Method and device for reinforcing underwater welding seam based on laser impact wave technology

A technology of shock waves and laser pulses, which is applied in strengthening treatment of corrosion-resistant welds, strengthening underwater welds, and high-strength areas of deep-sea components. control, pressure is precisely controlled, and the effect of avoiding damage

Active Publication Date: 2018-02-27
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Aiming at the problem that it is difficult to effectively eliminate the residual tensile stress of underwater welds at present, the present invention proposes a method and device for strengthening underwater welds based on laser shock wave technology

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  • Method and device for reinforcing underwater welding seam based on laser impact wave technology
  • Method and device for reinforcing underwater welding seam based on laser impact wave technology
  • Method and device for reinforcing underwater welding seam based on laser impact wave technology

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Embodiment Construction

[0030] The specific details and working conditions of the method proposed by the present invention will be described in detail below in conjunction with accompanying drawings

[0031] The device of the present invention includes a laser generator 2, a light guide system, a distance adjustment system, a water supply system and a control system. The light guide system includes a light guide fiber 3, a reinforced impact head 10, a spectroscopic chamber housing 13, a total reflection mirror 14, a first blank holder 15, a first converging lens 16, a first soft gasket 17, a hybrid 21, The second soft spacer 22, the second converging lens 23, the second bezel 24, the beam splitter 25, the third bezel 26, the third soft spacer 27, the transparent glass sheet 28, the inner tapered hole sleeve 19 and anti-recoil valve 20. Both ends of the optical fiber 3 have their own optical connectors, one end of which is connected to the laser generator 2, and the other end is connected to the stre...

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Abstract

The invention discloses a method and device for reinforcing an underwater welding seam based on the laser impact wave technology and belongs to the technical field of manufacturing of ship and marineengineering equipment. According to the method, impact waves induced by double low-energy light spots simultaneously are utilized for impacting, and thus the welding seam of an underwater member is reinforced. The strength of the welding seam can be improved, and the fatigue resistant performance and corrosion resistant performance of the welding seam of the member are improved; the cracking failure rate of a welding piece is decreased greatly, and the service life of the workpiece is prolonged; and meanwhile, the service life of the reinforcing device is also prolonged, the production efficiency is improved, and the production cost is reduced greatly.

Description

Technical field: [0001] The invention belongs to the technical field of shipbuilding and marine engineering equipment manufacturing, in particular to a method and device for strengthening underwater welds based on laser shock wave technology, which is suitable for strengthening treatment of welds of various underwater metal components, especially for deep sea components Strengthening treatment of medium and high strength, corrosion-resistant welds. Background technique: [0002] Welding technology is a manufacturing technology that uses heat, high temperature or high pressure to connect different metal components through bonding and diffusion between atoms. Compared with castings, welded parts have shorter preparation time, less processing allowance, high processing efficiency, saving time and resources, especially suitable for the manufacture of large hollow structural parts, so welding occupies an important position in the manufacturing industry. Since the weld of the wel...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D10/00C21D11/00
CPCC21D10/005C21D11/00
Inventor 张兴权纪啸天黄志伟陈彬裴善报童靳于杨恒基方光龙
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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