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Ultrasonic metal welding method adopting pre-stamping deformation treatment

A deformation treatment and metal welding technology, which is applied in welding equipment, metal processing equipment, non-electric welding equipment, etc., can solve the problems of high welding energy consumption and difficult interface flow, so as to increase the welding process window, reduce welding energy consumption, eliminate friction effect

Inactive Publication Date: 2017-01-11
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] According to the above-mentioned technical problems such as the influence of the process parameters in the welding process on the welding effect, high welding energy consumption and difficult interface flow, an ultrasonic metal welding method for pre-stamping deformation treatment is provided.

Method used

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  • Ultrasonic metal welding method adopting pre-stamping deformation treatment
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  • Ultrasonic metal welding method adopting pre-stamping deformation treatment

Examples

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Effect test

Embodiment 1

[0033] Using the present invention to weld the magnesium alloy plate structure, the preparation process includes the following steps:

[0034] S1. Put the magnesium alloy plate 1 into the mold, clamp and fix the magnesium alloy plate 1 through the upper mold 2 and the lower mold 3, and then start stamping, and keep the displacement for 5s. After the stamping, the measured pressing force of the plate is: 0.10mm, the obtained plate surface is as figure 2 shown.

[0035] S2. Put the pre-deformed test piece (upper plate) and the base plate (lower plate) to be welded into the welding machine 4, position the pre-stamped position of the upper plate corresponding to the welding head, and start ultrasonic welding , high-strength joints can be obtained after welding.

[0036] Using different welding time methods to compare the influence of pre-stamping on welding strength, the results obtained are as follows image 3 shown. It can be seen that the joint strength after pre-stamping ...

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Abstract

The invention provides an ultrasonic metal welding method adopting pre-stamping deformation treatment. The ultrasonic metal welding method adopting the pre-stamping deformation treatment comprises the following steps that a plate to be welded is placed in a mold to be fixed and limited, pre-deformation treatment is conducted on the plate to be welded, and the back face of the plate to be welded is made to generate a boss which is in a preset shape and has a preset height; and the plate obtained after the pre-deformation treatment is in lap joint with a foundation plate to be welded, an ultrasonic welding head is moved to a pre-deformation treatment position to conduct welding, and finally a uniform and firm welded joint is obtained. According to the ultrasonic metal welding method adopting the pre-stamping deformation treatment, the pre-deformation treatment is conducted on the plate to be welded firstly, and then welding is conducted; in this way, a welding spot is stressed more evenly in the welding process, energy is concentrated better on the welding spot, so that the welding strength is improved, and the welding energy consumption is reduced; and besides, welding spots of different shapes can be formed, and the structural component design requirements are met.

Description

technical field [0001] The invention belongs to the field of welding technology, in particular to an ultrasonic metal welding method suitable for pre-punching deformation treatment. Background technique [0002] Ultrasonic welding is a pressure welding method that uses high-frequency vibration of ultrasonic waves to convert elastic vibration energy into friction work and deformation energy between workpieces under the action of static pressure. With the development of ultrasonic welding equipment, ultrasonic welding has been applied to the connection of metal plates, and because of its unique advantages such as high efficiency, low consumption, and environmental protection, ultrasonic metal welding has broad application prospects. [0003] The welding parameters (welding time, welding pressure, welding amplitude, etc.) in the ultrasonic welding process have complex effects on the welding effect. In addition, material hardness, surface roughness, material size, material compo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K20/10
CPCB23K20/10
Inventor 任大鑫赵坤民潘敏常颖范蓉
Owner DALIAN UNIV OF TECH
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