公开(公告)号：US20200164926A1

公开(公告)日：2020-05-28

申请号：US16212562

申请日：2018-12-06

Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY

Inventor： Hyun Rok CHA ,  Myeong Hwan HWANG ,  Jong Ho HAN ,  Dong Hyun KIM ,  Gil Woo CHOI ,  Se Hyeon YANG ,  Gye Seong LEE ,  Hae Sol LEE

IPC: B62D27/02

Abstract: A joint member for coupling a chassis frame according to the present invention, which couples frames composing a chassis, includes a block-shaped main body and a first insertion groove into which one end portion of a first frame, which is a frame extending in a width direction of the chassis, is inserted and which is formed on one surface of the main body, and the plurality of first insertion grooves are formed in a longitudinal direction of the chassis so that a length of the chassis is changed according to a position at which the first frame is inserted.

公开(公告)号：US20210398745A1

公开(公告)日：2021-12-23

申请号：US17292280

申请日：2019-11-25

Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY

Inventor： Hyun Rok CHA ,  Myeong Hwan HWANG ,  Jong Ho HAN ,  Dong Hyun KIM ,  Gye Seong LEE

IPC: H01F41/02 ,  H01F1/12 ,  B22F3/03 ,  B22F3/093

Abstract: The present invention relates to an apparatus and a method for manufacturing a soft magnetic composite using ultrasonic vibration and a soft magnetic composite manufactured using the ultrasonic vibration. More specifically, the present invention relates to the apparatus for manufacturing a soft magnetic composite using ultrasonic vibration including: a die that has a putting-in space as an open space in which a powder material is put; a punch set that is inserted into the putting-in space and presses the powder material; an ultrasonic vibration applying unit including ultrasonic vibrators which are arranged along a circumference of an outer die surface of the die and are provided to come into contact with the die; a main body that is positioned below the die and is formed to slide around the die toward an outer circumference; and a control unit that controls a frequency of the ultrasonic vibrators depending on a degree of pressure of the punch set, a method for manufacturing a soft magnetic composite using ultrasonic vibration, and a soft magnetic composite manufactured using the same.