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.
Hyundai Motor Company, Kia Motors and Sung Woo Hitech Co. | Date: 2015-11-16
A method of manufacturing a bumper back beam for vehicles is provided. The method includes shaping a planar strip using a pressing process and a planar surface component are formed within a central portion of the strip in a longitudinal direction thereof, and recessed components are formed on opposite sides of the planar surface part, and a first flange is formed on an exterior edge of each recessed component. Further, each of the recessed components are bent vertically around a bending boundary line formed between the planar surface component and the corresponding recessed component and the opposite first flanges contact the planar surface component. Additionally, the edges of the opposite first flanges are welded to the planar surface component and the back beam has a pair of closed section components defined by the planar surface component and the recessed components.
Sungwoo Hitech Co. | Date: 2014-12-30
A frame for a self-piercing rivet system that can provide bearing capacity for joining a rivet to a plate by using an anvil die and a punch unit is disclosed. An exemplary embodiment of the present invention provides a frame for a self-piercing rivet system provided with a punch unit on an upper portion thereof and an anvil unit on a lower portion thereof corresponding to the punch unit, that may include: an outer frame portion formed by connecting an inner semicircular body and an outer semicircular body which has a different radius and a central position from the inner semicircular body by a plurality of ribs; an inner frame portion formed by connecting both ends of a bending body to both ends of the inner semicircular body at the inside of the outer frame portion; an upper inner extender extended from an upper end of the inner frame portion; an upper outer extender extended from an upper end of the outer frame portion; a lower inner extender extended from a lower end of the inner frame portion; a lower outer extender extended from a lower end of the outer frame portion; a punch mounting end integrally formed at a front end of the upper inner extender and the upper outer extender; and an anvil mounting end integrally formed at a front end of the lower inner extender and the lower outer extender.
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.
Sungwoo Hitech Co. and Pukyong National University | Date: 2014-09-02
A shear bonding device and a shear bonding method of metal plates are disclosed. The shear bonding device may include: an upper shear bonding mold having more than one upper perpendicular tooth and more than one upper slanted tooth formed alternately on a front end surface thereof; a lower shear bonding mold overlapped with the upper shear bonding mold in a vertical direction by a predetermined width below the upper shear bonding mold, and having more than one lower perpendicular tooth corresponding to the more than one upper slanted tooth and the more than one upper perpendicular tooth corresponding to the more than one lower slanted tooth formed alternately on a front end surface confronting the upper shear bonding mold; an upper heating clamper including a front end surface contacting with the upper perpendicular tooth of the upper shear bonding mold and adapted to generate heat by receiving power from a power supply; a lower heating clamper including a front end surface contacting with the lower perpendicular tooth of the lower shear bonding mold and adapted to generate heat by receiving power from the power supply; upper and lower pressing cylinders moving the upper and lower shear bonding molds upwardly or downwardly so as to apply load; and upper and lower clamping cylinders moving the upper and lower heating clampers upwardly or downwardly so as to apply clamping force and load, wherein the metal plates are disposed between the upper shear bonding mold and heating clamper, and the lower shear bonding mold and heating clamper.
Sungwoo Hitech Co. | Date: 2014-12-29
A sheet roll forming method is disclosed. The sheet roll forming method includes an uncoiling step for uncoiling a coil by an uncoiler provided at a start of a process line, a straightening step for straightening the coil from the uncoiler to be a flat panel, a piercing step for forming holes for various purposes in the panel fed from the straightening step by a piercing press, a sheet roll forming step for cutting the panel to be a sheet with a predetermined dimension by a running cutter and for successively bending the cut sheet to be a shaped beam by a multi-stage roll forming unit, and a bending step for curvature forming the shaped beam to be a shaped product by a round bender.
Sungwoo Hitech Co. | Date: 2015-10-28
A vibration spot welding device according to an exemplary embodiment of the present invention may include a first welding tip that is disposed to contact one side surface of metal plates that are overlapped, and a second welding tip that is disposed to contact the other side surface of the metal plates corresponding to the first welding tip, wherein the second welding tip includes a first electrode portion that is disposed to contact the metal plate so as to transmit a current thereto, and a second electrode portion that is disposed to contact the metal plate so as to receive the current that is transferred from the first electrode portion through the metal plate.
Sungwoo Hitech Co. | Date: 2015-11-11
The present invention relates to a joining method, and more specifically relates to a method for joining different kinds of plates that joins at least two plate members of which materials thereof are different from each other through laser welding. For this, a method for joining different kinds of plates according to an exemplary embodiment of the present invention may include disposing a first plate and a second plate, materials of which are different from each other, such that they are overlapped with each other, and joining the first plate and the second plate by irradiating a laser beam at a predetermined inclination angle and in a regular pattern onto the overlapped portion of the two plates.
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.
Sungwoo Hitech Co. | Date: 2015-07-30
A mounting unit of a shock absorber for a vehicle is disclosed. A mounting unit of a shock absorber for a vehicle that fixes an upper portion of a shock absorber connected to wheels to a vehicle body according to an exemplary embodiment of the present invention may include a shock absorber housing mounted to the vehicle body; a mounting module disposed in the shock absorber housing, and at least two mounting hole is formed at the mounting module; a tapping nut engaged through a mounting hole of the mounting module in the shock absorber housing; and a fixing nut engaged to an end portion of the tapping nut protruded to outside of the shock absorber housing and fixing the mounting module to the shock absorber housing; the mounting module and fixing nut are temporarily assembled to the shock absorber housing through a temporarily assembly apparatus and engaged to the tapping nut.