Method and device for auxiliary heating type ultrasound rapid forming

An auxiliary heating and forming method technology, applied in the direction of metal processing equipment, non-electric welding equipment, welding equipment, etc., can solve the problems of difficult ultrasonic welding of hard metals, low power, and restrictions on the width and thickness of weldable metal foil, and achieve a control platform Simplification, improved plasticity, and easy-to-achieve effects

Active Publication Date: 2014-02-26
WEIHAI WANFENG MAGNESIUM IND DEV
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  • Application Information

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Problems solved by technology

[0008] In order to achieve the above purpose, the present invention softens the metal by effectively preheating the foil or the substrate, making it suitable for ultrasonic welding, effectively solving the problem of the width and thickness of the weldable metal foil caused by the low power of the current ultrasonic welding Due to the limitations and the difficulty of ultrasonic welding of harder metals, a new auxiliary heating ultrasonic rapid prototyping method and device based on the combination of preheating and ultrasonic welding is proposed

Method used

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  • Method and device for auxiliary heating type ultrasound rapid forming
  • Method and device for auxiliary heating type ultrasound rapid forming
  • Method and device for auxiliary heating type ultrasound rapid forming

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Effect test

Embodiment 1

[0026] like figure 2 As shown, use 0.5mm thick aluminum foil for ultrasonic rapid prototyping under electromagnetic induction heating mode, first place the first layer of aluminum foil on the console 5 for clamping, then place a layer of aluminum foil on the first layer of aluminum foil, use ultrasonic Rolling welding is used to weld two layers of aluminum foil. During the welding process, the electromagnetic coil 6 (heating unit) is energized to heat the aluminum foil at the welding position. At the same time, pressure and ultrasonic vibration are applied to the ultrasonic rolling welding indenter 1 to make the two layers The aluminum foils are quickly connected together. After the welding of this layer is completed, the next layer of aluminum foil is placed, and the cyclic welding is carried out according to the above steps, and finally a rapid prototyping aluminum part is obtained.

Embodiment 2

[0028] like image 3 As shown in the figure, 0.4mm thick nickel alloy foil was used for ultrasonic rapid prototyping on a 4mm thick titanium alloy plate. The titanium alloy was first clamped on the operating table 5, and then a layer of nickel alloy was placed on the titanium alloy plate for ultrasonic rolling. Pressure welding, a resistance seam welding roller 7 (heating unit) is installed in front of the ultrasonic rolling welding indenter 1, and the nickel alloy foil and the titanium alloy plate are rolled and preheated by low-power resistance seam welding, and then are rolled and heated by ultrasonic rolling. The final connection is completed by pressure welding. After the welding of this layer is completed, the next layer of nickel alloy foil is placed, and cyclic welding is carried out according to the above steps, and finally a rapid prototyping part with functional gradient is obtained.

[0029] Compared with the prior art, the present invention adopts the method of pr...

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Abstract

The invention belongs to the technical field of rapid forming, and particularly relates to a method for achieving multilayer bead welding of metal foil strips through combination of extra auxiliary heating and ultrasonic welding. According to the method, preheating is conducted on metal foil or a base body material in rapid forming, the metal foil or the base body material is softened through preheating conducted by an external heating field, good gas protection is provided, and the welding thickness and width of a metal foil sheet are increased under the condition that the ultrasonic welding power is limited, so that multilayer one-time ultrasonic bead welding or multilayer multi-time ultrasonic bead welding of the metal foil is achieved and a three-dimensional solid block is formed in the solid-phase connection mode. Finally, a machining platform controlled by a numerical control program is applied, so that geometrical characteristic machining of a needed part is achieved. A metal piece obtained according to the method has the advantages of being low in cost, high in efficiency, compact in organization, free of casting-state structure, capable of achieving rapid forming of a functionally gradient material and the like.

Description

technical field [0001] The invention belongs to the technical field of rapid prototyping, in particular to a method of using auxiliary heating to realize the preheating of metal foil or matrix material in rapid prototyping, reducing the hardness of the material to be welded, improving its ultrasonic weldability, and then ultrasonically welding the material. Under the condition of limited power, ultrasonic welding is used to make metal foil multi-layer stacking solid-phase connection metal block entities, supplemented by mechanical processing, and finally realize the auxiliary heating ultrasonic rapid prototyping method and device for rapid prototyping of parts. Background technique [0002] Incremental manufacturing technology, also known as rapid prototyping technology, was born in the late 1980s. It is different from the manufacturing technology that uses traditional processing methods such as turning, milling and grinding. It is a high-tech manufacturing technology based ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K20/10B23K20/24
CPCB23K20/10B23K20/24
Inventor 张洪涛常青冯吉才纪昂赵占锋刘积厚
Owner WEIHAI WANFENG MAGNESIUM IND DEV
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