Ms Autotech Co., Ltd.

Myungshin Industry Co., Ltd.

Dae Ho Yang

Hyun Woo Lee

Jang Soo Kim

Woo Young Kim

Hong Kyo Jin

Tae Kyu Lee

Young Sun Choi

Ju Hong Kim

Mun Seok Choi

Hong Seag Cha

Provided is a hot stamping die apparatus including sub-assemblies constructed by making a plurality of plates erect and sequentially overlapping the plurality of plates in a face-to-face manner. A first cooling channel extending along overlapping surfaces is provided by forming grooves corresponding to each other on overlapping surfaces of adjacent plates, A second cooling channel passing through the corresponding sub-assembly in the length direction is provided in at least one of the sub-assemblies.

Hot stamping die apparatus

Provided is an apparatus for forming steel workpieces using electroplasticity. The apparatus includes a power supply () for supplying electricity to the workpiece (W) through electrodes () disposed in a mold () of a press () during a deformation stroke of the press (), a control unit () for controlling the power supply () and a plurality of sensors (and).

Apparatus for forming a steel workpiece

Provided is a bushing for manufacturing a three-dimensional composite preform using a tow made of a fiber reinforced polymer. The bushing includes a base plate in which one or more through-holes are formed, and a plurality of spools spaced apart from each other on the base plate. A flat top is formed at an end portion of the spools, and grooves are formed on outer surfaces of the plurality of spools in a circumferential direction thereof.

Bushing for manufacturing structural composite preform

Growing community of inventors

Suwon-si, South Korea

Dae Ho Yang