METHOD FOR MANUFACTURING A FIBER-REINFORCED COMPOSITE SABOT WITH IMPROVED INTERFACIAL CHARACTERISTICS BY USING SHORT FIBER
First Claim
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1. A method for manufacturing a fiber-reinforced composite sabot by laminating the prepreg fiber in the radial direction comprising:
- a sub-segment forming step wherein four or more of sub-segments are formed with predetermined form by superposing a plurality of plies;
a segment forming step wherein three or more of segments are formed by laminating the sub-segments;
a piece forming step wherein three pieces are formed by laminating the segments; and
a sabot forming step wherein a sabot is formed by combining the three pieces;
the sub-segment forming step further comprising the step of forming a preliminary laminating board by superposing a plurality of plies and the step of forming a sub-segment by cutting the preliminary laminating board into a predetermined form wherein the step of forming a preliminary laminating board includes forming a preliminary laminating board by depositing a short fiber between each ply when laminating a plurality of plies.
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Abstract
Disclosed is a method for manufacturing a fiber-reinforced composite sabot for use in APFSDS (Armor Piercing Fin Stabilized Discarding Sabot) which has improved strength to weight ratio with low weight and high strength by using one-directional fiber prepreg ply lamination method. In order to prevent delamination of the radially laminated composite sabot, short fibers are deposited on the interfacial plane thereby spreading the expansion force to fiber as well as the resin.
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Citations
8 Claims
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1. A method for manufacturing a fiber-reinforced composite sabot by laminating the prepreg fiber in the radial direction comprising:
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a sub-segment forming step wherein four or more of sub-segments are formed with predetermined form by superposing a plurality of plies; a segment forming step wherein three or more of segments are formed by laminating the sub-segments; a piece forming step wherein three pieces are formed by laminating the segments; and a sabot forming step wherein a sabot is formed by combining the three pieces; the sub-segment forming step further comprising the step of forming a preliminary laminating board by superposing a plurality of plies and the step of forming a sub-segment by cutting the preliminary laminating board into a predetermined form wherein the step of forming a preliminary laminating board includes forming a preliminary laminating board by depositing a short fiber between each ply when laminating a plurality of plies. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification