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Warm type high-speed forming device for experiments

A warm forming and experimental technology, which is applied in the field of experimental devices, can solve the problems of inability to accurately control the temperature, and the inability to realize accurate heating and rapid cooling of difficult-to-form materials at the same time, and achieve the effects of compact structure, light weight, and improved experimental efficiency.

Inactive Publication Date: 2014-07-02
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to design a warm-type high-speed heating machine for experiments, aiming at the problem that it can only be roughly heated, but cannot accurately control the temperature, especially when heating difficult-to-form materials. Forming device, so that it can not only heat the difficult-to-form materials accurately in the mold cavity but also allow the materials to undergo high-speed impact within the device, and use the cooling device to cool down the impact-formed materials, while avoiding industrial hot forging molds Applied to the limitations of device size and cushioning that existed during the experiment

Method used

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  • Warm type high-speed forming device for experiments
  • Warm type high-speed forming device for experiments
  • Warm type high-speed forming device for experiments

Examples

Experimental program
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Effect test

Embodiment

[0039] In the experiment, an aluminum-magnesium alloy sheet with a thickness of 1 mm and a diameter of 60 mm was impact-formed with a warm-type high-speed forming device, and the forming temperature was 500 °C. During the test, the above-mentioned magnesium-aluminum alloy sheet was placed between the blank holder 6 and the die sleeve 7, and the workpiece was pre-tightened by tightening the blank holder 6. The heating temperature was 500°C, the heat preservation was 30 minutes, and the punch speed was 200m / s under the impact forming experiment. After the experiment, a super-resolution Axio CSM 700 true-color confocal microscope was used to detect the three-dimensional shape, forming depth and forming quality of the formed workpiece samples. The results show that the forming depth, forming surface integrity and forming quality of the formed parts are greatly improved, and the forming cracking defects are significantly reduced.

[0040] In addition, after the experiment, the si...

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Abstract

An experimental warm-type high-speed forming device, which includes a warm forming device (1) and a buffer temperature control device (17), which are connected as a whole through a transmission rod (11), and is characterized in that the warm The forming device (1) includes a punch (2), a shell (3), an insulating heat shield (4), a ceramic insulating cover (5), a blank holder (6), a mold sleeve (7), and a heating coil (8) , cooling water pipe (9), fixed flange (10), die (12), heat insulation pad (13), external stress ring (14), fastening ring (15) and fastening screw sleeve (16). The invention overcomes the disadvantages that a single heating device in the laboratory cannot accurately control the heating temperature and has no cooling device, and can rapidly and accurately heat and rapidly cool during a large number of experiments, thereby improving the efficiency of experiments.

Description

technical field [0001] The invention relates to an experimental device, in particular to a warm forming device for high-speed impact experiments, in particular to an experimental warm-type high-speed forming device used for high-speed impact experiments on difficult-to-form materials such as aluminum-magnesium alloys. forming device. Background technique [0002] As we all know, thermal impact forming is a commonly used forming method for difficult-to-form materials such as aluminum-magnesium alloys. Obtaining the warm forming properties of these materials required extensive experimentation. [0003] Existing thermoforming experiments use a constant temperature heating table (such as KOOCZ heating table), which is composed of a heating tube, a working table, a table body, a temperature controller, and a panel. The working surface of the constant temperature heating table is a square table. When working, place the impact forming material on the work table, and heat the imp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/28G01N1/44B21D22/02
Inventor 刘会霞郭朝沈宗宝张虎李品胡杨杜道忠高阳阳刘辉王霄
Owner JIANGSU UNIV
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