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Ultrasonic friction welding forming method for large-size amorphous alloys

An amorphous alloy, friction welding technology, applied in welding equipment, non-electric welding equipment, metal processing equipment and other directions, can solve the problems of heat dissipation and internal heat dissipation efficiency difference, uneven heat distribution of contact interface, poor welding quality, etc. Transfer and exchange, improve welding efficiency, reduce the effect of non-uniformity

Active Publication Date: 2020-08-28
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

On the one hand, different linear speeds will lead to different heat generated by friction. On the other hand, there are differences in heat dissipation efficiency between the outer surface of the workpiece and the internal heat dissipation efficiency, resulting in uneven heat distribution at the material contact interface during welding, and some areas are overburned and some areas The soldering temperature point is not reached, resulting in poor soldering quality

Method used

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  • Ultrasonic friction welding forming method for large-size amorphous alloys
  • Ultrasonic friction welding forming method for large-size amorphous alloys
  • Ultrasonic friction welding forming method for large-size amorphous alloys

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Such as figure 1 As shown, an ultrasonic friction welding forming method for large-scale amorphous alloys includes the following steps:

[0039]Step 1: Take the two amorphous alloys to be processed, and according to the welding requirements of the amorphous alloys, use milling to process the microstructure 3 at the interface to be welded between the first amorphous alloy 1 and the second amorphous alloy 2, Among them, the microstructure 3 is a rectangular structure, the composition of the first amorphous alloy 1 is Zr57Nb5Cu15.4Ni12.6Al10, the Tg is 405°C, and the Tx is 470°C, and the composition of the second amorphous alloy 2 is Zr58.5Nb2.8Cu15 .6Ni12.8Al10.3, Tg is 400°C, Tx is 480°C.

[0040] Step 2: clamp the first amorphous alloy 1 and the second amorphous alloy 2 on the welding system, so that the welding surface of the first amorphous alloy 1 and the welding surface of the second amorphous alloy 2 are in contact with each other.

[0041] Step 3: Set the main r...

Embodiment 2

[0043] Such as figure 2 As shown, an ultrasonic friction welding forming method for large-scale amorphous alloys, including the following steps:

[0044] Step 1: Take the two amorphous alloys to be processed, and according to the welding requirements of the amorphous alloys, use laser processing to process the microstructure 3 at the interface to be welded between the first amorphous alloy 1 and the second amorphous alloy 2, wherein , the microstructure is a triangular structure, the components of the first amorphous alloy 1 and the second amorphous alloy 2 are both Ca65Li14.54Mg12.46Zn8, Tg is 35°C, and Tx is 105°C.

[0045] Step 2: Clamp the first amorphous alloy 1 and the second amorphous alloy 2 on the welding system, so that the welding surface of the first amorphous alloy and the welding surface of the second amorphous alloy are in contact with each other.

[0046] Step 3: Set the main rotation motion parameter of the first amorphous alloy 1 to rotate in the reverse di...

Embodiment 3

[0048] Such as image 3 As shown, an ultrasonic friction welding forming method for large-scale amorphous alloys, including the following steps:

[0049] Step 1: Take two amorphous alloys to be processed. The composition of the first amorphous alloy 1 is Zr44Ti11Cu10Ni10Be25, the Tg is 350°C, and the Tx is 471°C. The composition of the second amorphous alloy 2 is Zr35Ti30Be27.5Cu7.5 , Tg is 301°C, and Tx is 467°C.

[0050] Step 2: clamp the first amorphous alloy 1 and the second amorphous alloy 2 on the welding system, so that the welding surface of the first amorphous alloy 1 and the welding surface of the second amorphous alloy 2 are in contact with each other.

[0051] Step 3: Set the main rotation motion parameter of the first amorphous alloy 1 to rotate in the reverse direction of a, and the rotation speed is 300rpm, and the main rotation motion parameter of the second amorphous alloy 2 is to rotate along the a direction, and the rotation speed is 200rpm, The pressure d...

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Abstract

The invention relates to the technical field of amorphous alloy machining, in particular to an ultrasonic friction welding forming method for large-size amorphous alloys. The method includes the following steps: firstly, machining the to-be-welded surfaces of the first amorphous alloy and the second amorphous alloy into microstructures; secondly, clamping and fixing the first amorphous alloy and the second amorphous alloy with the microstructures in the first step on an ultrasonic welding system; and thirdly, setting the parameters of an ultrasonic device, the parameters of a main rotary motion device and the parameters of a pressure device in the ultrasonic welding system separately, and starting the ultrasonic welding system to complete friction welding of the first amorphous alloy and the second amorphous alloy. By means of the preparation method, more heat can be generated during machining of the amorphous alloy materials, so that welding is faster; and meanwhile, the difference oflinear velocities at different radii on the contact interface of the amorphous alloy materials can be reduced, so that the nonuniformity of heat generation is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of amorphous alloy processing, in particular to an ultrasonic friction welding forming method for large-size amorphous alloys. Background technique [0002] Amorphous alloys have both metal and amorphous, solid and liquid properties, and are a disruptive new generation of high-performance metal materials. However, the formation size of amorphous alloys is limited, and most of the current commercial amorphous alloys are limited to centimeter-level, which seriously limits their application in the industrial field; amorphous alloys have viscous flow behavior in their supercooled liquid phase region, and Working in this temperature range, the amorphous alloy can always maintain the amorphous state. [0003] Friction welding uses the mutual frictional motion of the workpieces to generate heat as a heat source, so that the temperature of the material contact interface increases, the material softens or melts, and...

Claims

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Application Information

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IPC IPC(8): B23K20/12
CPCB23K20/122
Inventor 王成勇唐梓敏杨琮郑李娟杜策之丁峰陈伟专
Owner GUANGDONG UNIV OF TECH
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