A composite fabrication apparatus which may include a first tooling die and a second tooling die movable with respect to each other; a temperature control system having induction coils disposed in thermal contact with the first tooling die and the second tooling die; a first die susceptor provided o
A composite fabrication apparatus which may include a first tooling die and a second tooling die movable with respect to each other; a temperature control system having induction coils disposed in thermal contact with the first tooling die and the second tooling die; a first die susceptor provided on the first tooling die and a second die susceptor provided on the second tooling die and connected to the induction coils; and a cooling system disposed in thermal contact with the first tooling die and the second tooling die. A resin transfer system delivers resin from a resin source to the tooling dies to allow resin transfer molding. A composite fabrication method is also disclosed.
대표청구항▼
1. A method of molding a composite part using a resin transfer molding process, comprising the steps of: (A) placing a susceptor on and covering respective substantially matching contoured surfaces of opposing dies, each of the dies comprising multiple stacked metal sheets positioned in a generally
1. A method of molding a composite part using a resin transfer molding process, comprising the steps of: (A) placing a susceptor on and covering respective substantially matching contoured surfaces of opposing dies, each of the dies comprising multiple stacked metal sheets positioned in a generally perpendicular configuration relative to the contoured surfaces, wherein the adjacent stacked metal sheets are separated by air gaps forming a plurality of passageways for passing a cooling medium, and said susceptors defining a mold cavity;(B) introducing a fiber preform into the mold cavity between the susceptors;(C) heating the mold cavity by inductively heating the susceptors following closing and substantially sealing of said mold cavity with respect to a pressure external to said mold cavity; and(D) infusing the preform with resin to form a part by transferring resin from a resin source into the sealed mold cavity. 2. The method of claim 1, further comprising the step of: (G) evacuating the mold cavity before step (D) is completed. 3. The method of claim 1, further comprising cooling the susceptors by flowing a cooling medium through each passageway defined between sheets in the stacked metal sheets and flowing the cooling medium proximate the susceptors. 4. The method of claim 3, wherein the cooling medium is delivered to the susceptors through the passageways in said opposing dies, said passageways arranged substantially perpendicular to said susceptors. 5. The method of claim 1, wherein step (D) includes transferring the resin from the resin source through an opening in one of the susceptors. 6. The method of claim 1, wherein step (D) includes flowing excess resin in the mold cavity through an outlet vent in one of the susceptors. 7. The method of claim 1, further comprising the step of: exchanging the susceptors for different susceptors after cooling the susceptors and removing the part, and then, repeating steps (A) through (D). 8. A method of molding a composite part using a resign transfer molding process, comprising the steps of: (A) placing a susceptor on and covering respective substantially matching contoured surfaces of opposing dies, each of the dies comprising multiple stacked metal sheets positioned in a generally perpendicular configuration relative to the contoured surfaces, and said susceptors defining a mold cavity;(B) introducing a fiber preform into the mold cavity between the susceptors;(C) heating the mold cavity by inductively heating induction coils coupled to the susceptors following closing and substantially sealing of said mold cavity with respect to a pressure external to said mold cavity;(D) evacuating the mold cavity;(E) infusing the preform with resin to form a part by transferring resin from a resin source into the sealed mold cavity(F) cooling the part by cooling the susceptors by passing a cooling medium through a gap defined between adjacent sheets in the in the dies; and,(G) removing the part after the part has been cooled. 9. The method of claim 8, wherein said step (F) includes flowing the cooling medium through the gap proximate the susceptors. 10. The method of claim 9, wherein said step (F) includes delivering the cooling medium proximate the susceptors through passageways in said opposing die, said passageways arranged substantially perpendicular to said susceptors. 11. The method of claim 8, wherein said step (E) includes transferring the resin from the resin source through an opening in one of the susceptors. 12. The method of claim 8, wherein said step (E) includes flowing excess resin in the mold cavity through an outlet vent in one of the susceptors. 13. The method of claim 8, further comprising the step of: exchanging the susceptors for different susceptors after step F has been completed, and then, repeating steps (A) through F. 14. The method of claim 8, wherein said composite part comprises a vehicle part. 15. A method of molding a composite part using a resin transfer molding process, comprising the steps of: (A) placing a susceptor on and covering respective substantially matching contoured surfaces of opposing dies, each of the dies comprising multiple stacked metal sheets positioned in a generally perpendicular configuration relative to the contoured surface, said susceptors defining a mold cavity:(B) introducing a fiber preform into the mold cavity between the susceptors:(C) heating the mold cavity by inductively heating the susceptors following closing and substantially sealing of said mold cavity with respect to a pressure external to said mold cavity;(D) infusing the preform with resin to form a part by transferring resin from a resin source into the sealed mold cavity,(E) cooling the part by flowing a cooling medium through a plurality of passageways defined between adjacent wherein the adjacent stacked metal sheets are separated by air gaps forming a plurality of passageways for passing a cooling medium sheets in the stacked metal sheets in each of the dies and passing the cooling medium proximate the susceptors; and,(F) removing the part after the part has been cooled. 16. The method of claim 15, further comprising the step of: (G) evacuating the mold cavity before step (D) is completed. 17. The method of claim 15, further comprising the step of: exchanging the susceptors for different susceptors after step (F) has been completed, and then, repeating steps (A) through (F). 18. The method of claim 15, wherein said composite part comprises a vehicle part. 19. A method of claim 1 further comprising the steps of: (E) cooling the part by cooling the susceptors; and(F) removing the part after the part has been cooled. 20. The method of claim 15, wherein said step of cooling comprises delivering the cooling medium through passageways in said opposing die, said passageways arranged substantially perpendicular to said susceptors.
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