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An ultrasonic brazing device and method based on a pin-type welding head

An ultrasonic brazing and welding head technology, applied in welding equipment, manufacturing tools, metal processing equipment, etc., can solve the problems of insignificant magnetic stirring effect, inconspicuous promotion of mass transfer process, and demanding material size requirements, so as to solve the problem of residual Greater stress, shorter process cycle, and reduced equipment cost

Active Publication Date: 2021-07-13
HARBIN INST OF TECH AT WEIHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional ultrasonic-assisted brazing has shortcomings such as serious ultrasonic power loss, poor temperature uniformity, and strict requirements on the size of materials. In addition, it can only realize the interconnection of lap joints, and its application is greatly limited.
However, other external energy field assisted brazing methods such as electric field assisted brazing and magnetic field assisted brazing have technical deficiencies such as insignificant magnetic stirring effect and inconspicuous mass transfer process.

Method used

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  • An ultrasonic brazing device and method based on a pin-type welding head
  • An ultrasonic brazing device and method based on a pin-type welding head
  • An ultrasonic brazing device and method based on a pin-type welding head

Examples

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Effect test

Embodiment 1

[0039] A method for realizing interconnection of copper-aluminum heterogeneous metals based on ultrasonic brazing of a needle-type welding head, comprising the following steps:

[0040] Step 1: Place the welding fixture in orange oil and acetone solution for ultrasonic cleaning for 5 minutes respectively, and then dry it in a blast drying oven at a temperature of 200°C for 3 hours. After cooling, place it in a drying oven for use ; The base metals to be interconnected are 1060 aluminum and T2 pure copper, both of which have a thickness of 1mm. V-shaped grooves are made on the base metals to be interconnected, and the angle of the groove surface is 30°. A wedge-shaped welding head with a front end of 60°, the material is tungsten-rhenium alloy, and the groove is polished with 3000-mesh sandpaper, and then it is placed in orange oil and acetone solution for ultrasonic cleaning for 3 minutes, and then placed in a blast drying oven for drying. The temperature is 200℃, the time is ...

Embodiment 2

[0045] A method for realizing the interconnection of aluminum nitride ceramics-aluminum heterogeneous materials based on ultrasonic brazing of pin-type welding heads, which includes the following steps:

[0046] Step 1: Place the welding jig in orange oil and acetone solution for ultrasonic cleaning for 3 minutes respectively, and then dry it in a drying oven at a temperature of 200°C for 3 hours. After cooling, place it in a drying oven for use; The connecting base materials are 1060 aluminum and aluminum nitride ceramics respectively, with a thickness of 5mm. V-shaped grooves are made on the materials to be interconnected, and the angle of the groove surface is 35°. 70°, the material is tungsten-rhenium alloy, and the groove is polished with a 3000-mesh diamond grinding disc, and then it is placed in orange oil and acetone solution for ultrasonic cleaning for 3 minutes, and then placed in a drying oven for drying at a temperature of 200°C for 2 hours, cool down and place in ...

Embodiment 3

[0051] A method for realizing the interconnection of alumina ceramics-aluminum heterogeneous materials based on ultrasonic brazing of pin-type welding heads, which includes the following steps:

[0052] Step 1: Place the welding jig in orange oil and acetone solution for ultrasonic cleaning for 3 minutes respectively, and then dry it in a drying oven at a temperature of 200°C for 3 hours. After cooling, place it in a drying oven for use; The connecting base materials are 1060 aluminum and alumina ceramics respectively, with a thickness of 5mm. V-shaped grooves are made on the materials to be interconnected, and the angle of the groove surface is 35°. 70°, the material is tungsten-rhenium alloy, the groove is polished with a 3000-mesh diamond grinding disc, and then it is ultrasonically cleaned in orange oil and acetone solution for 3 minutes, and then dried in a drying oven at a temperature of 200 ℃, the time is 2 hours, and put it in a dry box after cooling for later use; ass...

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Abstract

The invention relates to the field of welding technology, in particular to a needle-type welding head-based ultrasonic welding head that is especially suitable for realizing homogeneous or heterogeneous butt joints, fillet joints, and T-joint interconnections of ceramic materials, metal materials, and composite materials. The brazing device and method are characterized in that they are composed of an ultrasonic system, a heating system, and a traveling device system, wherein the ultrasonic system is provided with an ultrasonic generator, a piezoelectric ceramic transducer, a vibration transmission rod, an energy concentrator, and a welding head, The ultrasonic generator is connected with the piezoelectric ceramic transducer, the piezoelectric ceramic transducer is connected with the energy concentrator through the vibration transmission rod, the output end of the energy concentrator is connected with the welding head, the piezoelectric ceramic transducer, the vibration transmission The assembly composed of the rod, the energy concentrator and the welding head is fixed on the mechanical arm through the clamp, and the ultrasonic wave generated by the ultrasonic generator is transmitted to the welding head and acts on the weld; compared with the prior art, the present invention has simple equipment, short process cycle, Remarkable advantages such as flexible operation.

Description

Technical field: [0001] The invention relates to the field of welding technology, in particular to a needle-type welding head-based ultrasonic welding head that is especially suitable for realizing homogeneous or heterogeneous butt joints, fillet joints, and T-joint interconnections of ceramic materials, metal materials, and composite materials. Brazing apparatus and method. Background technique: [0002] As a key technology in traditional manufacturing and electronic device packaging, brazing is widely used in aerospace, petrochemical, rail transit, automobile manufacturing, clean energy and many other fields. With the rapid development of modern industry, dissimilar material components are widely used in engineering applications because of their good comprehensive performance. Dissimilar materials such as ceramics, metals, and composite materials have huge differences in physical, chemical, and mechanical properties. Conventional welding methods are difficult to achieve t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K1/06B23K1/00B23K1/002B23K1/20
CPCB23K1/0004B23K1/002B23K1/06B23K1/206
Inventor 李卓霖董红杰罗衍旭宋晓国郭夏君田皓赵洪运
Owner HARBIN INST OF TECH AT WEIHAI