TWI558480B - A method of hot forging press for shaping metal rods - Google Patents

Description

Metal bar hot forging stamping forming method

The present invention relates to a molding method, and more particularly to a method of hot forging stamping of a metal bar.

Press, general parts (referred to as nuts, washers, and other mechanical parts, etc.), which are mainly equipped with a large volume of metal blocks, and then the vehicle repair process, that is, one by one Cutting and grinding the metal block so that the metal block is externally formed to form a part to be used; however, using the vehicle repair method, the required metal block must be larger than the part volume, and the vehicle repair is performed. In addition to slow processing during processing, many waste materials are also generated, resulting in an increase in material cost and manufacturing time, and the use of parts formed by the car repair process, because the metal block processing process is not using extrusion In the way, the hardness of the parts after processing is also poor.

Therefore, some manufacturers further use a stamping method, which is to place the metal material on a die of a forging machine at room temperature to utilize the die on the forging machine. A pressure processing method in which a metal material on a mold is subjected to pressure by impact to plastically deform or separate the metal material to obtain a desired part.

The current stamping forming method is limited to the use of a small metal material. For example, in a screw forming machine, the metal material must first be drawn into a metal wire having a small diameter, and then the forging machine has sufficient impact force to enable the Metal wire stamping, however, if the required part volume is large, the expansion ratio of the metal wire itself, the die, the die and the power of the forging machine, although theoretically, the forging machine can be added. The overall volume and tonnage, in order to meet the required volume of parts, but in fact is very inconsistent with economic benefits, so in the current large-volume parts, it is still processed in the way of repair; therefore, how to not By increasing the volume and power of the forging machine, it is possible to perform stamping processing on a large-sized metal material, and to ensure that the forging machine can still operate normally, which is an objective of the industry.

Therefore, the object of the present invention is to provide a metal bar hot forging stamping forming method, which makes the metal bar of larger volume easier to process, so as to reduce the punching power required by the forging machine, and avoid the die and the die. loss.

Therefore, the metal bar hot forging stamping forming method of the present invention comprises a preparation step, a heating step and a press forming step in sequence; wherein the heating step is provided with a heater, and the metal bar is input to the heating The device is heated to form the metal bar to a high temperature state, so that the metal bar forms a high expansion ratio for easy processing; and the press forming step has a forging machine for the high temperature state a metal bar is input to the die punching device by the feeding device, thereby increasing the ease of processing of the metal bar. Further, in addition to reducing the punching power required for the die, and the loss of the die and the die, the metal material can be quickly formed into an object, and the coolant of the cooling device is circulated to cool the die, thereby effectively avoiding the die. The high temperature of the metal bar is damaged, which causes the forging machine to perform normal processing operations.

〔this invention〕

3‧‧‧Metal bar hot forging stamping forming method

31‧‧‧Material preparation steps

32‧‧‧heating steps

33‧‧‧ Stamping step

4‧‧‧Forging machine

41‧‧‧heater

42‧‧‧ die

43‧‧‧Mold

44‧‧‧Clamps

45‧‧‧Cooling device

A‧‧‧Metal Bar

451‧‧‧pipe

452‧‧‧ sprinkler

1 is a block diagram of a preferred embodiment of the present invention.

2 and 3 are schematic views showing the operation of a preferred embodiment of the present invention.

The above and other technical contents, features, and advantages of the present invention will become apparent from the Detailed Description of the <RTIgt;

Referring to FIG. 1 and FIG. 2, a preferred embodiment of the present invention, a metal bar hot forging stamping forming method 3, the metal bar hot forging stamping forming method 3 includes a preparation step 31, a heating step 32 and a a stamping forming step 33; wherein the preparing step 31 is provided with a metal bar A; and the heating step 32 is mainly characterized in that a forging machine 4 is provided with a heater 41, and the heater 41 is just for the metal bar The material A is input while the metal bar A is heated by the heater 41 during the input process, so that the metal bar A exhibits a high temperature softening state to form a processing characteristic with a high expansion ratio.

The heating step 32 is provided with a heater 4, and the metal bar A is input to the heater 4 for heating to form the metal bar A. The high temperature state, and the high temperature state can be set according to different materials, so that the metal bar A forms a form that is easy to process.

Still referring to FIG. 3, which is operated on a forging machine 4, the forging machine 4 has a plurality of dies 42 disposed on the forging machine 4, and a plurality of dies 43 corresponding to the dies 42 are disposed at the same a cutter 44 between the molds 43 and a cooling device 45 disposed on the mold 43, wherein the cooling device 45 has a plurality of tubes 451 surrounding the molds 43 and flows through the tubes 451. a cooling liquid inside, so that the cut metal bar A is punched by the punches, and then clamped and displaced by the clamps 44, so that the metal bar A is progressively stamped to form a part appearance. At this time, the metal bar A is pressed by the die 42 in the mold 43, and the heat absorbed by the molds 43 can be cooled by the cooling device 45.

Continuing the foregoing, when the press forming step 33 is performed, the metal bar A passing through the heating step 32 is directly transported to the forging machine 4, that is, the heater 41 heats the metal bar A. Then, the metal bar A is conveyed to the mold 43 by the clamping of the clamper 44, and the metal bar is made due to the high temperature state of the metal bar A during the impact of the die 42. A becomes soft, in addition to reducing the impact force required for the die 42 and the mold 43, and at the same time increasing the ductility of the metal bar A, making the metal bar A easier to process, so the die 42 is required The punching power can also be lowered, so that the die 42 and the mold 43 can easily press-form the metal bar A.

Furthermore, at the same time in the stamping process, due to the metal bar A When the body is provided with a high temperature, the thermal energy will be transmitted to the mold 43 at the moment of impact, and the coolant passing through the cooling device 45 continuously flows between the molds 43 to prevent the mold 43 from being prevented from being in a continuous operation. When the mold 43 is relatively high, the mold 43 is also relatively soft, and the mold 43 is effectively prevented from being deformed and damaged, thereby further prolonging the life of the mold 43 and the die 42. Further, in order to stabilize the die 42 and the mold 43 In order to cool down, a water sprayer 452 may be disposed between the die 42 and the mold 43 in time to perform a water spray cooling operation on the die 42.

Therefore, the heating step 32 of the hot bar forming method 3 of the metal bar can make the metal bar A soft, and increase the ease of processing of the metal bar A, thereby reducing the die 42. The required punching power, as well as reducing the loss of the die 42 and the mold 43, can quickly form the metal material A into a half finished or finished part for subsequent use.

In the above, the metal bar hot forging press forming method of the present invention sequentially forms the metal bar into a high temperature state by the steps of the preparing step, the heating step, and the press forming step, etc., through the heating step. Promoting the metal bar to be heated to a high heat state, so that the metal bar forms a high expansion ratio and easy to process, thereby reducing the punching power required for the die and reducing the loss of the die and the die. In the step, the metal bar is further input into the die of the forging machine, so that the die of the forging machine can quickly press the metal material into an object, and the perforated ends of the die are connected to the cooling of the forging machine. a device for the cooling liquid of the cooling device The ring cools the mold, effectively preventing the mold from being damaged by the high temperature of the metal bar.

The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent changes and modifications made in accordance with the scope of the present invention and the contents of the description of the invention. All should remain within the scope of the invention patent.

3‧‧‧Metal bar hot forging stamping forming method

31‧‧‧Material preparation steps

32‧‧‧heating steps

33‧‧‧ Stamping step

41‧‧‧heater

4‧‧‧Forging machine

Claims (2)

A metal bar hot forging stamping forming method, which is formed by stamping a metal bar on a forging machine, the metal bar hot forging stamping forming method comprising: a preparing step, which is provided with a metal bar; a step of providing a heater on the forging machine, and the heater is just for inputting the metal bar, and the metal bar is heated by the heater during the input process, so that the metal bar exhibits high temperature softening. And a stamping forming step of operating on a forging machine having a plurality of dies disposed on the forging machine, a plurality of dies corresponding to the dies, and a splicer disposed between the dies And a cooling device disposed on the mold, wherein the cooling device has a plurality of pipes surrounding the molds, and a coolant flowing in the pipes, so that the cut metal bars After the stamping, the clamps are sequentially displaced to the respective molds, so that the metal bar is progressively stamped and formed into a part appearance, and the metal bar is in the mold at this time. The stamping die to be heat absorbed by such a mold may be cooled by the cooling means. The hot-bar stamping forming method for a metal bar according to the first aspect of the invention, wherein a water sprinkler is disposed between the die and the die to perform a water spray cooling operation for the die.