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AC tungsten inert gases welding electric arc micro-melting brazing procedure for aluminium, titanium and diverse metal alloy thereof

A technology for argon tungsten arc welding and dissimilar metals, which is applied to arc welding equipment, metal processing equipment, welding/welding/cutting items, etc. It can solve the problems of long production cycle and expensive diffusion connection equipment, and achieve low cost and reduce Generate and install simple effects

Inactive Publication Date: 2007-08-15
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The present invention aims at the disadvantages of miscibility and intermetallic compounds produced during the welding process of dissimilar metals of titanium and titanium alloys, aluminum and aluminum alloys, the problem of heat dissipation of titanium, and the disadvantages of expensive and long production cycle of existing diffusion connection equipment. Dissimilar metals of aluminum, titanium and their alloys AC tungsten argon arc welding arc micro-melting brazing method

Method used

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  • AC tungsten inert gases welding electric arc micro-melting brazing procedure for aluminium, titanium and diverse metal alloy thereof
  • AC tungsten inert gases welding electric arc micro-melting brazing procedure for aluminium, titanium and diverse metal alloy thereof

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specific Embodiment approach 1

[0013] Specific embodiment one: illustrate this embodiment in conjunction with Fig. 1, method steps are as follows:

[0014] Step 1: Make a groove of 30°-55° and a blunt edge of 1-3mm at the butt joint of the titanium plate or titanium alloy plate 1, and fix the lower surface of the titanium plate or titanium alloy plate 1 on a surface with circulating cooling water On the copper fixture 3 of the device 2, a vibrating device 4 is installed on the top of the titanium plate or titanium alloy plate 1, and then the titanium plate or titanium alloy plate 1, the copper fixture 3 and the vibrating device 4 are placed in the air and cleaned. In the welding cabin 5 that is filled with inert gas;

[0015] Step 2: Start the circulating cooling water device 2 and the vibration device 4, apply cooling and ultrasonic vibration or mechanical vibration to one side of the titanium plate or titanium alloy plate 1, and perform welding, using AC tungsten arc welding arc micro-melting brazing The...

specific Embodiment approach 2

[0018] Specific embodiment two: the difference between this embodiment and specific embodiment one is that the vibrating device 4 is an ultrasonic vibrating device or a mechanical vibrating device, the frequency of the ultrasonic vibrating device is in the range of 18K to 120K Hz, and the amplitude is in the range of 10 μm to 1000 μm; mechanical vibration The frequency of the device is in the range of 25-4000 Hz, and the amplitude is in the range of 10 μm-1 mm; other components and connection methods are the same as those in the first embodiment.

[0019] TC4 titanium alloy and LF6 aluminum alloy are used as materials, the welding machine is COMPA500P TIG welding machine, the vibration head adopts YX-2805 ultrasonic welding equipment vibration head, and the tensile strength of the joint between titanium alloy and aluminum alloy is 200MPa, and the fracture position is located in LF6 aluminum alloy. The heat-affected zone of the alloy. Figure 2 is a microstructure diagram of the...

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Abstract

An alternative-current tungsten electrode argon-arc welding micro-fusion solder welding method of aluminum, titanium and other alloys can resolve the problems of expensive device and long producing period. The inventive method comprises that 1, processing slope opening and truncated edge at the connection between titanium or titanium alloy plate, while its lower part is fixed on a copper clamper with circulate cooling device and upper part is mounted with a vibrator, and they are arranged into a welding chamber filled with inertia gas, 2, starting circular cooling device and vibrator and welding, using alternative-current tungsten electrode argon-arc welding micro-fusion solder welding method to stack aluminum alloy at the slope opening of titanium or titanium alloy plate, and opening the aluminum ally into aluminum alloy layer at 1cm-5cm thickness, opening slope opening and truncated edge, 3, opening slope opening and truncated edge at the connection between another aluminum or aluminum alloy plate, arranging into welding chamber, starting circulate cooling device and vibrator and welding, cooling the welding element in welding chamber into room temperature, while all slope opening and truncated edges are 30-55 degrees and 1-3mm.

Description

technical field [0001] The invention relates to a welding method. Background technique [0002] Aluminum and aluminum alloys, titanium and titanium alloys have the characteristics of low density and high specific strength, and for titanium alloys, they also have the advantages of good corrosion resistance and heat resistance, so aluminum and aluminum alloys, titanium and titanium alloys are widely used It is applied to the transportation system to reduce the self-weight of the carrier, increase the effective load, and save energy consumption. According to statistics, the cost increase of 1 kg for the automobile industry is 10 euros, while the cost increase of 1,000 euros for the aerospace industry. In space applications, the unit The cost of quality and weight loss increases by more than 10,000 euros, which has great economic advantages. Accompanying this is the connection problem of titanium and titanium alloys, aluminum and aluminum alloy dissimilar materials. The welding...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/23B23K9/235B23K9/32B23K33/00B23K9/16B23K9/02B23K103/18
Inventor 吕世雄许志武王海涛郑祖金曲杰
Owner HARBIN INST OF TECH