A kind of processing method of brazing sheet of aluminum alloy microwave component
A technology of microwave components and processing methods, which is applied in the direction of metal processing equipment, welding equipment, manufacturing tools, etc., can solve the problems of low dimensional accuracy, slag hanging on brazing sheets, carbon deposits, etc., and achieve high cutting accuracy and heat-affected zone Narrow, small cutting gap effect
Active Publication Date: 2017-04-19
CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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Problems solved by technology
[0004] Aiming at the problems of low cutting dimensional accuracy, serious deformation, slag and carbon deposits on the brazing sheet in the prior art, a processing method for the brazing sheet of aluminum alloy microwave components is provided
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[0027] In order to have a further understanding and understanding of the structural features of the present invention and the achieved effects, the preferred embodiments and accompanying drawings are used for a detailed description, as follows:
[0028] Such as figure 1 figure 2 As shown, the invention discloses a method for processing the brazing sheet of an aluminum alloy microwave component. figure 1 A schematic diagram of cutting the brazing sheet used in a microwave component is given, figure 2 A partial CAD design drawing of the cutting shape is given. First, take the 500mm╳300mm╳0.15mm aluminum alloy brazing sheet 3 to be cut for use. The specific process steps are as follows:
[0029] Step 1. Place the aluminum alloy brazing sheet 3 to be cut after removing the surface oxide skin on the electric air floatation platform 1;
[0030] Step 2. Start the vacuum pump 4 to pump air to the microhole array 11 on the electric air floatation platform 1, and the microhole arr...
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Abstract
The invention discloses an aluminum alloy microwave assembly brazing sheet processing method, which comprises the steps of 1) placing an aluminum alloy brazing sheet to be cut on an electric air-floating platform; 2) starting a vacuum pump so as to carry out air extraction on a micropore array on the electric air-floating platform, thereby enabling the aluminum alloy brazing sheet to be cut to be adsorbed on the electric air-floating platform; 3) selecting appropriate cutting parameters, and starting an ultraviolet laser and the electric air-floating platform to carry out cutting; and 4) turning off the vacuum pump after cutting is finished, and taking out a well cut brazing sheet. The method disclosed by the invention can cut the brazing sheet, which is complex in shape and high in precision, by using ultraviolet laser under the condition of not using a fixture, thereby being conducive to improving the batch production efficiency. According to the invention, cutting edges are clean and have no adhering slag or carbon deposits, and the brazing sheet can be directly applied to brazing welding after being cut, thereby avoiding damages for the processing precision of the brazing sheet in a secondary mechanical cleaning process.
Description
technical field [0001] The invention relates to the field of processing brazing sheets of microwave components, in particular to a processing method for brazing sheets of aluminum alloy microwave components. Background technique [0002] In order to meet the dual requirements of structure and electrical performance, the shape of microwave components is becoming more and more complex, and the precision is getting higher and higher. For example, the flat panel waveguide antenna is a microwave component widely used in the field of modern radar. It is generally composed of multiple high-precision thin-walled cavity parts with complex shapes. There are hundreds of dimensions to be guaranteed for the through slot; on the other hand, the dimensional accuracy and shape accuracy of the antenna are increasingly tending to the micron-level standard. As a key link in the brazing process of microwave components, how to process brazing sheets that have the same shape and precision as the...
Claims
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IPC IPC(8): B23K26/38B23K26/60
CPCB23K26/38
Inventor 王传伟梁宁雷党刚杨靖辉方坤仇晗
Owner CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST