Extrusion components for metal plastic extrusion forging

Abstract

The invention discloses an extrusion forging assembly for metal plasticity extrusion forging molding. The extrusion forging assembly comprises an extrusion forging head and an extrusion forging driving mechanism used for driving the extrusion forging head to perform extrusion forging on blanks, the extrusion forging assembly is provided with a hole extruding head for extruding holes in the blanks, the hole extruding head is arranged in the extrusion forging head in the extrusion forging direction, and the extrusion forging assembly is further provided with a hole extrusion driving mechanism which can drive the hole extruding head to stretch out of the extrusion forging head to extrude holes in the blanks, and make the hole extruding head retract into the extrusion forging head after the holes are extruded so that the hole extruding head and the extrusion forging head can jointly perform extrusion forging on the blanks. The extrusion forging assembly for metal plasticity extrusion forging molding has the advantages of being simple and compact in structure, low in cost and energy consumption, small in needed extrusion force, capable of reducing extrusion forging molding difficulty and improving the internal performance and the quality of molded workpieces, and the like.

Description

technical field [0001] The invention relates to the technical field of metal extrusion forging, in particular to an extrusion forging component used for metal plastic extrusion forging. Background technique [0002] Metal extrusion and forging technology is a method of pressure processing using the principle of metal plastic forming. The pretreated metal blank is put into the mold, and then pressure is applied to the metal blank to deform the metal blank and fill the mold cavity, thereby Get the parts you need. Metal extrusion and forging technology is an advanced technology with less cutting or no cutting, which is conducive to improving the quality of products, improving the internal microstructure and performance of products, and also has the advantages of material saving, low energy consumption, wide application range and flexible production It has the characteristics of high reliability, simple process flow and low investment in equipment. [0003] At present, there a...

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Problems solved by technology

[0004] The connection between the existing extrusion forging head and the piston rod of the main cylinder is generally threaded connection. Within the range of thread strength, the extrusion forging head directly acts on the surface of the workpiece blank with hydraulic energy, thereby deforming the workpiece blank

The extrusion forging head is in contact with the workpiece blank for one-time extrusion forging. Due to the large force-bearing area, a large pressure must be required to cause the workpiece blank to undergo plastic deformation. Extrusion forging is difficult and requires a large extrusion forging force. The performance of the system and the mold puts forward higher requirements, and the equipment cost and energy consumption are also greatly increased; and if multiple deformations are used, multiple extrusion forgings of multiple equipment are required to meet the precision requirements of parts, etc. As a result, the existing forming equipment and energy supply system are complicated, the equipment is bulky, large in investment, and high in cost; in addition, because the workpiece blank reaches the required shape through one-time continuous plastic deformation, the internal crystal phase structure of the metal flows during the extrusion forging process. High resistance, which will also affect the internal structural performance of the molded workpiece and reduce the quality of the molded workpiece

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