An Ultrasonic Friction Stir Welding Hybrid Welding System

A hybrid welding and ultrasonic stirring technology, which is applied in the field of ultrasonic friction stir welding composite welding system and ultrasonic friction stir composite welding system, can solve the problems of small ultrasonic amplitude, low ultrasonic energy density, and inability to obtain high-quality welds, etc., to achieve Large effective amplitude and strong load resistance

Active Publication Date: 2022-06-21
DALIAN JIAOTONG UNIVERSITY
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above patents all use a single ultrasonic transducer to provide ultrasonic energy, which is amplified by a first-stage ultrasonic horn. This design can obtain a higher ultrasonic energy when the welding device is running freely, but under heavy load conditions , the actual effective ultrasonic amplitude in the welding area is small, the output ultrasonic energy density is low, and high-quality welds cannot be obtained

Method used

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  • An Ultrasonic Friction Stir Welding Hybrid Welding System
  • An Ultrasonic Friction Stir Welding Hybrid Welding System
  • An Ultrasonic Friction Stir Welding Hybrid Welding System

Examples

Experimental program
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Effect test

Embodiment 1

[0049] like Figures 1 to 2 As shown, an ultrasonic friction stir welding hybrid welding system includes:

[0050] A front-stage ultrasonic horn 5, the front end of the front-stage ultrasonic horn 5 is fixed with two ultrasonic transducers 3 by stud bolts I4; the ultrasonic transducer 3 is connected with the power supply 1 through the wire 2;

[0051] A rear-stage ultrasonic horn 8, the front end of which is tightly connected with the rear ends of all the front-stage ultrasonic horns 5 through stud bolts II7;

[0052] The stirring head 10 is fixedly connected with the rear end of the latter stage ultrasonic horn 8; the circular end face of the stirring head 10 is closely connected with the end face of the latter stage ultrasonic horn 8, and the front end of the stirring head 10 The cylindrical section of the second stage enters the shaft hole at the rear end of the ultrasonic horn 8 of the latter stage, realizes radial positioning, and is fixedly connected by bolts.

[0053]...

Embodiment 2

[0070] like image 3 As shown in the figure, an ultrasonic friction stir welding hybrid welding system, the difference between this embodiment and Embodiment 1 is that in this embodiment, there are two of the front-stage ultrasonic horns 5 connected in series, and all the front-end ultrasonic horns 5 are located at the front end. The front end of the front-stage ultrasonic horn 5 is fixedly connected to the ultrasonic transducer 3, and the rear end of the front-stage ultrasonic horn 5 located at the rear end is fixedly connected to the front end of the rear-stage ultrasonic horn 8. .

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Abstract

The invention provides an ultrasonic friction stir welding composite welding system, which is characterized in that it includes at least one pre-stage ultrasonic horn, at least one ultrasonic transducer is fixed at the front end of the pre-stage ultrasonic horn; The front end of the horn is fixedly connected to the rear end of all the preceding ultrasonic horns; the stirring head is fixedly connected to the rear end of the subsequent ultrasonic horn; the preceding ultrasonic horn is a high-order The polynomial type half-wavelength ultrasonic horn has a large magnification; the subsequent ultrasonic horn is a half-wavelength ultrasonic horn with a small magnification. The system uses a high-power multi-vibrator ultrasonic vibration system to increase the driving power of the system, increase the ultrasonic energy density in welding, and improve welding efficiency. The amplitude in turn enhances the effect of the system's anti-load capability.

Description

technical field [0001] The invention relates to the technical field of friction stir welding, in particular to an ultrasonic friction stir hybrid welding system capable of effectively increasing amplitude and improving load resistance, and particularly relates to an ultrasonic friction stir welding hybrid welding system. Background technique [0002] In order to solve the problems of traditional inert gas shielded welding and other fusion welding, such as pores, hot cracks, joint softening, etc., the British Welding Institute invented a new solid-phase joining technology in 1991 - friction stir welding. During friction stir welding, the friction heat generated between the rotating stirring head and the workpiece to be welded is used to heat the aluminum alloy to a plastic state, and the welding is realized through the plastic flow of the material. Due to the low welding temperature, the shortcomings of TIG and MIG welding are overcome. , which provides a new welding method f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K28/02B23K20/10B23K20/12
CPCB23K28/02B23K20/10B23K20/122
Inventor 马付建宋浩焦首岳杨大鹏刘宇沙智华张生芳
Owner DALIAN JIAOTONG UNIVERSITY
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