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Plate cold and hot rapid circulation age forming method and device

An aging forming, rapid cycle technology, applied in forming tools, heat treatment furnaces, heat treatment equipment, etc., can solve the problems of slow reduction of material elastic stress and long forming time, so as to reduce stress level, reduce aging forming time, promote The effect of uniform precipitation and dispersion distribution

Active Publication Date: 2020-06-05
NANCHANG HANGKONG UNIVERSITY
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  • Abstract
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  • Application Information

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Problems solved by technology

[0003] However, the existing aging forming is mainly due to the slow reduction process of the elastic stress of the material, which requires a long forming time

Method used

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  • Plate cold and hot rapid circulation age forming method and device
  • Plate cold and hot rapid circulation age forming method and device
  • Plate cold and hot rapid circulation age forming method and device

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Embodiment 1

[0031] like Figure 1-3 As shown, the present embodiment provides a cold and hot rapid cycle aging forming method for sheet metal, which includes the following steps:

[0032] Step 1. Put the solid solution treated sheet into the die horizontally, and then press the punch on the sheet;

[0033] Step 2, put the forming die 1 into the pressure device to apply pressure, so that the sheet material is tightly attached to the profile surface of the forming die 1, tighten the pressure-holding nut, and maintain the pressure of the forming die 1 on the sheet material;

[0034] Step 3, start the temperature control system, and enter the cooling and heating cycle aging forming process: at this time, the forming mold 1 is at room temperature, and the heating device is activated, so that the forming mold 1 is heated to a temperature slightly higher than the aging temperature;

[0035] Step 4. After reaching the set temperature, the temperature control system will turn off the heating devi...

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Abstract

The invention discloses a plate cold and hot rapid circulation age forming method and device, and relates to the technical field of plate forming. The plate cold and hot rapid circulation age formingmethod comprises the following steps that a plate subjected to solution treatment is horizontally placed in a female die, then a male die is pressed on the plate; a forming die is placed on a pressuredevice to apply pressure, a pressure maintaining nut is tightened, the pressure of the forming die on the plate is maintained; a temperature control system is started, entering a cold and hot circulation aging forming process is carried out: at the moment, the forming die is at room temperature, a heating device is started so that the forming die can be heated to a temperature slightly higher than the aging temperature; after the set temperature is reached, the temperature control system turns off the heating device and starts a cooling device, so that the forming die is cooled to the room temperature; and after the first circulation process is completed, the continuous circulation aging process is started, after the last circulation process is completed, the plate can be taken out afterbeing cooled to the room temperature, and a formed part is obtained. According to the plate cold and hot rapid circulation age forming method and device, the aging forming time is shortened, the forming performance is improved, and the better forming effect is achieved.

Description

technical field [0001] The invention relates to the technical field of sheet material forming, in particular to a method and device for sheet material cooling and heating rapid cycle aging forming. Background technique [0002] Aluminum alloy sheets are processed into large curvature components through aging forming. As a key factor, the temperature in the aging process has an important impact on the quality of forming. The current research direction is mainly to increase the dislocation activation energy, increase the dislocation density, and improve the conversion rate from elastic deformation to plastic deformation by applying external energy and pre-deformation during the aging process. [0003] However, the existing aging forming requires a long forming time mainly due to the slow reduction process of the elastic stress of the material. [0004] Therefore, there is an urgent need to provide a new cold-heating rapid cycle aging forming method and device to solve the abo...

Claims

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Application Information

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IPC IPC(8): B21D5/00B21D37/16B21D5/02B21C51/00B21D37/10C21D9/00C22F1/04
CPCB21C51/00B21D5/00B21D5/006B21D5/008B21D5/0209B21D37/10B21D37/16C21D9/0062C21D9/0081C22F1/04
Inventor 刘大海柴浩瑞陈劲东郭正华
Owner NANCHANG HANGKONG UNIVERSITY
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