Method for the production of large-sized products

 

(57) Abstract:

The inventive method for the production of large-sized products includes the deformation of material in the stamp on technological transitions with a fixed rotation of the workpiece after each transition. First carry out the deformation of the workpiece by deforming part of the finished product in height, after which the deformation of the workpiece continue in additional stamp with the completion of the molding of the finished product, when this strain is produced in stamps with the same engraving Creek on the upper or lower plate. 4 Il.

The invention relates to the processing of metals by pressure and can be used in the production of large-sized products, for example, of aluminium alloys in stamps, the capacity of which does not allow to produce large-size products.

A known method for the production of large-sized products, including laying the workpiece in a stream of stamp deformation her on technological transitions and rotate the workpiece after each transition (1).

A known method for the production of large-sized products, including deformation of the workpieces in the stamp on technological perruthenate manufacture due to the need for the large rotation of the workpiece around a vertical axis after each technological transition, in this case, if the shape of the workpiece is not round, for example, extruded, the known methods cannot produce the stamping of these blanks.

The technical result generated by the invention, is expressed in eliminating the need for rotation of the workpiece after each technological transition and the process of deformation on the equipment of smaller capacity. According to the invention in the method of production of large-sized products, including deformation of the workpieces in the stamp on technological transitions.

First carry out the deformation of the workpiece forming part of the finished product in height, after which the deformation of the workpiece continue in additional stamp with the completion of the molding of the finished product, while the deformation of the workpiece is produced in stamps with the same engraving Creek on the upper or lower plate.

Reducing the complexity of manufacturing products is due to the fact that the formation of the products is done without turning blanks vertical axis - this was possibly as a result of forming part of the finished product height first in one stamp, and then continue forming in a different stamp.

Amalia any form - this expands the technological capabilities of the method.

In Fig. 1 shows a stamp in the open position with the workpiece, the I-th transition of Fig. 2 - stamp in close position; Fig. 3 - stamp in the open position, the second transition; Fig. 4 - stamp - in close position.

The stamp (Fig. 1) for implementing the method comprises a top 1 and bottom 2 boards on the working surface of the bottom plate 2 is made engraving stream 3 in square projection on the parting line, in excess of the maximum projected area of the part, which can be performed by means of hot forming processes on existing equipment.

Engraving 4 on the top plate 1 does not exceed the maximum area possible for the deformation of the existing equipment and the gnashing of the stamp (Fig. 2) may deform the workpiece 5 until complete clearance height only on the opposite side of the square prints 3 of the bottom plate 2. The rest of the prints 6 plate 1 is cut to a depth H so that when the closure stamp forged 7 in this part are not subjected to deformation, i.e. to the depth H exceeds the height h of the workpiece 3.

In Fig. 3 shows a stamp containing the lower plate 2 is the same as in the stamp in Fig. 1 or have odinet engraving stream 9, which is made all the details.

The method is as follows.

The workpiece 5 is preheated and greased, placed in a stream 3 of the bottom plate 2 of the stamp and deform the upper plate 1 having the engraving 4. After forming the Central part of the billet 40-60% of the area of the projection on the parting line of the stamp to the finished product height (depending on the efforts of the press), stamp unlock, leave forgings 7 on the plate 2, replace the top plate 1 to plate 8 with the etching of the stream 9. After applying lubricant to the surface of the forgings 7 carry out technological transformation - deform the upper plate 8 only those areas that were not in the first technological transition and get the finished product 10.

P R I m m e R. For the production of extruded products cipher LS-48 (Fig. 4) alloy AMg6 took ingot h mm, received the workpiece 5 (Fig. 1) in a known manner free forging. The workpiece is loaded into connearney furnace, heated to a temperature of 410aboutWith, were unloaded from the furnace and the truck was applied to a hydraulic press force 10000 so Then capture of the truck was raised to the level of the mirror of the bottom plate 2 of the stamp (Fig. 1) and with help of a bar of the workpiece 5 (Fig. 1) one hundred is 5 produced the deformation of the workpiece (Fig. 2). Received forgings 7 was removed from the stamp and submitted to boot into the oven to heat. Forgings 7 downloaded in connearney furnace was heated to a temperature of 410aboutAnd likewise fed to the press force 10000 ie , and fit in the bottom plate 2 of the stamp (Fig. 3). After applying technological lubricant produced the deformation forgings 7 through the upper plate stamp 8 (Fig. 3). Thus forged 7 is deformed in places where no deformation on the first transition (Fig. 2). In the deformation process forgings 7 received the finished product 10 (Fig. 4).

The invention allows to reduce the complexity of manufacturing large-sized products of any form on stamping presses, not allowing it to produce such products due to low power. (56) USSR Author's certificate N 511133, CL 21 J 5/02, 1976.

USSR author's certificate N 1094660, CL 21 J 5/02, 1984.

Method for the production of LARGE-sized PRODUCTS, including deformation of the workpieces in the stamp on technological transitions, characterized in that the first exercise deformation of the workpiece with a forming part of the finished product in height, after which the deformation of the workpiece continue in additional stamp with the completion Uru Creek on the upper or lower plate.

 

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