Patent ID: 7018480

Claim:
A manufacturing apparatus for forming a fiber reinforced composite member by forming a fabric on the surface of a mandrel and infiltrating the formed fabric with a matrix, comprising: a mandrel having a length that is longer than a length of the fiber reinforced composite member, wherein the mandrel protrudes from the fiber reinforced composite member; the mandrel further comprising an end portion having a diameter increasing toward an end of the mandrel; and the end portion is separable into (1) an annular portion having a diameter larger than an outer diameter of an end portion of the fiber reinforced composite, member, and (2) a remaining portion, wherein a groove or a protrusion interlocking with fabric is formed on the surface of the annular portion in such a manner than when a part of the mandrel forming a product portion is removed, a portion of the mandrel is left as integral with the fabric and fails to move on the fabric.