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Ultrasonic and induction heating-assisted laser cladding method of composite nanometer coating

A laser cladding and nano-coating technology, which is applied in the coating and metal material coating process, etc., can solve the problems of easy aggregation of nano-powders, increased crack sensitivity, easy gasification and splashing, etc., and achieve simple equipment, The effect of suppressing the occurrence of cracks and enhancing the cladding effect

Active Publication Date: 2018-09-28
FUJIAN UNIV OF TECH
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  • Claims
  • Application Information

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Problems solved by technology

But its disadvantages are: laser cladding is a complex physical, chemical and metallurgical process, and the cladding layer is prone to tensile stress during rapid laser heating and cooling and melting and solidification, which greatly increases the crack sensitivity.
Nano-powder has the following disadvantages in use: nano-powder is easy to agglomerate and easy to gasify and splash, causing problems such as voids, burning, cracks and peeling off of the cladding layer

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  • Ultrasonic and induction heating-assisted laser cladding method of composite nanometer coating

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Embodiment Construction

[0041] Such as figure 1 As shown, the ultrasonic and induction heating assisted laser cladding device of the composite nano-coating includes a laser, a preset layer 2, a substrate 3, a workbench 4, an ultrasonic vibrator 5 and an induction heating coil 6, and the laser head of the laser 1 acts on the preset layer 2, the preset layer 2 is placed on the base 3, the base 3 is placed on the workbench 4, and the ultrasonic vibrator 5 acts on the preset layer 2 and the upper part of the base body 3, the induction heating coil 6 is arranged around the base body 3.

[0042] Ultrasonic and induction heating assisted laser cladding method of composite nano coating, including laser, preset layer 2, substrate 3, workbench 4, ultrasonic vibrator 5 and induction heating coil 6, the laser head 1 of said laser acts on The preset layer 2, the preset layer 2 is placed on the base 3, the base 3 is placed on the workbench 4, and the ultrasonic vibrator 5 acts on the preset layer 2 and the preset...

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Abstract

The invention provides an ultrasonic and induction heating-assisted laser cladding method of a composite nanometer coating. A laser, a precoated layer, a base body, a working table, an ultrasonic vibrator and an induction heating coil are arranged. The ultrasonic and induction heating-assisted laser cladding method of the composite nanometer coating comprises the following concrete steps of (10) after preprocessing the base body, placing the precoated layer on the base body, placing the base body with the precoated layer onto the working table, and moving a laser head of the laser to a position to be cladded of the base body; (20) starting the induction heating coil, and using the induction heating coil for heating the base body and the precoated layer to 200 to 400 DEG C; (30) switching on the laser and the ultrasonic vibrator, wherein the laser is used for laser-cladding the base body through the laser head, and the ultrasonic vibrator is used for ultrasonic-assisting the laser cladding process; (40) after finishing laser cladding, switching off the ultrasonic vibrator and the laser; (50) switching off the induction heating coil; and (60) taking out the base body subjected to laser cladding.

Description

technical field [0001] The invention relates to the technical field of surface engineering, in particular to a laser cladding device and method assisted by ultrasonic and induction heating of a composite nano-coating, and also relates to a nano-material composite gradient thermal barrier coating that is wear-resistant at high temperatures. Background technique [0002] Laser cladding technology refers to the placement of selected coating materials on the surface of the coated substrate in different ways of adding materials, and the high-energy laser beam melts it and the substrate surface-thin layer at the same time, and forms a very low dilution after rapid solidification. , A surface coating that forms a metallurgical combination with the base material, thereby significantly improving the wear resistance, corrosion resistance, heat resistance, oxidation resistance, etc. of the base material surface. [0003] As an emerging technology in the field of surface engineering tec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/10
CPCC23C24/10C23C24/103
Inventor 简明德王乾廷刘成武雷鹏达
Owner FUJIAN UNIV OF TECH
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