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Welding system for reducing aluminum alloy laser-arc hybrid welding air holes and method

A welding system and hybrid welding technology, applied in welding equipment, welding equipment, auxiliary welding equipment, etc., can solve the problems of high porosity, uneven weld seam composition, and insufficient molten pool flow in laser-arc hybrid welding, and achieve The effect of reducing the risk of porosity, improving welding quality, and reducing welding difficulty

Active Publication Date: 2022-01-11
国家高速列车青岛技术创新中心 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention aims to solve the above problems, and provides a welding system and method for reducing porosity in aluminum alloy laser-arc hybrid welding, which solves the problem of laser welding of thick plate aluminum alloys. -The problem of high porosity in hybrid arc welding solves the problem of uneven weld composition caused by excessive cooling rate and insufficient molten pool flow

Method used

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  • Welding system for reducing aluminum alloy laser-arc hybrid welding air holes and method
  • Welding system for reducing aluminum alloy laser-arc hybrid welding air holes and method
  • Welding system for reducing aluminum alloy laser-arc hybrid welding air holes and method

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Embodiment 1

[0041] Such as figure 1 , figure 2 and Figure 6 As shown, this embodiment provides a welding system for reducing porosity in aluminum alloy laser-arc hybrid welding, including: a vibrating device and a probe, the vibrating device drives the probe 1 to vibrate, and the probe 1 includes a spiral Agitation section 11.

[0042] Further, the probe 1 also includes a linear first connecting part 12, the agitating part 11 and the first connecting part 12 are integrally formed, and the vibrating device includes an ultrasonic generator 31, a transducer 32 and an amplitude Rod 33 , the ultrasonic generator 31 is electrically connected to the transducer 32 , the transducer 32 is fixedly connected to the horn 33 , and the horn 33 drives the stirring part 11 and the first connecting part 12 to vibrate.

[0043] Further, a first clamp 4 is further included, the first clamp 4 is fixedly connected with the horn 33 , and the first clamp 4 is detachably connected with the first connecting p...

Embodiment 2

[0057] Such as image 3 and Figure 6 As shown, this embodiment provides a welding system for reducing porosity in aluminum alloy laser-arc hybrid welding, including: a vibrating device and a probe, the vibrating device drives the probe 1 to vibrate, and the probe 1 includes a spiral Agitation section 11.

[0058] Further, the probe 1 also includes a linear first connecting portion 12, the agitating portion 11 and the first connecting portion 12 are integrally formed, and the vibrating device includes an ultrasonic generator 31, a transducer 32 and an amplitude rod 33 , the ultrasonic generator 31 is electrically connected to the transducer 32 , the transducer 32 is fixedly connected to the horn 33 , and the horn 33 drives the stirring part 11 and the first connecting part 12 to vibrate.

[0059] Further, it also includes a first chuck 4, a first housing 5, a motor 6 and a second chuck 34, the horn 33 is fixedly connected to the second chuck 34, and the second chuck 34 is co...

Embodiment 3

[0076] Such as Figure 4 and Figure 6 As shown, this embodiment provides a welding system for reducing porosity in aluminum alloy laser-arc hybrid welding, including: a vibrating device and a probe, the vibrating device drives the probe 1 to vibrate, and the probe 1 includes a spiral Agitation section 11.

[0077] Further, the probe 1 also includes a linear first connecting portion 12, the agitating portion 11 and the first connecting portion 12 are integrally formed, and the vibrating device includes an ultrasonic generator 31, a transducer 32 and an amplitude rod 33 , the ultrasonic generator 31 is electrically connected to the transducer 32 , the transducer 32 is fixedly connected to the horn 33 , and the horn 33 drives the stirring part 11 and the first connecting part 12 to vibrate.

[0078] Further, it also includes a first chuck 4, a first housing 5, a motor 6, a second chuck 34, an electric push rod 52 and a second housing 53, and the horn 33 is fixed to the second ...

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Abstract

The invention relates to a welding system for reducing aluminum alloy laser-arc hybrid welding air holes and a method. The welding system comprises a vibration device and a probe, the vibration device drives the probe to vibrate, and the probe comprises a spiral stirring part. According to the welding system, through the stirring and vibration effects of the probe, sufficient flowing of molten pool metal is guaranteed, small bubbles existing in a molten pool gather, grow and emerge from the molten pool, and therefore the risk that air holes are generated in a weld joint is reduced, the welding quality of aluminum alloy is improved, and the problem that the porosity of aluminum alloy laser-electric arc hybrid welding is high is solved; and the solidification speed of liquid metal in the molten pool is reduced through the heating probe, and the problem that weld joint components are not uniform due to too high cooling speed and insufficient molten bath flowing is solved.

Description

technical field [0001] The invention relates to the field of welding, in particular to a welding system and method for reducing porosity in aluminum alloy laser-arc hybrid welding. Background technique [0002] Due to the characteristics of high thermal conductivity, low ionization energy and laser reflection of aluminum alloy, the stability of the welding process is very poor, and the keyhole is easy to collapse and produce porosity defects. In addition, due to the fast welding speed of aluminum alloy laser-arc hybrid welding, the cooling speed of the molten pool is fast, and the molten pool is narrow and deep, the gas inside the molten pool has no time to escape before the weld solidifies, which aggravates the risk of air holes in the aluminum alloy weld . Excessive cooling of the molten pool can easily lead to uneven composition of the weld and segregation of the composition, resulting in reduced performance of the joint. Contents of the invention [0003] The present...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K28/02B23K37/00B23K103/10
CPCB23K28/02B23K37/00B23K2103/10
Inventor 展旭和李康宁徐良宋坤林雷振朱天宇杨海锋崔辉
Owner 国家高速列车青岛技术创新中心
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