The invention relates to a continuous extrusion machining device used for a magnesium alloy sheet strip with a weak basal texture and an extrusion machining method. The device comprises an extrusion system mainly composed of a pressure motor, an extrusion telescopic head, a male die and a female die, and multiple inclined steps gradually getting close to the axis of a die cavity are arranged at the two sides below the upper middle portion in the die cavity of the female die and are distributed asymmetrically. In the extrusion machining process, a magnesium alloy blank is placed in the die cavity of the female die and extruded by the descending male die, and as the male die descends continuously, the magnesium alloy blank is gradually thinned to form a magnesium alloy sheet with the weak basal texture. Due to step-by-step grain refinement and basal texture weakening, extrusion force in the extrusion process is greatly reduced, the average grain size of the magnesium alloy is greatly reduced compared with that of a magnesium alloy extruded normally, and the (0002) basal texture is reduced to 8.2 from 27.6 compared with that of a sheet obtained through normal extrusion.

Continuous extrusion machining device used for magnesium alloy sheet strip with weak basal texture and extrusion machining method

The invention discloses a rotary extrusion die of a homogenous high-toughness magnesium alloy cup-shaped component. The rotary extrusion die of the homogenous high-toughness magnesium alloy cup-shaped component comprises a punch, a forming concave mold, a lower cushion plate, a lower template and an ejection rod for a rotary extrusion cup-shaped component; the punch is connected with an upper rotary workbench of a hydraulic machine with the upper rotary workbench and is an 'I'-shaped rotating member; the end part of the punch, which is in contact with an extrusion billet, is a conical body; the surface of the conical body is provided with non-communicated grooves with certain widths and depths; the round region at the central part of the surface of the conical body is provided with an open slot; a 'crossed' groove is formed in a bottom plane of a mold cavity of the forming concave mold; a through hole is formed in the middle of the bottom plane of the mold cavity; the forming concave mold and the lower cushion plate are fixed on the lower template from top to bottom to form a whole; the forming concave mold is connected with the lower cushion plate and the lower template; the middle parts of the lower cushion plate and the lower template are provided with an ejection rod through hole which is communicated with the through hole in the bottom of the mold cavity; the ejection rod is arranged in the ejector rod through hole and enters the mold cavity from the through hole or withdraws into the through hole from the mold cavity in a telescopic mode back and forth.

Rotary extrusion method of homogenous high-toughness magnesium alloy cup-shaped component

A pedal apparatus for a vehicle includes: a pedal arm mounted on a vehicle body by a hinge shaft and having one end connected with a pedal and the other end where a rack gear is formed; a link arm having a pinion gear at one end that meshes with the rack gear to pivot on a center shaft of the pinion gear with respect to the pedal arm, and having the other end where a locking pin is formed; and a plate mounted on the vehicle body, the plate having a sliding groove where the locking pin of the link arm is inserted, in which ridges and depressions are formed at regular intervals in the sliding groove so that the locking pin slides step by step while being locked to the ridges and depressions.

Pedal apparatus for vehicle

Disclosed herein is a frame assembly for a display panel The frame assembly includes a display panel, a rear cover, a housing and an assembling means The housing includes a plurality of frames which enclose the display panel and the rear cover Each frame has a sidewall, and a connection member which connects the frames to each other The assembling means is installed in the housing to provide a closed structure and is provided to ensure coupling force among the display panel, the rear cover and the housing The assembling means includes a fastening bracket which presses the display panel onto the frames of the housing and fastens the display panel to the frames, a support bracket which supports the rear cover, and an auxiliary bracket which assists connection between the adjacent frames

Frame assembly for display panel

[Problem] To provide a vehicle suspension arm which can be produced at a low cost and in which the shape of each constituent component can be simplified and the size and weight of the constituent components can be logically reduced. [Solution] When forming the lower arm (2) of a vehicle suspension, an arm main body (10) is configured from a pair of opposing side plates (11), a bottom plate (12) integrally formed with both side plates (11) so as to connect same, and a spring receiving seat member (13) attached to the side plates (11), wherein both side plates (11) are disposed so as to extend within the bottom region (R) of the spring receiving seat member (13).

Vehicle suspension arm

The present invention relates to an extruding device for magnesium alloy capable of forming an extrusion product of a hollow type by targeting a magnesium alloy material, and extruding to prevent the degradation of mechanical properties and the surface oxidation of a product. According to the present invention, the extruding device for magnesium alloy for forming a billet as a hollow type product having a desired shaped hollow part by pressing a magnesium alloy billet in an extrusion direction comprises a flow guide having multiple port holes for dividing the pressured billet while the pressured billet is passing; and a die including a mandrel and a chamber for converging and forming the billet passing through the port hole as a product having a hollow part, and a bearing which is a path for forming the billet as a final product while the billet extruded by covering the mandrel is passing through. In the die, a cooling flow path is formed in a radial shape to spray nitrogen cooling gas toward the outlet of the bearing in which the billet is formed as a final product and coming out.

Extruding equipment for magnesium alloy

A partially welded window frame, and a manufacturing method thereof are provided to remove an assembly process of sub frame members and to increase productivity of the frame by combining indoor and outdoor sub frame members through bar shaped connecting members A partially welded window frame comprises a metal outdoor sub frame(21), a synthetic resin made indoor sub frame(22), and a plurality of bar shaped connecting members(23) The outdoor sub frame is closely attached with bar shaped outdoor sub frame members(21A) The indoor sub frame is bonded with bar shaped indoor sub frame members(22A) by welding The two ends of the connecting members are combined with opposed surfaces of the indoor and outdoor sub frame members The contacted parts of the connecting members are welded The metal is aluminum alloy, and the synthetic resin is PVC

The partially welded window frame, and the manufacturing method of the same

High strength aluminum alloy having good moldability is provided to decrease pressure in an extrusion process compared with addition of Mg and to improve a mechanical property High strength aluminum alloy having good moldability comprises the followings: 095~105wt% of silicon, 05~06wt% of magnesium, 05~06wt% of manganese, 02wt% and below of copper, 013~018wt% of chromium, 003wt% and below of titanium, 005wt% and below of zinc, 002wt% and below of inevitable components; and the remnant of aluminum

High strength al-alloy with good formability

A reinforcing frame for a display panel using Al-alloy extrusion material and a manufacturing method thereof are provided to minimize loss of raw material abandoned during press processing of reinforcing frame manufacturing processes by using the Al-alloy extrusion material, thereby reducing costs and achieving light weight of the display panel. A reinforcing frame(2) for a display panel using Al-alloy extrusion material comprises a couple of bar type long frame members(21) and a couple of bar type short frame members(22). The long frame members are the Al-alloy extrusion material, and parallel to each other. The short frame members the Al-alloy extrusion material. Both ends of the short frame members are closely contacted with both ends of the same side of the two long frame members in a square frame shape, and coupled through rotation friction welding. The short frame members are parallel to each other.

Park Sang Woo

Papers

Extruding equipment for magnesium alloy

The partially welded window frame, and the manufacturing method of the same

High strength al-alloy with good formability

Al-alloy frame for reinforcing lcd panel and pdp of tv and monitor made of al alloy extrusion bars, and the fabricating method of the same

The method of gas nitriding and oxinitrocarburizing at low temperature and low pressure for ferrous alloys