Injection molded composite blank and guide
This specification discloses an article of manufacture. The article of manufacture has at least one structural blank and at least one guide. The structural blank has a plurality of oriented fiber plies in a thermoplastic matrix. The guide has a plurality of random dispersed fibers in a thermoplastic matrix. The guide is affixed to the structural blank by injection molding and over molding the guide onto the structural blank. The article of manufacture can take a number of forms for use in industries such as aircraft, automobiles, motorcycles, bicycles, trains or watercraft.
1. An article of manufacture comprising a thermoplastic injection molded guide melt bonded to a thermoplastic structural blank, wherein
the thermoplastic injection molded guide comprises a guide thermoplastic matrix,
the thermoplastic structural blank has a structural blank length, a structural blank width, and a structural blank height wherein the structural blank height is less than or equal to the structural blank width and the structural blank width is less than or equal to the structural blank length, and the thermoplastic structural blank comprises;
at least one ply containing a plurality of oriented continuous fibers in a structural blank thermoplastic matrix wherein the plurality of oriented continuous fibers are selected from the group consisting of unidirectional oriented fibers and woven oriented fibers, and the at least one ply lies in a structural blank horizontal plane defined by the structural blank length and the structural blank width,
a structural blank top side corresponding to one side of the structural blank horizontal plane, and
a structural blank bottom side corresponding to the side opposite of the structural blank top side of the structural blank horizontal plane, and
the thermoplastic injection molded guide is molded to at least a portion of the structural blank top side, around the structural blank height and to at least a portion of the structural blank bottom side, and
a guide hole running through at least a portion of the guide in a plane perpendicular with the at least one ply containing a plurality of oriented continuous fibers,
wherein the guide hole is within a perimeter of the structural blank horizontal plane, the guide material does not touch an internal edge of an optional hole in the thermoplastic structural blank, and the thermoplastic injection molded guide further comprises a plurality of randomly dispersed fibers in the guide thermoplastic matrix.
2. The article of manufacture of claim 1 , wherein the randomly dispersed fibers in the guide thermoplastic matrix comprise a type of fiber selected from the group consisting of carbon fiber, glass fiber, polyaramide fiber or combinations thereof.
3. The article of manufacture of claim 1 , wherein the oriented continuous fibers in the structural blank thermoplastic matrix comprise a type of fiber selected from the group consisting of carbon fiber, glass fiber, polyaramide fiber or combinations thereof.
4. The article of manufacture of claim 1 , wherein the amount of oriented continuous fibers in the structural blank thermoplastic matrix is between 5% and 60% by weight of the structural blank.
5. The article of manufacture of claim 1 , wherein the amount of randomly dispersed fibers in the guide thermoplastic matrix is between 5% and 60% by weight of the structural blank.
6. The article of manufacture of claim 1 , wherein the structural blank thermoplastic matrix comprises a thermoplastic selected from the group consisting of polyphenylene sulphide, polyetherimide, polyetheretherketone, polyetherketoneketone, polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polyethersulfone and combinations thereof.
7. The article of manufacture of claim 6 , wherein the guide thermoplastic matrix comprises a thermoplastic selected from the group consisting of polyphenylene sulphide, polyetherimide, polyetheretherketone, polyetherketoneketone, polyethylene terephthalate, polyester, polybutylene terephthalate, polyethylene naphthalate, polyethersulfone and combinations thereof.
8. The article of manufacture of claim 7 , wherein the structural blank thermoplastic matrix and the guide thermoplastic matrix comprise the same type of thermoplastic.
9. The article of manufacture of claim 7 , wherein the structural blank thermoplastic matrix comprises a different thermoplastic than the guide thermoplastic matrix.
10. The article of manufacture of claim 1 , wherein the article is void of an adhesive layer between the guide and the structural blank.
11. A process for producing the article of manufacture of claim 1 comprising the structural blank and the guide, said process comprising the steps of:
A) manufacturing the structural blank by laying the at least one ply of oriented fibers in a structural blank thermoplastic matrix on top of one another and heat compression molding said at least one ply to form the structural blank,
B) injection molding the guide comprising a guide thermoplastic matrix and a plurality of randomly dispersed fibers onto the structural blank wherein the guide is affixed to the structural blank by melt bonding.
12. The process of claim 11 , further comprising the step of corona treating the structural blank to modify the surface area to be more bondable with the thermoplastic of the guide prior to injection molding the guide to the structural blank.
13. The process of claim 11 , further comprising the step of flame treating the structural blank to modify the surface area to be more bondable with the thermoplastic of the guide prior to injection molding the guide to the structural blank.