Semisolid filling and plastic deformation integration die forging process

A plastic deformation and semi-solid technology, applied in the direction of manufacturing tools, metal processing equipment, forging/pressing/hammer devices, etc., can solve the problems of performance gap, small plastic deformation, and non-structural state

Inactive Publication Date: 2017-09-26
ZHONGBEI UNIV
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Problems solved by technology

[0002] Although liquid die forging combines the advantages of traditional casting and forging, it is still mainly formed by solidification. Therefore, there is still a certain gap in performance compared with forgings produced by solid die forging. The main reason is the amount of plastic deformation. Small, the structure state is not a deformed fine-grained structure

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  • Semisolid filling and plastic deformation integration die forging process
  • Semisolid filling and plastic deformation integration die forging process
  • Semisolid filling and plastic deformation integration die forging process

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Embodiment Construction

[0027] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0028] see Figure 1 to Figure 4 , a semi-solid filling-plastic deformation integrated die forging process described in a preferred embodiment of the present invention, the process at least includes the following steps:

[0029] The aluminum alloy semi-solid billet is prepared by the strain-induced melting activation method, including: selecting 6061 aluminum-magnesium alloy extruded rod, using grease graphite lubricant on the upper and lower end faces of the 6061 aluminum-magnesium alloy extruded rod, and extruding the extruded billet Direct upsetting. Before upsetting, anneal the billet to eliminate stress. The annealing temperature is 540°C, hold for 2 hours, air-cool,...

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Abstract

The invention relates to a semisolid filling and plastic deformation integration die forging process. The process is completed by adopting a forging die system. The process comprises the steps: in a die cavity, semisolid metal completes mold filling and solidification under the first pressure, and thus a blank with the shape of a formed part is obtained; after the second pressure is applied, the formed metal can compel some movable modules to move, and thus some die spaces are released; meanwhile, a pre-forging blank realizes a true sense of plastic deformation under pressure; and finally the formed part is obtained, wherein the first pressure value is smaller than the second pressure value.

Description

technical field [0001] The invention relates to a semi-solid filling-plastic deformation integrated die forging process. Background technique [0002] Although liquid die forging combines the advantages of traditional casting and forging, it is still mainly formed by solidification. Therefore, there is still a certain gap in performance compared with forgings produced by solid die forging. The main reason is the amount of plastic deformation. Small, the organizational state is not a deformed fine-grained structure. In order to improve the performance of the two forming technology parts, in recent years, some scholars have proposed to use casting to make the blank first, and then carry out ordinary hot die forging. This method is only suitable for simple shape parts, and the main purpose is to save materials. [0003] In view of the above-mentioned defects, the designer actively researches and innovates, in order to create a semi-solid filling-plastic deformation integrated ...

Claims

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Application Information

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IPC IPC(8): B21J5/00B21J5/08B21J5/02B21J3/00B21J13/02B21J1/06
CPCB21J1/06B21J3/00B21J5/002B21J5/025B21J5/08B21J13/02
Inventor 徐宏张新石阳毛红奎任霁萍张国伟
Owner ZHONGBEI UNIV
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