KR19980028301A - Forging Machine For Aluminum Wheel Manufacturing - Google Patents

Abstract

The present invention is a molten metal forging machine for manufacturing an aluminum wheel by filling the mold with molten aluminum and solidifying it.

The molten metal forging machine for producing aluminum wheels of the present invention includes an aluminum wheel mold 1, a cylinder 4 through which a discharge port communicates with the mold 1, a piston 5 for pressing the cylinder 4, and the cylinder ( 4) an aluminum melting furnace 7 in communication with the interior, and a pump (not shown) for pumping molten aluminum of the melting furnace 7 into the cylinder 4 between the cylinder 4 and the melting furnace 7; By filling the molten aluminum pumped into the cylinder (4) by the pump in the mold (1) by the piston (5), by cooling the mold (1) in the molten aluminum filled state, mechanical properties Not only is this excellent, it is also possible to manufacture lightweight aluminum wheels.

Description

Forging Machine For Aluminum Wheel Manufacturing

The present invention is an aluminum forging machine for producing aluminum wheels, and more specifically, an aluminum wheel forging machine for manufacturing an aluminum wheel by filling an aluminum molten metal in a mold and solidifying it.

The tire of an automobile is maintained by a disc wheel composed of an annular metal rim and a metal plate attached to a hub. The tire is not fully functional until it is mounted on the disc wheel and then air is supplied. All the forces acting on the tire are transmitted to itself through the disc wheel. In recent years, the importance of disc wheels has been recognized, and wheels made of alloys of light metals such as aluminum and magnesium, which are lightweight and have high rigidity, have been used.

The present invention is a molten metal forging machine for manufacturing an aluminum wheel to produce an aluminum wheel of the aluminum material as a kind of the disk wheel as described above.

Meanwhile, conventionally, aluminum wheels have been manufactured by a low pressure casting method, and a low pressure casting machine for this purpose is illustrated in FIG.

As shown in the drawing, a conventional low pressure casting machine is formed by joining an upper mold 1a and a lower mold 1b to form a molten aluminum in a sealed chamber 2 with a mold 1 forming an inner space in an aluminum wheel shape. It is a device in communication with (3), pressurizing the chamber (2) to push molten aluminum into the mold (1), and to cool the mold (1) in this state to make the molten aluminum inside into an aluminum wheel. .

However, in the conventional low pressure casting machine as described above, since the molten metal is filled by the chamber pressure at the lower part of the mold and the cooling rate is slow, the structure of the finished metal is not dense. Therefore, in order to maintain the mechanical strength of the wheel, the weight must be increased inevitably, a problem has been raised against the trend of weight reduction of the automobile.

The present invention solves the problems of the conventional low pressure casting machine as described above, and by filling the molten aluminum in the mold at high speed and high pressure, the structure can be finely and densified to enhance the mechanical properties, thus contributing to the weight reduction of the automobile An object of the present invention is to provide a molten metal forging machine for producing an aluminum wheel that can produce a lightweight aluminum wheel.

1 is a cross-sectional view showing the structure of a conventional low pressure casting machine for producing aluminum.

Figure 2 is a cross-sectional view showing the structure of the forging machine for manufacturing aluminum wheels according to an embodiment of the present invention.

* Explanation of symbols for the main parts of the drawings

1: mold 4: cylinder

5: piston 6: support

7: melting furnace

The molten forging machine for manufacturing aluminum wheels of the present invention for achieving the above object includes an aluminum wheel mold, a cylinder in which a discharge port communicates with the mold, a piston for pressurizing the cylinder, an aluminum melting furnace in communication with the inside of the cylinder, and A pump for pumping molten aluminum in the melting furnace into the cylinder between the cylinder and the melting furnace, the molten aluminum pumped inside the cylinder by the pump is filled into the mold by the piston, and the molten aluminum is filled in the mold. Cooling to produce an aluminum wheel.

EXAMPLE

Hereinafter, a preferred embodiment of the present invention having the configuration as described above will be described in detail with reference to the accompanying drawings.

In the description of the present embodiment, the same reference numerals are used for the configurations of the present invention that are the same as the prior art described at the outset, and only the parts that are improved so as not to overlap with the prior art for clarity will be mainly described.

Figure 2 of the accompanying drawings is a cross-sectional view showing the structure of the forging machine for manufacturing aluminum wheels according to an embodiment of the present invention.

As shown, the molten metal forging machine for manufacturing the aluminum wheel of the present embodiment supports the lower part of the mold 1 composed of the upper mold 1a and the lower mold 1b, and has a discharge port communicated with the mold 1 therein. The support cylinder 6 on which the excitation cylinder 4 and the piston 5 pressurizing the cylinder 4 is installed, the melting furnace 7 in communication with the cylinder 4, and the molten aluminum of the melting furnace 7 And a pump (not shown) for pumping to the cylinder 4.

Aluminum manufacturing process by such a configuration is made as follows.

First, the melting furnace 7 is filled with molten aluminum, which is pumped into the cylinder 4 by an electro-pump not shown. When the molten aluminum is filled in the cylinder 4, the piston 5 is lifted to pressurize the inside of the cylinder 4, and the molten aluminum pressurized in the cylinder 4 is filled at high speed into the mold 1. The mold 1 continues to be cooled while the molten aluminum is filled with high pressure by the piston 5, and when this cooling continues, the molten aluminum in the mold 1 solidifies to form an aluminum wheel having a dense and refined metal structure. Becomes

Aluminum wheels fabricated in this way have much higher mechanical properties, e.g. elongation, tensile strength and fatigue strength than aluminum wheels produced by conventional low pressure casting machines. Therefore, in manufacturing the aluminum wheel of the same strength, it is possible to produce an aluminum wheel with a much smaller weight than the conventional low pressure casting machine using the molten forging machine for producing aluminum wheels according to the present embodiment.

According to the present invention as described in detail above, the structure is dense and fine, it is possible to produce an aluminum wheel with high mechanical properties, that is, high tensile strength and fatigue strength. Therefore, in manufacturing the aluminum wheel of the same strength, it is possible to manufacture a much lighter aluminum wheel than conventional, it can greatly contribute to the weight reduction of the vehicle.

On the other hand, the present invention is not limited to the above specific preferred embodiment, and any person having ordinary knowledge in the field to which the invention belongs without departing from the gist of the invention claimed in the claims, various changes Would be possible.

Claims (2)

A pump for pumping an aluminum wheel mold, a cylinder in which a discharge port communicates with the mold, a piston for pressurizing the cylinder, an aluminum melting furnace in communication with the inside of the cylinder, and molten aluminum in the melting furnace between the cylinder and the melting furnace into a cylinder. Including a molten aluminum pumped into the cylinder by the pump in the mold by the piston, and cooling the mold in the molten aluminum filled state to produce an aluminum wheel, characterized in that for producing an aluminum wheel Forging machine. The molten aluminum supplied from the molten metal is supplied into the cylinder, and the molten aluminum is pressurized by a piston to be filled with high pressure in the mold, and the molten aluminum is cooled by cooling the mold while the mold is filled with molten aluminum. Aluminum wheel manufacturing method by forging method.