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Method and device for performing impact-spraying on inner hole wall based on laser impact wave technology

A shock wave and inner hole technology, which is applied in the field of parts processing and remanufacturing, can solve the problems of poor safety, low spraying efficiency, and difficult parameter control.

Active Publication Date: 2015-07-01
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this technology has the disadvantages of difficult control of parameters, poor safety, and high noise. It needs to be carried out in a special soundproof room, and due to intermittent operation, the spraying efficiency is low.

Method used

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  • Method and device for performing impact-spraying on inner hole wall based on laser impact wave technology
  • Method and device for performing impact-spraying on inner hole wall based on laser impact wave technology
  • Method and device for performing impact-spraying on inner hole wall based on laser impact wave technology

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Embodiment Construction

[0037] The device of the present invention includes a laser generator 1, a light guiding system, a powder feeding system, a workpiece fixture system and a control system. Wherein said light guide system includes light guide tube 2, laser pulse beam 3, total reflection mirror 4, impact head 5, transparent glass 6, protective film 15, stick shaft 16, stick shaft support 17, stepper motor 18; The system includes an air inlet pipe 7, a hopper rack 8, a hopper 9, metal powder 10, a powder feeding pipe 11, a powder volume switch 12, a sealing plug 13, and a crucible 21; the workpiece fixture system includes a sputtering chamber 14, a workpiece 19, a crucible 21, Heater 22, adjustment block 23, temperature control switch 24, movable window 25, guide sleeve 26, screw 27, motor 28, coupling 29, gear 30, rack shaft 31; control system includes computer 32 and controller 33 .

[0038] After the above-mentioned system components are installed, a sufficient amount of protective gas is intr...

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Abstract

The invention discloses a method and a device for performing impact-spraying on a inner-hole wall based on a laser impact wave technology, and relates to the field of component processing and re-manufacturing. The method comprises the following steps: feeding metal material powder in a hopper into a crucible to be heated and melted to obtain molten metal; then, irradiating intense laser on the liquid surface of the molten liquid, wherein partial substances on the surface of the liquid surface absorb laser energy to be momentarily gasified and ionized on the liquid surface so as to generate high-pressure plasmas, upwards ultrahigh impact force is momentarily applied to the molten metal by the high-pressure plasmas to enable the molten liquid to generate explosive sputtering, the sputtering molten drops are atomized into smaller particles while encountering resistance during flying in air, the smaller particles dash against the inner hole wall of a workpiece at high speed and are quickly condensed on the hole wall to form a compact coating. The device realizing the method comprises a laser generator, a light guide system, a powder feeding system, a workpiece clamp system and a control system. The device has the characteristics of ultrahigh spraying pressure, ultrahigh particle sputtering speed, good coating quality, high efficiency and the like.

Description

Technical field: [0001] The invention belongs to the field of parts processing and remanufacturing, and specifically relates to a method and a device for inducing high-pressure plasma on the surface of a molten liquid by using a strong laser, and the ultra-high pressure of the high-pressure plasma causes the molten liquid to sputter and spray onto the surface of a workpiece. It is suitable for spraying the inner wall of the workpiece. Background technique: [0002] With the rapid development of modern industry, mechanical products are required to work sustainably under harsh working conditions such as high temperature, high pressure, high speed, heavy load and corrosion, which inevitably puts forward high requirements on the surface quality of parts. Spraying is one of the important means to improve the surface quality of parts. It started in the 1950s and is a new technology for extending the service life of mechanical products, repairing mechanical parts and pre-protectin...

Claims

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Application Information

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IPC IPC(8): C23C4/12C23C4/06C23C4/123
Inventor 张兴权章艳段士伟李胜祗李殿凯许四祥黄志来时礼平张伟
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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