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Device for predicting welding heat crack sensitivity of aluminum alloy

A sensitive, aluminum alloy technology, applied in the field of aluminum alloy welding, can solve problems that are difficult to enter the practical application stage, time-consuming, and costly

Inactive Publication Date: 2020-04-14
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There are few reports on aluminum alloy welding hot cracking sensitivity devices at home and abroad. Some researchers have used theoretical simulation methods to study welding hot cracking sensitivity. However, due to the lack of corresponding experimental data support, it is difficult to enter the practical application stage in industry.
Industrial welding experiments are a very direct method to study the hot cracking susceptibility of alloys; however, this method is time-consuming and expensive, so it is very important to develop a device for predicting the hot cracking susceptibility of aluminum alloy welding. Significance

Method used

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  • Device for predicting welding heat crack sensitivity of aluminum alloy
  • Device for predicting welding heat crack sensitivity of aluminum alloy
  • Device for predicting welding heat crack sensitivity of aluminum alloy

Examples

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Effect test

Embodiment 1

[0033] like figure 1 , figure 2 and image 3 As shown, in this specific embodiment, the device for predicting the hot cracking sensitivity of aluminum alloy welding is mainly composed of a T-shaped mold A, a water-cooled base B, a sensor D, a fixing device C, and a data acquisition system E. The T-shaped mold A is embedded in the water-cooled base B, the sensor D is fixed by the fixture C, and the sensor D is connected with the data acquisition system E. like figure 2 As shown, the T-shaped mold includes a T-shaped mold body 01, a movable slider 02 and a stopper 03; the slider 02 is embedded in the T-shaped mold body 01, and is connected with the sensor D through a threaded rod. like image 3 As shown, the T-shaped mold body 01 has an aperture 04 where a thermocouple can be inserted, and there is a gap between the aperture 04 and the thermocouple for filling asbestos. After the thermocouple is inserted, it is connected to the data acquisition system E.

[0034] After th...

Embodiment 2

[0039] like figure 1 , Figure 4 and Figure 5 As shown, in this specific embodiment, the device for predicting the hot cracking sensitivity of aluminum alloy welding is mainly composed of a T-shaped mold A, a water-cooled base B, a sensor D, a fixing device C, and a data acquisition system E. The T-shaped mold A is embedded in the water-cooled base B, the sensor D is fixed by the fixture C, and the sensor D is connected with the data acquisition system E. like Figure 4 As shown, the T-shaped mold includes a T-shaped mold body 01, a movable slider 02 and a stopper 03; the slider 02 is embedded in the T-shaped mold body 01, and is connected to the sensor D through a threaded rod; as Figure 5 As shown, the T-shaped mold body 01 has an aperture 04 where a thermocouple can be inserted, and there is a gap between the aperture 04 and the thermocouple for filling asbestos. After the thermocouple is inserted, it is connected to the data acquisition system E.

[0040] In this emb...

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Abstract

The invention provides a device for predicting the welding heat crack sensitivity of aluminum alloy, and belongs to the technical field of aluminum alloy welding. The device comprises a T-shaped mold,a water cooling base, a sensor, a fixing device and a data acquisition system, the T-shaped mold comprises a main body part, a movable sliding block and a stop block, the sliding block is embedded into the T-shaped mold main body part to be connected with the sensor, the T-shaped mold main body part has hole into which the thermocouple can be inserted, the thermocouple is connected with the dataacquisition system, the T-shaped mold is embedded into the water-cooling base, the sensor is fixed through the fixing device, and the sensor is connected with the data acquisition system. By means ofthe device, the aluminum alloy welding cooling process can be simulated, changes of temperature and load along with time are recorded in real time through the data acquisition system, the welding heatcrack sensitivity of aluminum alloy is predicted, and therefore industrial welding is guided.

Description

technical field [0001] The invention relates to the technical field of aluminum alloy welding, in particular to a device for predicting hot cracking sensitivity of aluminum alloy welding. Background technique [0002] Due to energy and environmental issues in today's society, lightweight development is an inevitable trend. Aluminum alloy is an important part of the development of lightweight materials, and the problem of aluminum alloy connection has been around for a long time. Compared with 5000 series alloys with better welding performance, 2000 series and 7000 series alloys are prone to hot cracks during fusion welding. , limiting its further development. Therefore, it is necessary to develop a device for predicting the hot cracking susceptibility of aluminum alloy welding. [0003] After decades of development, a variety of hot crack measurement methods have made great progress. There are many related reports at home and abroad, but researchers mainly focus on the ho...

Claims

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Application Information

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IPC IPC(8): G01N1/36G01N1/42G01N3/08G01K7/02B23K37/00
CPCG01N1/36G01N1/42G01N3/08G01K7/02B23K37/00G01N2001/366G01N2203/0067
Inventor 张迪潘艳林李宏祥张兆锐庄林忠张济山
Owner UNIV OF SCI & TECH BEIJING
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