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A manufacturing method of a round-to-square complex inner cavity structure

A manufacturing method, a technology of changing circles to squares, which is applied in the direction of manufacturing tools, metal processing equipment, welding equipment, etc., and can solve problems such as technical difficulties and processing difficulties

Active Publication Date: 2021-12-14
XIAN YUANHANG VACUUM BRAZING TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At the same time, the outer shell is also a complex structure of round to square, if the inner shell and the outer shell are processed separately, and then the two are brazed together, it is necessary to process a complex structure, especially the complex structure of the inner surface of the outer shell, which is very difficult to process. Difficult; and not only to ensure the quality of brazing, but also to meet the requirements of the pressure test, but also to ensure the bonding rate of the mating surface of the parts, to complete the reliable welding of the inner sleeve and the outer sleeve, which is a technical difficulty in the processing process

Method used

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  • A manufacturing method of a round-to-square complex inner cavity structure
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  • A manufacturing method of a round-to-square complex inner cavity structure

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Embodiment Construction

[0038] The present invention will be described in further detail below in conjunction with the accompanying drawings, which are explanations rather than limitations of the present invention.

[0039] see Figure 1~Figure 9 , a method for manufacturing a round-to-square complex inner cavity structure, comprising the following operations:

[0040] (1) Cut the outer circular surface of the cylindrical inner sleeve in the four directions of upper, lower, left and right into inclined surfaces, and process a plurality of runner grooves uniformly in the axial direction on the outer circular surface and inclined surface of the cylindrical inner sleeve , get inner sleeve 1;

[0041] (2) Process four compensating blocks 2 that match the inclined surfaces of the inner sleeve 1 respectively, wherein the inner surface of the compensating block 2 is inclined and the outer surface is straight;

[0042] (3) On the inner surface of each compensation block 2, nickel-based adhesive tape solder...

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Abstract

The invention discloses a method for manufacturing a complex inner cavity structure from a circle to a square, which includes the following operations: cutting the outer circular surfaces of the upper, lower, left and right directions of the cylindrical inner sleeve into inclined planes to obtain the inner sleeve; Process four compensation blocks that match the slope of the inner sleeve; evenly spread nickel-based adhesive tape solder on the inner surface of each compensation block, and then place the four compensation blocks on the slope of the inner sleeve respectively; use brazing After the tooling clamps and fixes the compensation block and the inner sleeve, it is placed in a vacuum brazing furnace for vacuum brazing to obtain the inner sleeve assembly; brazing is set on the ribs of each runner groove and the outer surface of the compensation block. Feed trough: In the brazing material trough, nickel-based paste solder is coated and injected, and the outer sleeve is pressed to the outside of the inner sleeve assembly, and placed in a vacuum brazing furnace for vacuum brazing. The invention designs a compensating block for the structure of the inner sleeve, reduces the processing difficulty and improves the reliability of the manufacturing process through two times of brazing.

Description

technical field [0001] The invention belongs to the technical field of aerospace precision manufacturing, and relates to a method for manufacturing a complex inner cavity structure from a circle to a square. Background technique [0002] When processing the complex inner cavity structure from round to square, one end of the inner sleeve is round and the other end is square, and there are many runner grooves on the outer surface of the circular inner sleeve. Due to the special structure of the circular inner sleeve, the solder Difficult to preset. At the same time, the outer shell is also a complex structure of round to square, if the inner shell and the outer shell are processed separately, and then the two are brazed together, it is necessary to process a complex structure, especially the complex structure of the inner surface of the outer shell, which is very difficult to process. Difficult; and not only to ensure the quality of brazing, but also to meet the requirements ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00B23K1/008
CPCB23P15/00B23K1/008
Inventor 李文昌刘洋康路路李俊峰
Owner XIAN YUANHANG VACUUM BRAZING TECH
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