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Laser-induced arc cladding high-boron wear resistant alloy processing method

A wear-resistant alloy and processing method technology, applied in the field of alloy processing, can solve the problems of high process cost, easy cracks, stress concentration, etc., achieve the effect of low laser power, improve stability, and save process cost

Active Publication Date: 2019-01-15
JIANGNAN UNIV
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Problems solved by technology

[0005] In view of the shortcomings in the above-mentioned existing production technology, the applicant provides a processing method for laser-induced arc cladding of high-boron wear-resistant alloys, thereby solving the problem of high process cost and easy occurrence of high-boron wear-resistant alloys when laser arc composite cladding is used. Technical problems such as low material toughness, stress concentration, and easy cracks

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  • Laser-induced arc cladding high-boron wear resistant alloy processing method

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Embodiment Construction

[0025] The specific implementation manner of the present invention will be described below in conjunction with the accompanying drawings.

[0026] Such as figure 1 As shown, in the laser-induced arc cladding method for high-boron wear-resistant alloys in this embodiment, the workpiece 2 to be repaired is placed on the workbench 1, and a laser head is installed above the workbench 1 through the optical transmission system 4 of the laser. 3. It also includes the electrode 5 of the arc system, and the laser output energy of the laser is less than or equal to 500w; the specific process includes the following steps:

[0027] The first step: determine the cladding position, size and cladding powder thickness, determine the cladding size of the upper surface of the workpiece 2 to 100x30mm, and set the thickness of the high boron alloy powder to 1-2mm;

[0028] Step 2: Calculate the mass of high-boron alloy powder, calculate the volume and mass of high-boron alloy powder according to...

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Abstract

The invention relates to a laser-induced arc cladding high-boron wear resistant alloy processing method, and a high power arc heat source cooperates with a low power (less than 500W) laser heat source. Through reasonable parameter setting, the heat of the molten high-boron wear-resistant alloy powder is mainly provided by arcs, and the low-power laser has less effect on the melting of the alloy powder, but can stir the molten pool and change the flow mode of the molten pool so as to granulate coarse columnar borides, and to easily obtain a dense structure. At the same time, the main function of the low-power laser is to establish a channel with the arc plasma by the laser photo-induced plasma, thereby improving the stability of the arc and facilitating the improvement of the stability of the process. Moreover, the required laser power is small, and the process cost is saved.

Description

technical field [0001] The invention relates to the technical field of alloy processing, in particular to a processing method for laser-induced arc cladding of high-boron wear-resistant alloys. Background technique [0002] Single laser cladding technology has stable and controllable heat input, fast scanning speed, fast heating and cooling speed of the workpiece, small thermal distortion, good controllability of thickness, composition and dilution rate, and can obtain a surfacing layer with dense structure and superior performance . However, the production cost of laser surfacing is high, it is difficult to repair parts with large thickness and complex shape, and the energy consumption is extremely high. Due to the reflection of the metal surface and other reasons, the energy utilization is low. At the same time, high-power laser cladding is a rapid heating and rapid cooling process. , At the same time, the thermal shock is strong, and the cladding layer is prone to residu...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/348
CPCB23K26/348
Inventor 李环袁根福郭百澄
Owner JIANGNAN UNIV
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