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Method and device for alloying composite processing of laser surface through mechanical vibration assisted induction heating

A technology of surface alloying and induction heating, applied in metal material coating process, coating and other directions, can solve problems such as limited effect, and achieve the effect of stable processing, improved efficiency and uniform structure

Inactive Publication Date: 2014-01-29
TONGLING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

When the difference in physical parameters between the base metal and the alloyed layer material is small, the above measures can achieve good results, but when the physical properties of the two are greatly different, the above methods have limited effect on inhibiting the cracking of the alloyed layer

Method used

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  • Method and device for alloying composite processing of laser surface through mechanical vibration assisted induction heating
  • Method and device for alloying composite processing of laser surface through mechanical vibration assisted induction heating
  • Method and device for alloying composite processing of laser surface through mechanical vibration assisted induction heating

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Experimental program
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Effect test

Embodiment 1

[0025] Such as figure 1 As shown, the processing device of this embodiment includes a numerical control console 1, a laser 6, a laser head 3, a mechanical vibration platform 8, a high-frequency induction heater 4, and an induction heating coil 2, and the mechanical vibration platform 8 is arranged on a workbench 7 , the alloyed sample 5 is placed on a mechanical vibration platform 8, the high-frequency induction heater 4 is connected to the induction heating coil 2, the induction heating coil 2 is fixed on the laser head 3, and the laser emitted by the laser head 3 is located at the induction heating coil 2 In the center of the heating area, the laser head 3 is connected to the laser 6, and the numerical control controller is respectively connected to the laser 6 and the high-frequency induction heater 4.

[0026] This embodiment is to carry out mechanical vibration-assisted induction heating laser surface alloying treatment on the surface of the 40Cr substrate with Mo powder ...

Embodiment 2

[0034] This embodiment is to carry out mechanical vibration-assisted induction heating laser surface alloying treatment on the surface of the LY16 aluminum alloy substrate with electrodeposited Ni-P layer. The specific steps are as follows:

[0035] (1) The surface of the LY16 aluminum alloy substrate is pretreated by grinding, degreasing, sandblasting and cleaning;

[0036] (2) Electrodeposit the Ni-P layer on the surface of the aluminum alloy substrate. The composition of the electrodeposition solution is shown in Table 2, and the parameters of the electrodeposition process are shown in Table 3. The thickness of the electrodeposited layer is about 15 μm;

[0037] (3) The sample was alloyed by induction heating-assisted laser surface alloying. The process parameters are shown in Table 1. After mechanical vibration-assisted induction heating laser surface alloying treatment, the thickness of the formed alloyed layer is about 0.3mm, the surface of the alloyed sample is smooth, ...

Embodiment 3

[0045] This embodiment is to carry out mechanical vibration-assisted induction heating laser surface alloying treatment on the surface of the TC4 titanium alloy substrate with a pre-placed Al-Nb layer by plasma spraying. The specific steps are as follows:

[0046] (1) The surface of the TC4 titanium alloy substrate is pretreated by grinding, degreasing, sandblasting and cleaning;

[0047](2) Spray Al-15Nb (mass fraction, %) mechanically mixed powder on the surface of the titanium alloy substrate with the 3710 atmospheric plasma spraying system produced by Praxair, USA. The spraying process parameters are shown in Table 4;

[0048] (3) The sample was alloyed by induction heating-assisted laser surface alloying. The process parameters are shown in Table 1. After mechanical vibration-assisted induction heating laser surface alloying treatment, the thickness of the formed alloyed layer is about 1.0mm, the surface of the alloyed sample is smooth, the structure is dense and uniform,...

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Abstract

The invention discloses a method and a device for alloying composite processing of a laser surface through mechanical vibration assisted induction heating. The method comprises the steps of delivering alloy powder to a purified and activated metal matrix surface by adopting a preset material method or synchronous powder delivery method; under the protection of argon, assisting laser scanning of a sample surface through induction heating, and performing mechanical vibration at the same time to perform auxiliary processing so as to prepare an alloyed layer. A high-frequency induction heater is connected with an induction heating coil, the induction heating coil is fixed on a laser head, the laser emitted by the laser head is positioned in the center of a heating area of the induction heating coil, and the laser head is connected with a laser. The method and the device disclosed by the invention can achieve the effects of refining grains, improving the completeness of a crystal structure, uniformizing structures, improving the efficiency of alloying the laser surface, increasing the depth of the alloyed layer and reducing the tracking trend of the alloyed layer, and has the advantages of stable processing, high efficiency, high quality of the alloyed layer and the like; therefore, the method and the device are beneficial to industrial popularization and application of the alloying of the laser surface.

Description

technical field [0001] The invention relates to a laser surface alloying processing method and device, in particular to a mechanical vibration-assisted induction heating laser surface alloying composite processing method and device. Background technique [0002] Laser surface alloying is a new method for surface modification of metal materials. It uses high-energy laser beams to melt the surface of the base metal, and at the same time adds alloying elements, and then uses the base as the solvent and the alloying elements as the solute to form a layer. A fairly high concentration and a fairly uniform alloy layer, so that the base metal surface has the required special properties such as wear resistance, corrosion resistance, high temperature resistance and oxidation resistance. Laser surface alloying can produce wear-resistant, corrosion-resistant, high-temperature and oxidation-resistant surface alloy layers on the surface of some base materials that are cheap and have insuf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/10
Inventor 王东生田宗军周杏花沈理达黄因慧
Owner TONGLING UNIV
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