Sungwoo Hitech Co.

Busan, South Korea

Sungwoo Hitech Co.

Busan, South Korea
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Patent
Sungwoo Hitech Co. | Date: 2016-05-18

A multi-warm forming device and the forming method are disclosed. A multi-warm forming device according to one or a plurality of exemplary embodiments of the present invention may include: a lower mold die that is disposed on a bolster for a process and in which a mold mounting portion having at least one space portion is formed at a center thereof; a lower mold that is disposed at an upper surface of a mold mounting portion of the lower mold die, in which a plurality of gas supply passages formed therein in a vertical direction are connected to a gas supply device of an outside through a gas supply line, and a lower forming surface is formed at an upper surface thereof; an upper mold that is mounted on a slider of an upper portion to be able to be moved up and down corresponding to the lower mold at an upper portion of the lower mold die, in which an upper forming surface is formed at a lower surface corresponding to the lower mold, an upper mold face surface is formed at a circumference of the upper forming surface, and a plurality of heating cartridges are mounted inside along the upper forming surface and the upper mold face surface; and a blank holder of which the mold mounting portion is inserted into a penetration hole that is formed corresponding to the mold mounting portion, is able to be moved in a vertical direction by a guide post and a cushion spring that are mounted within the lower mold die, and in which a plurality of heating cartridges are mounted along a holder face surface that restrains a material together with the upper mold face surface at an early stage of a forming process.


Patent
Hyundai Motor Company, Kia Motors and Sungwoo Hitech Co. | Date: 2016-08-26

A manufacturing method for a bumper beam of a vehicle may include pipe making, producing a circular pipe by pipe molding a steel plate having a predetermined thickness between first and second molding rolls, heating the circular pipe to a set temperature in a heating furnace, pressurizing and molding the circular pipe heated in the heating furnace and having flexibility, while inserting the circular pipe between an upper mold and a lower mold to form a molding beam, and thereafter, rapidly cooling the molding beam to form the molding beam into a high-strength molding beam, and curvature-molding the high-strength molding beam at a predetermined curvature through a curvature molding machine.


Patent
Sungwoo Hitech Co. | Date: 2016-04-18

A roll forming device for forming a variable thickness plate is disclosed. A roll forming device for forming a variable thickness plate according to one or a plurality of exemplary embodiments may include both-side stand frames that are disposed at a left side and a right side on a process base at a predetermined distance from each other and in which a sliding groove is formed at a center portion in an up and down direction, a lower forming roll unit in which a lower forming roll is fixed on a lower rotation shaft such that both end portions are rotatably disposed on a lower sliding block that is fixed to a lower portion of each sliding groove on the both-side stand frames, an upper forming roll unit in which an upper forming roll is fixed on an upper rotation shaft such that both end portions are rotatably disposed at an upper sliding block that is disposed on each sliding groove of the both-side stand frames to be slidably moved in an up and down direction at an upper portion of the lower forming roll unit, a forming roll gap adjustment unit that adjusts an initial gap between the lower forming roll and the upper forming roll, wherein a worm wheel and a worm gear are operated in an adjustment block of each upper portion of the both-side stand frames and an adjustment screw that is screw-engaged to a center of the worm wheel in an up and down direction adjusts an up-down direction position of the both-side upper sliding blocks, and a spring unit that is disposed between the adjustment screw and the upper sliding block within each sliding groove of the both-side stand frames, absorbs a forming reaction force that is applied to the upper forming roll according to a thickness variation of a plate that is to be formed, and simultaneously maintains a forming pressure of the upper forming roll within a predetermined range.


Patent
Sungwoo Hitech Co. | Date: 2016-05-17

A multi-forming method is disclosed. A multi-forming method according to an exemplary embodiment of the present invention may include a first material supply step in which a sheet having super-plasticity is loaded on a lower mold that is disposed on a lower mold die of a warm-forming mold and on a blank holder that is disposed on the lower mold die through a cushion spring corresponding to a circumference of the lower mold, a material warm-heating step in which an upper mold operated by a slider at an upper portion of a lower mold of the warm-forming mold is lowered to grasp an edge of the sheet together with the blank holder, and the sheet is heated to a warm-forming temperature by a heating cartridge disposed in the upper mold, the lower mold, and a blank holder of the warm-forming mold, a warm-forming step in which a slider of the warm-forming mold is operated, the upper mold is combined with the lower mold and plastic-deforms the sheet to a maximum deformation depth of a product along a lower mold surface of a lower mold in the warm-forming temperature, a material super-plasticity heating step in which the sheet, which is warm-deformed to a maximum forming depth of a product, is unloaded from the warm-forming mold, and the sheet is heated to a super-plasticity temperature in a heating device, a secondary material supply step in which the sheet heated to a super-plasticity temperature on the lower mold that is disposed on the lower mold die of a blow-forming mold and on a blank holder that is disposed on the lower mold die is loaded through a cushion spring corresponding to circumference of the lower mold, a blow-sealing step in which an upper mold operated by a slider is combined with a lower mold of the blow-forming mold at a predetermined pressure, the upper mold grasps an edge of the sheet together with the blank holder, and a sealing bead formed along an edge circumference of the lower mold of the blow-forming mold and contacts the sheet disposed between the upper mold and the lower mold so as to prevent leakage of the blowing gas used in blow-deforming of the sheet, a blow-forming step in which blowing gas is supplied into a gap between the lower mold and the sheet through a gas passage that is formed in the lower mold of the blow-forming mold such that the sheet is deformed to a final shape of a product along an upper mold surface of the upper mold, and a product unloading step in which the upper mold is separated from the lower mold to unload a final product, after blow-forming the sheet to a final shape of a product in the blow-forming mold.


Patent
SUNGWOO HITECH Co. | Date: 2016-05-17

A multi-forming device is disclosed. A multi-forming device according to an exemplary embodiment of the present invention may include: a lower mold die; a lower mold that is disposed at a center upper surface of the lower mold die, in which a gas passage is formed in an up-and-down direction to receive a shaping gas from an outside gas supplier device, in which a lower mold surface is formed at an upper surface thereof, and in which a plurality of heating cartridges are disposed therein along the lower surface thereof; an upper mold that is disposed on an upper side slider to be moved in an up-and-down direction corresponding to the lower mold, in which an upper mold surface is formed at a lower surface corresponding to the lower mold, in which an upper mold face is formed at a circumference of the upper mold surface, and in which a plurality of heating cartridges are disposed along the upper mold surface; a blank holder through which the lower mold is inserted and that is disposed to move in an up-and-down direction through a cushion spring on the lower mold die, and in which a holder face is formed to grasp a material together with the upper mold face at an early stage of a forming process; an inner gas pipe that is disposed in a gas passage of the lower mold; and a switch valve that switches supply passages of the shaping gas that is supplied to the inner gas pipe and the gas passage.


Patent
Sungwoo Hitech Co. | Date: 2016-06-17

A mounting bolt for a sub-frame is disclosed. A mounting bolt for a sub-frame that is used to engage a sub-frame to a front side member of a vehicle according to one or a plurality of exemplary embodiments of the present invention may include a bolt body that is inserted into a penetration hole of a mounting bracket fixed on the front side member and is joined to the mounting bracket through a first flange that is formed at an upper end circumference thereof, a support body at which a second flange is formed at a lower end circumference to have a hollow space and is disposed on the bolt body, and a joining plate that is interposed between the first flange and the second flange and is welded with a first join protrusion that is formed on an upper surface of the first flange and a second join protrusion that is formed on a lower surface of the second flange by electrical resistance.


Patent
Sungwoo Hitech Co. | Date: 2016-06-17

An impact detecting sensor assembly for an active hood system is disclosed. An impact detecting sensor assembly for an active hood system that is disposed at a front bumper of a vehicle, detects an impact force when a vehicle collides with a pedestrian, and controls the active hood system depending on the detection signal according to an exemplary embodiment of the present invention may include i) a flexible holder of a tube shape that is fixed on a front surface of a bumper beam of the front bumper in a vehicle width direction, and ii) a pair of electrode plates that are disposed in the flexible holder at a predetermined interval to face each other.


Patent
Sungwoo Hitech Co. | Date: 2016-05-17

An air bag sensor assembly for a vehicle is disclosed. An air bag sensor assembly that detects a crash impact of a vehicle so as to control an air bag module in accordance with a detected signal according to an exemplary embodiment of the present invention may include a holder that is screw-engaged with a sensor mounting portion of a vehicle body structure having a closed section, and a sensor module that includes a touch sensor that is disposed in the closed section of the vehicle body to be spaced from a transformation part thereof, and is fixed to the holder.


Patent
Sungwoo Hitech Co. | Date: 2016-04-18

A rivet screw drill for fastening at least two panels, the rivet screw drill includes a head portion mounted to a fastening tool, a fastening portion integrally formed with the head portion and of which a screw thread is formed thereto and a perforating portion integrally formed with the fastening portion and pressurizing and penetrating the panels by rotation according to operation of the fastening tool, wherein a mounting protrusion, connected to the fastening tool, is protruded from the head portion and a plurality of support ends are formed to the mounting protrusion.


Patent
Sungwoo Hitech Co. | Date: 2016-04-19

A mounting bolt for a sub-frame is disclosed. A mounting bolt for a sub-frame that is configured to a sub-frame to a front side member of a vehicle according to one or a plurality of exemplary embodiments of the present invention may include a bolt body that is inserted into a through-hole of a mounting bracket that is fixed to the front side member and joined to the mounting bracket through a head portion, and a support body that has a cylindrical shape, is friction-welded to a center of an upper surface of a head portion of the bolt body along one line, and of which an upper end is joined to the front side member.

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