Patent application number | Description | Published |
20120037466 | BRAKE DRUM AND METHOD FOR MANUFACTURING THE SAME - A method of manufacturing a brake drum for a vehicle is provided, which comprises: bonding at a temperature of 500° C. or higher a braking surface of a brake drum which is made of a gray cast iron material with a housing which is to accommodate the braking surface and is made of an aluminum alloy material; and removing residual stress that remains in the gray cast iron material by heating the braking surface at a temperature of about 600° C. The brake drum can improve fuel efficiency of a vehicle and drive comfort while having excellent braking performances. | 02-16-2012 |
20130037359 | BRAKE DISC USING TWO DIFFERENT MATERIALS AND METHOD OF PRODUCING THE SAME - A brake disc is disclosed which includes a friction unit having a coupling aperture formed at a center thereof, insert protrusions and depressions which are provided in a sawtooth formation at predetermined intervals along a circumference of the coupling aperture, wherein chamfers are formed at a predetermined angle on one or more of the upper and lower surfaces of the insert protrusions, and first locking parts locked into upper or lower spaces of the depressions. A hat unit, formed of a material different from that of the friction unit, coupled to the coupling aperture of the friction unit, and including insert recesses formed along a circumference thereof so that the insert protrusions are fitted therein, and second locking parts formed at predetermined intervals in the insert recesses so that they are inserted into the depressions and engage with the first locking parts, and to a method of producing the same. | 02-14-2013 |
20130043099 | BRAKE DISC USING DIFFERENT MATERIALS - A brake is disclosed which includes a disc plate is made of a first material, and an insert aperture is formed through the central portion of the disc plate. Coupling depressions are formed around the inner edge of the insert aperture, and a rivet aperture is formed in each of protrusion portions provided between the coupling depressions. A hat part is made of a second material and is inserted into the insert aperture. Coupling protrusions are provided around the outer edge of the hat part. A rivet aperture is formed in each of the coupling protrusions. Straps are disposed such that each strap passes over both the corresponding rivet aperture of the disc plate and the corresponding rivet aperture of the hat part. The rivets are inserted into the corresponding straps and the corresponding rivet apertures to fix the straps, the disc plate and the hat part together. | 02-21-2013 |
20130075208 | UNI-BODY TYPE HETEROGENEOUS MATERIAL BRAKE DISK AND MANUFACTURING METHOD THEREOF - Disclosed is a uni-body type heterogeneous material brake disk. In particular, the brake disk includes a friction part configured to be selectively in contact with a pad; and a hub joined with a bearing. More specifically, the friction part and the hub are made of heterogeneous materials through a uni-body type mold. To accomplish this, a connector connecting the friction part and the hub which are vertically spaced apart from each other is laterally spaced apart from the hub, and a bottom of the connector is connected with the hub. In doing so, an elevated platform is formed to prevent a casting from running over between the connector and the hub and an interface made of heterogeneous materials is formed in the connector. | 03-28-2013 |
20130140116 | METHOD FOR PRODUCING BRAKE DISC, MOLD FOR PRODUCING BRAKE DISC, AND BRAKE DISC - A method for producing a brake disc comprising a coupling part having a centered through-hole a friction part on the periphery of the coupling part, and a wall part connecting the coupling part and the friction part, including: producing a mold in which the coupling part, the wall part, and the friction part are integrally formed, wherein a gap prevents molten metal from overflowing between the wall part and the coupling part, interface is formed on the periphery of the coupling part, an overflow is provided outside the wall part opposite the gap; a first injection process of injecting a first material to form the friction part; and a second injection process of injecting a second material to form the coupling part, a mold for producing the brake disc, and the brake disc. | 06-06-2013 |
20130146405 | BRAKE DISK - Disclosed herein is a brake disk. More specifically, the brake disk includes a friction part, a hat part and a plurality of fasteners. The friction part includes a coupling aperture formed at a center thereof, a coupling portion formed along an inner side of the coupling aperture to have a predetermined thickness and a plurality of connecting bores formed in the coupling portion so that the connecting bores are spaced apart from each other and located along a circumference of the coupling portion. The hat part is inserted into the coupling aperture of the friction part and includes a coupling flange corresponding to the coupling portion of the friction part. The coupling flange includes a plurality of connecting bores that correspond to the plurality of connecting apertures. The plurality of fasteners are each horizontally inserted into the connecting apertures and bores to couple the friction part with the hat part. | 06-13-2013 |
Patent application number | Description | Published |
20130284318 | PLASMA NITRIDING SURFACE TREATMENT METHOD FOR GRAY CAST IRON PART - Disclosed is a plasma nitriding surface treatment method for a gray cast iron part. In the plasma nitriding surface treatment method, a nitride layer is formed on a surface of the gray cast iron part by a selective ion nitriding treatment. The plasma nitriding surface treatment method is carried out such that the surface of the gray cast iron part is prevented from being deformed, and a reduction of the frictional coefficient of the part is prevented. | 10-31-2013 |
20140041974 | BRAKE DISK - Disclosed is a brake disk. The brake disk includes a friction part having a coupling aperture within a center thereof and a plurality of recessed portions repeatedly formed at a predetermined interval along an inner circumference of the coupling aperture, in which bevels protrude from inner surfaces of the recessed portions, respectively. The bevels are tapered along upper and lower sides thereof toward protruding centers. The brake disk also includes a hub having a plurality of protrusions inserted into and attached to the recessed portions when coupled to and received in the coupling aperture of the friction part via a cast-bonding method, along a circumference thereof. | 02-13-2014 |
20140124308 | BRAKE DISK FOR VEHICLE - Disclosed herein is a brake disk for a vehicle, including: a hat mounted on a shaft of a wheel and including a plurality of mounting apertures formed in a radial direction along a circumferential lip of the hat; a braking band having a shape enclosing an outer portion of the hat and including a plurality of sliding bores formed in the radial direction at positions corresponding to the plurality of mounting apertures along the circumferential lip of the hat; and a plurality of sliding pins each having one end portion mounted in the mounting aperture and the other end portion fitted into the sliding bore and to slide within the sliding bore in the radial direction. | 05-08-2014 |
20140124309 | BRAKE DISK FOR VEHICLE - Disclosed herein is a brake disk for a vehicle including: a hat including a recessed portions radially extending around an outer circumference surface of the hat; a braking band including a friction face along an outer circumference surface of the braking band and a mounting aperture formed along the inner circumference of the friction face at a position corresponding to the recessed portions; a floating bush including one end mounted on the mounting aperture and the other end fitted in the recessed portions to move in the recessed portions; and a tensioner including a middle portion fixed to the floating bush by a fixing member and both ends supported to one side of the hat under axial tension. | 05-08-2014 |
20150136546 | BRAKE DISC COMPRISING HETEROGENEOUS MATERIALS AND METHOD FOR MANUFACTURING THE SAME - Disclosed is a brake disc manufactured from heterogeneous materials and a method for manufacturing the brake disc. The brake disc includes a friction part in which a connection hole is formed in a center, protrusions and recesses are alternately repeated along a circumference of the connection hole, the recess has a shape curved in an opposite direction of the connection hole. The brake disc also includes a hat part that is made of material different from that of the friction part, and has insertion grooves formed along an outer circumference so as to allow the protrusions to be inserted. Particularly, heat radiation holes are formed along the circumference of the connection hole at predetermined distance by connecting insertion parts of the protrusions to the insertion grooves of the hat part with a predetermined gap from an inner surface of the friction part. Also provided is a brake disc manufactured from heterogeneous materials having excellent durability. | 05-21-2015 |
20150184712 | BRAKE DISC MANUFACTURED FROM HETEROGENEOUS MATERIALS AND METHOD OF MANUFACTURING THE SAME - Disclosed are a brake disc manufactured from heterogeneous materials and a method of manufacturing the brake disc. In particular, the brake disc manufactured from heterogeneous materials, in which the number of bridges may be optimized to improve castability and relieve stress, thereby eliminating occurrence of a crack and the like which may be generated due to a difference in a thermal expansion coefficient between a friction part and a hat part. | 07-02-2015 |
20150231695 | BRAKE CALIPER HOUSING HAVING DIFFERENT STRENGTH AND METHOD FOR MANUFACTURING THE SAME - Disclosed are a brake caliper housing and a method for manufacturing the same. The method for manufacturing the brake caliper housing includes: injecting a melt into a mold comprising a cavity of at least one or more of brake caliper housings; cooling the molded brake caliper housing having symmetric physical properties on a left portion and a right portion. Particularly, a cooling rate of the melt of a part in which a chiller is installed during cooling may increase to selectively improve strength by installing the chiller on the outer surface of the cavity. Accordingly, the bilateral symmetric microstructure on the left portion and the right portion may be obtained and deviations in physical properties between the left and the right portions of the manufactured brake caliper housing may be within about 5% and a pearlite fraction in the contact may increase, thereby improving the NVH performance. | 08-20-2015 |