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Dissimilar metal sheet welding device and method

A technology for welding devices and dissimilar metals, applied in the direction of auxiliary devices, welding equipment, welding equipment, etc., can solve the problems of low efficiency, uneven pressure, increased process time and cost, etc., and achieve the effect of simple structure

Active Publication Date: 2018-11-20
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Conductive drive plates can be used to drive less conductive materials, but this adds process time and cost
The underwater discharge of electrohydraulic metal processing has exposed the phenomenon of cavitation due to the local high pressure in the working medium, causing problems such as low efficiency and uneven pressure.

Method used

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  • Dissimilar metal sheet welding device and method
  • Dissimilar metal sheet welding device and method
  • Dissimilar metal sheet welding device and method

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Embodiment Construction

[0023] In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail with reference to the accompanying drawings.

[0024] Such as Figure 1~7 As shown, a welding device for dissimilar metal plates includes a bakelite base 1, on which a positive conductive copper strip 2 and a negative conductive copper strip 3 are fixedly connected, and between the positive conductive copper strip and the negative conductive copper strip The metal foils 4 are connected to each other, and a bakelite pressing plate 5 is arranged above the metal foils, and a welding cavity for connecting the flying plate 6 and the target plate 7 is formed between the bakelite pressing plate and the metal foil. The welding cavity is provided with a spacer 8 for isolating the edge between the flying plate and the target plate; the positive conductive copper strip and the negative conductive copper strip are used...

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Abstract

The invention relates to a dissimilar metal sheet welding device which comprises a bakelite base, wherein a positive conduction copper bar and a negative conduction copper bar are fixedly connected onto the bakelite base and mutually connected through metal foil; a bakelite pressing plate is arranged above the metal foil; a welding cavity used for connecting a flying plate and a target plate is formed between the bakelite pressing plate and the metal foil; and an isolating sheet used for isolating an edge between the flying plate and the target plate is arranged in the welding cavity. The dissimilar metal sheet welding device is simple in structure; during the connecting process, an instantaneous large-pulse electric current is loaded to the metal foil, the narrow part of the metal foil isgasified within a short time, a lot of expansion gas is generated, and then the driving pressure is generated; and the flying plate is driven to obtain a certain speed and to impact the target plateat a high speed, the solid-phase metallurgical bonding phenomenon is generated, and then the welding operation is performed.

Description

technical field [0001] The invention relates to a welding device and method for dissimilar metal plates, belonging to the field of high-energy-rate plastic processing of metal materials. Background technique [0002] High-energy rate forming technology is a technology that forms metal workpieces through high-pressure impacts generated by instantaneous release of energy. Compared with the traditional use of mechanical force forming. Since the deformation is not formed by the external force of the punch, there is no direct contact. Therefore, the surface quality of the formed workpiece is better. And it has the characteristics of better metal fluidity during forming, effectively reducing wrinkling, and good forming precision. [0003] At present, the high energy rate forming technology involves electro-hydraulic forming, explosive explosive forming, electromagnetic forming, etc. Using instantaneous high-pressure impact, there have been many applications in the field of met...

Claims

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Application Information

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IPC IPC(8): B23K31/02B23K37/00B23K103/18
CPCB23K31/02B23K37/00Y02E60/10
Inventor 邓将华黄佳成范治松吕枫冯志锋
Owner FUZHOU UNIV