Preparation method of metal honeycomb core body
A technology of metal honeycomb cores and foil strips, applied in metal processing equipment, manufacturing tools, welding equipment, etc., can solve the problems of poor dimensional accuracy and low efficiency, and achieve the effect of ensuring dimensional accuracy and avoiding overall deformation.
Inactive Publication Date: 2019-01-11
AVIC BEIJING AERONAUTICAL MFG TECH RES INST
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Problems solved by technology
[0004] The invention provides a method for preparing a metal honeycomb core body to solve the problems of low efficiency and poor dimensional accuracy of the existing stainless steel and superalloy honeycomb core body preparation methods
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[0024] The present invention will be further described below in conjunction with drawings and embodiments.
[0025] The preparation method of the metal honeycomb core provided by the embodiment of the present invention comprises the following steps:
[0026] S1: Take the nickel-based powder solder and dilute it with a binder, and mix it evenly to obtain the prepared solder.
[0027] In the embodiment of the present invention, BNi-2 solder is selected as the nickel-based powder solder, and the binder is BRaz-binder gel from Vitta Company.
[0028] S2: Take the first foil strip, and spread the prepared solder on the first foil strip at equal intervals to form a plurality of solder regions with equal width.
[0029] S3: Take the second foil strip, align the two ends of the first foil strip and the second foil strip, apply and prepare solder on the second foil strip at equal intervals to form a plurality of solder areas with equal widths, so that the second foil strip The solder...
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Abstract
The invention provides a preparation method of a metal honeycomb core body. For a large-height small-core-lattice honeycomb core body, when a tradition method is adopted, corrugated ribbon forming size precision is low, and problems such as dislocation and honeycomb core body deformation in the honeycomb splicing and welding process are caused. In the preparation method, the width and distance ofsmearing and mixing weld materials are precisely calculated, the metal honeycomb core body is prepared in the way of brazing and stretching in sequence, compared with a traditional splicing and welding technology, the size precision of honeycomb core lattices can be effectively ensured, overall deformation of the honeycomb core body is avoided, the one-time stacking thickness can reach 1m or above, 5m<2> of the honeycomb core body can be prepared one time, the size precision of the honeycomb core lattices is high, and preparation efficiency is greatly improved.
Description
technical field [0001] The invention relates to the field of welding technology, in particular to a method for preparing a metal honeycomb core. Background technique [0002] The metal honeycomb wall panel structure has excellent characteristics such as light weight, high specific strength, high specific stiffness, high temperature resistance, heat insulation, noise reduction, energy absorption and vibration reduction. The honeycomb panel structure can effectively reduce the structural weight of the aircraft, improve the structural efficiency, and also improve the maneuverability and flexibility of the aircraft. [0003] At present, the preparation method of stainless steel and high-temperature alloy honeycomb core is first roller forming, and then resistance spot welding or laser spot welding. After the honeycomb core is tailor-welded, the connection between the honeycomb core cell walls is realized by brazing. This method has many manufacturing processes, low efficiency a...
Claims
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IPC IPC(8): B23K1/00
CPCB23K1/0014
Inventor 岳喜山邓云华高兴强管志超
Owner AVIC BEIJING AERONAUTICAL MFG TECH RES INST