Claims
- 1. A method for inserting through-the-thickness reinforcement into an uncured laminated composite material, comprising the step of:
driving a rod into the uncured laminated composite material with an impulsive force.
- 2. A method for inserting through-the-thickness reinforcement into an uncured laminated composite material according to claim 1 wherein the rod is a cured composite material.
- 3. A method for inserting through-the-thickness reinforcement into an uncured laminated composite material according to claim 1 wherein the rod is metallic.
- 4. A method for inserting through-the-thickness reinforcement into an uncured laminated composite material according to claim 1, wherein the rod has a diameter that is smaller than the scale of the largest anomaly of the uncured laminated composite material.
- 5. A method for inserting through-the-thickness reinforcement into an uncured laminated composite material according to claim 1, further comprising the step of:
shearing the rod from a rod blank.
- 6. A method for inserting through-the-thickness reinforcement into an uncured laminated composite material according to claim 1 wherein prior to said driving step, the method comprises:
robotically positioning the rod.
- 7. A method for inserting through-the-thickness reinforcement into an uncured laminated composite material according to claim 1 wherein the temperature of the uncured laminated composite material remains substantially at the ambient temperature.
- 8. A method for inserting through-the-thickness reinforcement into an uncured laminated composite material according to claim 1 wherein said driving step is accomplished by a ram thrusting the rod.
- 9. A method for inserting through-the-thickness reinforcement into an uncured laminated composite material according to claim 8 wherein the ram is hydraulically propelled.
- 10. A method for inserting through-the-thickness reinforcement into an uncured laminated composite material according to claim 8 wherein the ram is electrically propelled.
- 11. A method for inserting through-the-thickness reinforcement into an uncured laminated composite material according to claim 8 wherein the ram is magnetically propelled.
- 12. A method for inserting through-the-thickness reinforcement into an uncured laminated composite material according to claim 8 wherein the ram is pneumatically propelled.
- 13. A method for inserting through-the-thickness reinforcement into an uncured laminated composite material according to claim 12 further comprising the step of:
shearing the rod from a rod blank.
- 14. A method for inserting through-the-thickness reinforcement into an uncured laminated composite material according to claim 13 wherein prior to said driving step, the method comprises:
robotically positioning the rod.
- 15. A machine for inserting a rod into an uncured laminated composite material, comprising:
a rod guide; a ram for thrusting the rod along said rod guide, said ram having a hardened driving portion face; and a ram actuator for propelling said ram.
- 16. A machine for inserting a rod into an uncured laminated composite material according to claim 15 wherein the hardened driving portion face of said ram has been hardened with a silicon carbide coating.
- 17. A machine for inserting a rod into an uncured laminated composite material according to claim 15 wherein the hardened driving portion face of said ram has been hardened with a diamond coating.
- 18. A machine for inserting a rod into an uncured laminated composite material according to claim 15, further comprising a ram housing, said ram housing having internal walls that define a ram chamber through which said ram slides, said rod guide being included inside said ram chamber.
- 19. A machine for inserting a rod into an uncured laminated composite material according to claim 18, further comprising:
a magazine for storing rods, said magazine being in operable relationship with said ram housing; and a rod loader for delivering rods from said magazine into said ram chamber.
- 20. A machine for inserting a rod into an uncured laminated composite material according to claim 18, further comprising:
a magazine in operable relationship with said ram housing; a continuous rod material supplier in said magazine for supplying continuous rod material to be cut; and a cutter in operable relationship with said continuous rod supplier, said cutter being positioned to cut the continuous rod material to form rods.
- 21. A machine for inserting a rod into an uncured laminated composite material according to claim 15 wherein said ram actuator is pneumatically actuated.
- 22. A machine for inserting a rod into an uncured laminated composite material according to claim 15 wherein said ram actuator is hydraulically actuated.
- 23. A machine for inserting a rod into an uncured laminated composite material according to claim 15 wherein said ram actuator is electrically actuated.
- 24. A machine for inserting a rod into an uncured laminated composite material according to claim 15 wherein said ram actuator is magnetically actuated.
- 25. A machine for inserting a rod into an uncured laminated composite material according to claim 15, further comprising a robot for robotically controlling placement of the rod.
- 26. A method of making composite rod blanks, comprising the steps of:
placing a mixture of essentially unidirectional fiber material and uncured resin into a mold for a plurality of connected rods, the fiber orientation being substantially aligned with the length of each rod; and curing the mixture.
- 27. A method of making composite rod blanks according to claim 26 wherein the mixture of essentially unidirectional fiber material and uncured resin is prepreg material.
- 28. A method of making composite rod blanks according to claim 26, further comprising the step of:
positioning a relatively small number of fibers perpendicular to the length of each rod and across the boundary of adjacent rods.
- 29. A composite rod blank made by the method of claim 26.
- 30. A medical implant, comprising:
fibers arranged to provide strength to the implant; a matrix supporting said fibers; and time-releasable medicine filling spaces in the medical implant not occupied by said fibers and matrix.
- 31. An automotive tire, comprising:
a tire outer wall having a tire tread on its outer circumference and tire sidewalls on the side portions; a tire belt laid proximal to said tire tread; a tire body ply laid proximal to said tire tread and said tire sidewalls; a plurality of rods inserted through the interface of said tire body ply and said tire belt; a plurality of rods inserted through the interface of said tire tread and said tire belt; and a plurality of rods inserted through the interface of said tire sidewall and said tire body ply.
CLAIM OF BENEFIT OF PROVISIONAL APPLICATION
[0001] Pursuant to 35 U.S.C. Section 119, the benefit of priority from provisional application No. 60/080,241, with a filing date of Apr. 1, 1998, is claimed for this non-provisional application.
ORIGIN OF THE INVENTION
[0002] The invention described herein was made by an employee of the U.S. Government and may be used by or for the government for governmental purposes without the payment of royalties thereon or therefor.
Provisional Applications (1)
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Number |
Date |
Country |
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60080241 |
Apr 1998 |
US |