MANUFACTURING METHOD OF LIFE BOAT AND LIFE BOAT MANUFACTURED BY THE SAEM

摘要

According to the present invention, a manufacturing method of a life boat comprises: (a) step of cutting a manufacturing material having an upper body, a lower body, and a floor member; (b) step of bonding a portion of the whole length of a first bonding portion formed in a longitudinal direction of the upper body and a second bonding portion formed in a longitudinal direction of the lower body; (c) step of forming an upper space by rolling and bonding the upper body to an internal side and forming a lower space by rolling and bonding the lower body to an internal side; (d) step of bonding the other portion of the first bonding portion and the second bonding portion, and individually bonding a gap between one side and the other side of the upper body and a gap between one side and the other side of the lower body; and (e) step of bonding the floor member to the lower body.