Posco

Daewoo Electronics Co., Ltd.

Posco Co., Ltd

Austem Co., Ltd.

Hong-Woo Lee

Jae-Hyun Kim

Dong-Yoon Seok

Yeon-Sik Kang

Hyoun-Young Lee

Jaehyun Kim

Jae-Soo Kim

Nam-Sik Sa

Myong-Ho Shin

The present invention relates to a side sill of a vehicle, the side sill being structurally more robust while having reduced costs and weight. The side sill of a vehicle according to an embodiment comprises: a side sill internal panel; a side sill external panel which is spaced apart from the side sill internal panel; a side sill external reinforcement coupled to the side sill external panel; a partition member arranged between the side sill internal panel and the side sill external reinforcement; a first reinforcing member arranged between the partition member and the side sill internal panel; and a second reinforcing member arranged between the partition member and the side sill external reinforcement.

Side sill for vehicle

The present invention provides a method for manufacturing a torsion beam, the method comprising: a planarization step, in which a protruding portion of an upper mold presses the opposite end portions in the width direction of the blank to be plastically deformed to be flat while the opposite end portions in the width direction of the blank are supported by a side cam to face each other; a welding and bonding step for bonding the planarized opposite end portions in the width direction of the blank via welding; and a quenching step for heating the welded and bonded blank within a range of 900 to 970° C. for a retaining time within a range of 1 to 20 minutes and for cooling down the blank in a treatment liquid including at least one of water and oil in a range of 20 to 90° C.

Method for manufacturing torsion beam

The present invention relates to a seat frame with reduced weight due to not including a cushion side frame, the seat frame comprising: a pair of rails; a cushion frame which supports a cushion and has a closed cross-sectional shape; front links which connect the rails to the cushion frame on the front side; rear links which connect the rails to the cushion frame on the rear side; and connection brackets which connect the rear links to a seatback frame.

Seat frame

A multi physical properties part used in automotive components required to be lightweight and provide collision safety, and a method of manufacturing a multi physical properties part, in which the multi physical properties part may be more economically and simply manufactured by using two or more separated die sets without using an additional heating device or treating a die surface. A method of manufacturing a multi physical properties part, which includes positioning a single heated formed article in two or more die sets, and then manufacturing a multi physical properties part including two or more regions having different physical properties by differing cooling conditions in the respective die set.

Method of manufacturing multi physical properties part

An underbody for an electric vehicle configured as an electric vehicle lower body includes a multiply divided battery mounting portion and an underbody portion. The multiply divided battery mounting portion enables multiply divided and selective mounting of batteries, and forms a portion of the underbody. The underbody portion is connected to the battery mounting portion and forms another portion of the underbody.

Underbody for electric vehicle

An apparatus for generating a microwave frequency energy includes a cathode for emitting electrons, a first grid for controlling and focusing the flow of electrons from the cathode, a choke structure for serving as a capacitor, wherein the cathode, the first grid and the choke structure define an input cavity functioning as a resonant circuit. The apparatus further includes a trimming resistor, one end of which is connected to the first grid and the other end thereof is connected the cathode, for inducing a bias voltage on the first grid, a second grid provided above the first grid and having a plurality of slots through which the electron beams passing through the slots of the first grid pass, an anode for receiving the electrons passing through the slots of the second grid, a driving voltage source for providing a driving voltage to the cathode and the anode, an antenna for extracting the microwave from an output cavity, the output cavity being defined by the second grid and the anode , and a feedback structure extending from the input cavity to the output cavity, for feeding a portion of the microwave frequency energy back to the input cavity.

Growing community of inventors

Incheon, South Korea

Hong-Woo Lee