfaces positioned on opposing sides of each of the at least four junctures are all positioned in a common plane. The line of direction of each of the at least four junctures in the two dimensional pattern converge to a common point. At least one line of direction is not in alignment beyond the common point with another line of direction. Tool apparatus is also provided.

Claims

1. A method for forming a composite component, comprising the step of:

placing a composite laminate material onto a three dimensional forming tool which comprises;

an external surface, comprising;

a portion of the forming tool comprises three successive planar surfaces extending in a direction about a perimeter of the three dimensional forming tool in a direction transverse to a length of the three dimensional forming tool wherein two planar surfaces are spaced apart from one another with an intermediate planar surface positioned between the two planar surfaces;

a second portion of the forming tool positioned adjacent to the portion of the forming tool comprises three successive planar surfaces extending in a direction about the perimeter of the three dimensional forming tool in a direction transverse to the length of the three dimensional forming tool wherein two planar surfaces are spaced apart from one another with an intermediate planar surface positioned between the two planar surfaces, wherein;

the intermediate planar surface of the second portion is positioned adjacent to the intermediate planar surface of the portion of the forming tool;

the intermediate planar surface of the second portion extends in a different plane relative to the intermediate planar surface of the portion; and

the perimeter maintains a constant length along the length of the three dimensional forming tool; and

at least four junctures associated with the external surface wherein the composite laminate material overlies the at least four junctures, wherein;

each juncture is positioned between two adjacent planar surfaces in which each of the two adjacent planar surfaces extend in a different plane;

each of the at least four junctures comprises a line of direction in which each line of direction extends in a different direction and

the at least four junctures converge such that with the three dimensional forming tool arranged in a two dimensional pattern, the line of direction of each of the at least four junctures and the two adjacent planar surfaces positioned on opposing sides of each of the at least four junctures are all positioned in a common plane, wherein the line of direction of each of the at least four junctures in the two dimensional pattern converge to a common point with at least one line of direction not in alignment beyond the common point with another line of direction.

2. The method for forming a composite component of claim 1, wherein the composite laminate material comprises a plurality of fibers such that the step of placing the composite laminate material further includes positioning the plurality of fibers to extend along a length of the three dimensional forming tool.

3. The method for forming a composite component of claim 2, wherein the plurality of fibers are unidirectional in orientation.

4. The method for forming a composite component of claim 1, wherein the composite laminate material comprises a fiber constructed of one of carbon, aramid and fiberglass.

5. The method for forming a composite component of claim 1, wherein the composite laminate material comprises one of thermoset and thermoplastic resin.

6. The method for forming a composite component of claim 1, further includes the step of heating the composite laminate material.

7. The method for forming a composite component of claim 6, wherein the step of heating includes heating the composite laminate material to a temperature within a range of temperatures inclusive of a temperature of seventy degrees Fahrenheit (70°

F.) up to and inclusive of two hundred degrees Fahrenheit (200°

F.).

8. The method for forming a composite component of claim 6, wherein the step of heating includes heating the composite laminate material for a time period within up to one hour.

9. The method for forming a composite component of claim 6, wherein:

the intermediate planar surface of the portion of the forming tool is non-parallel to the two planar surfaces, such that when placing the composite laminate material which has been heated onto the three successive planar surfaces the two planar surfaces form two flanges and the intermediate planar surface forms a web positioned between and connecting the two flanges.

10. The method for forming a composite component of claim 9, the step of placing the laminate composite material onto the three dimensional forming tool further includes adjacent plies within the composite laminate material sliding relative to one another in a direction of the perimeter of the three dimensional forming tool.

11. A three dimensional forming tool for forming a composite component, comprising:

an external surface, comprising;

a portion of the forming tool comprises three successive planar surfaces extending in a direction about a perimeter of the three dimensional forming tool in a direction transverse to a length of the three dimensional forming tool wherein two planar surfaces are spaced apart from one another with an intermediate planar surface positioned between the two planar surfaces;

a second portion of the forming tool positioned adjacent to the portion of the forming tool comprises three successive planar surfaces extending in a direction about the perimeter of the three dimensional forming tool in a direction transverse to the length of the three dimensional forming tool wherein two planar surfaces are spaced apart from one another with an intermediate planar surface positioned between the two planar surfaces, wherein;

the intermediate planar surface of the second portion is positioned adjacent to the intermediate planar surface of the portion of the forming tool;

the intermediate planar surface of the second portion extends in a different plane relative to the intermediate planar surface of the portion; and

the perimeter maintains a constant length along the length of the three dimensional forming tool; and

at least four junctures associated with the external surface, wherein;

each juncture is positioned between two adjacent planar surfaces in which each of the two adjacent planar surfaces extend in a different plane;

each of the at least four junctures comprises a line of direction in which each line of direction extends in a different direction; and

the at least four junctures converge such that with the three dimensional forming tool arranged in a two dimensional pattern, the line of direction of each of the at least four junctures and the two adjacent planar surfaces positioned on opposing sides of each of the at least four junctures are all positioned in a common plane, wherein the line of direction of each of the at least four junctures in the two dimensional pattern converge to a common point with at least one line of direction not in alignment beyond the common point with another line of direction.

12. The three dimensional forming tool of claim 11, wherein the intermediate planar surface of the portion of the forming tool is non-parallel to the two planar surfaces wherein the two spaced apart planar surfaces are used to form two flanges and the intermediate planar surface is used to form a web positioned between the two flanges.

13. The three dimensional forming tool of claim 12, wherein a juncture forming a radius is positioned between the intermediate planar surface and each of the two spaced apart planar surfaces.

14. The three dimensional forming tool of claim 12, wherein with the two planar surfaces spaced apart from one another converging toward one another as the two planar surfaces extend along the length of the three dimensional forming tool, the intermediate planar surface narrows in a width direction of the three dimensional forming tool.

15. The three dimensional forming tool of claim 14, wherein the two planar surfaces spaced apart from one another increase in height relative to a flat support surface upon which the three dimensional forming tool is supported and the intermediate planar surface extends in a direction along the length of the three dimensional forming tool such that the intermediate planar surface increases in height above the flat support surface.

16. The three dimensional forming tool of claim 12, wherein with the two planar surfaces spaced apart from one another diverging away from one another as the two planar surfaces extend along the length of the three dimensional forming tool, the intermediate planar surface increases in a width direction of the three dimensional forming tool.

17. The three dimensional forming tool of claim 16, wherein the two planar surfaces spaced apart from one another decrease in height relative to a flat support surface upon which the three dimensional forming tool is supported and the intermediate planar surface extends in a direction long the length of the three dimensional forming tool such that the intermediate planar surface decreases in height above the flat support surface.