LOWER CROSS MEMBER OF VEHICLE

Introduced is a lower part crossmember of a vehicle. The lower part crossmember of the vehicle according to the present invention, as the lower part crossmember disposed at a floor of a vehicle, comprises a core member and a reinforcing layer. The core member is formed of a composite material containing at least equal to or more than 70 wt% of a unidirectional carbon fiber. The reinforcing layer is formed of the composite material containing at least equal to or more than 70 wt% of a glass fiber. An objective of the present invention is to provide the lower part crossmember for the vehicle, in which the number of parts and the number of steps can be reduced. 본 발명은 차량의 플로어에 배치되는 차량의 하부 크로스멤버로서 코어멤버와 보강레이어를 포함하며, 코어멤버는 일방향탄소섬유를 적어도 70wt% 이상 포함하는 복합재로 형성되며, 보강레이어는 유리섬유를 적어도 70wt% 이상 포함하는 복합재로 형성되는 차량의 하부 크로스멤버가 소개된다.