Patent ID: 9718197
Date: 2017-08-01
CPC Classifications: B22F,B26B,B26D,B32B,C04B,C22C

Claim:
1. A composite knife, comprising: a middle layer of fibrous preform, a portion of said middle layer comprising a ceramic insert placed longitudinally at the periphery of said middle layer and being substantially coplanar with said fibrous preform, said ceramic insert including a top surface and a bottom surface, and an exposed cutting blade portion; a carrier structure to support said exposed cutting blade portion, said carrier structure comprising at least one top layer and at least one bottom layer of fibrous preform, said middle layer disposed between said at least one top layer and said at least one bottom layer and in contact thereto; a metallic material, said metallic material infiltrated within said middle layer said metallic material bonding said middle layer within said carrier structure, said metallic material bonding said top and bottom surfaces of said ceramic insert to said carrier structure, said metallic material extending outward to encapsulate said composite knife; and wherein said composite knife has a density of <4.7 gr/cc.