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Method for optimizing repaired tissue of large workpiece based on local heat treatment realized by induction heating

A local heat treatment and induction heating technology, applied in the field of metal parts repair, can solve the problems of difficult design and manufacture, out-of-tolerance deformation, complex dimensional accuracy, etc., and achieve the effect of small heat-affected zone, small deformation and simple manufacturing.

Inactive Publication Date: 2015-09-02
SHENYANG AEROSPACE UNIVERSITY
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Problems solved by technology

However, for large thin-walled parts such as the engine case, the overall vacuum heat treatment needs to be clamped to ensure that the position and dimensional accuracy are complex and complex. The deformation is out of tolerance

Method used

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  • Method for optimizing repaired tissue of large workpiece based on local heat treatment realized by induction heating

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Embodiment Construction

[0027] Such as figure 1 As shown, an induction heating local heat treatment device includes an infrared thermal imager 1, a protective gas box 2, an induction heating power supply auxiliary machine 3, an induction heater 4, repair parts 5, a special fixture 6, and a thermal imager measurement and control computer 7 and the induction heating power host 8, the infrared thermal imager 1 of the present invention, the protective gas box 2, the induction heating power auxiliary machine 3, the induction heater 4, the thermal imager measurement and control computer 7 and the induction heating power host 8 can be purchased commercially. Obtained, or prepared according to the method disclosed in the prior art, those skilled in the art can select and set according to the prior art. The thermal imaging camera 1 is arranged in the protective gas box 2, the input and output of the thermal imaging camera 1 is connected with the input and output of the measurement and control computer 7 of th...

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Abstract

The invention aims at providing a method for optimizing a repaired tissue of a large workpiece based on local heat treatment realized by induction heating, wherein the method can be used for realizing local heat treatment on an arbitrary-shape repaired part of a large repaired workpeice, meeting the requirements for regulating and controlling a heat treatment system for regulating repaired tissues of different materials, not only avoiding high-temperature oxidation caused during local heat treatment of the repaired workpiece, but also avoiding super-poor heat deformation of the repaired workpiece. The method comprises the steps of 1, calibrating the infrared emissivity of a part and a clamp material; 2, clamping a workpiece by using a special clamp; 3, purifying the atmosphere in an inert gas protecting box; 4, heating a repaired body by using an induction heating device; and 5, regulating and optimizing the repaired tissue subjected to local heat treatment realized by induction heating.

Description

technical field [0001] The invention belongs to the technical field of repairing metal parts, and in particular relates to an optimization method for repairing tissue of a large workpiece based on local heat treatment by induction heating. Background technique [0002] Titanium alloys, high-temperature alloys and other precious metals with large thin-walled structures, due to the large material removal rate, huge machining volume, and long processing cycle, it is often unavoidable to have processing out-of-tolerance situations; or cracks, corrosion, and wear often occur during service and other damage failures. Due to the requirements of cost and production cycle, combined with the actual situation of different components, laser deposition repair, electron beam welding, micro-beam plasma welding and other processes are often used to achieve rapid repair of damaged parts. This repair itself has the characteristics of rapid melting, and the obtained It is usually a metastabl...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22F1/18
Inventor 卞宏友赵翔鹏杨光王维钦兰云王伟任宇航
Owner SHENYANG AEROSPACE UNIVERSITY
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