Ultrasonic friction stir welding composite welding system

A hybrid welding and ultrasonic stirring technology, which is used in welding equipment, non-electric welding equipment, metal processing equipment, etc., can solve the problems of small ultrasonic amplitude, inability to obtain high-quality welds, and low ultrasonic energy density.
CN112809219AActive Publication Date: 2021-05-18DALIAN JIAOTONG UNIVERSITY
11 Cites 2 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
DALIAN JIAOTONG UNIVERSITY
Publication Date
2021-05-18

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention provides an ultrasonic friction stir welding composite welding system. The system is characterized in that the ultrasonic friction stir welding composite welding system comprises at least one front-stage ultrasonic amplitude-change pole, a rear-stage ultrasonic amplitude-change pole and a stirring head, and at least one ultrasonic transducer is fixed to the front end of each front-stage ultrasonic amplitude-change pole; the front end of the rear-stage ultrasonic amplitude-change pole is fixedly connected with the rear ends of all the front-stage ultrasonic amplitude-change poles; the stirring head is fixedly connected with the rear end of the rear-stage ultrasonic amplitude-change pole; the front-stage ultrasonic amplitude-change poles are high-order polynomial type half-wavelength ultrasonic amplitude-change poles, and the amplification factor of the front-stage ultrasonic amplitude-change poles is a large amplification factor; and the rear-stage ultrasonic amplitude-change pole is a half-wavelength ultrasonic amplitude-change pole, and the amplification factor of the rear-stage ultrasonic amplitude-change pole is a small amplification factor. According to the system, a high-power multi-vibrator ultrasonic vibration system is used for increasing the driving power of the system, improving the ultrasonic energy density in the welding process and improving the welding efficiency, and the high-power ultrasonic vibration system achieves the effects of increasing the ultrasonic amplitude and enhancing the anti-load capacity of the system by designing a multi-stage amplitude-change pole.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of friction stir welding, in particular to an ultrasonic friction stir composite welding system that can effectively increase the amplitude and improve the load resistance capability, and in particular to an ultrasonic friction stir welding composite welding system. Background technique

[0002] In order to solve the problems such as traditional inert gas shielded welding and other fusion welding that are prone to produce pores, thermal cracks, and joint softening, the British Welding Institute invented a new solid-phase joining technology in 1991 - friction stir welding. Friction stir welding uses the friction heat generated between the rotating stirring head and the workpiece to be welded to heat the aluminum alloy to a plastic state, and realizes welding through the plastic flow of the material. Due to the low welding temperature, it overcomes the shortcomings of TIG and MIG welding , providing a new weld...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More