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Method for machining butt joints with lock bottoms based on electronic beam welding

An electron beam welding and butt joint technology, applied in electron beam welding equipment, welding equipment, metal processing equipment, etc., can solve the problems of insufficient size, large welding deformation of parts, difficult to eliminate deep pores, etc., and achieve high quality The effect of welding level, avoiding the problem of welding seam porosity, and ensuring the pass rate of one-time inspection

Inactive Publication Date: 2018-10-16
HUNAN SOUTH GENERAL AVIATION ENGINE CO LTD
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AI Technical Summary

Problems solved by technology

[0006] These two solutions have the following disadvantages and shortcomings: increased welding heat input, resulting in large welding deformation of parts, and the size does not meet the requirements; deep pores are difficult to eliminate, and the qualified rate of parts after repair welding is still very low

Method used

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  • Method for machining butt joints with lock bottoms based on electronic beam welding
  • Method for machining butt joints with lock bottoms based on electronic beam welding
  • Method for machining butt joints with lock bottoms based on electronic beam welding

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Embodiment Construction

[0025] For ease of understanding, the present invention will be further described below in conjunction with the accompanying drawings.

[0026] see Figure 4 ~ Figure 6 , Figure 5 Yes Figure 4 In the enlarged view at A, a method for processing a butt joint with a bottom lock based on electron beam welding provided by an embodiment of the present invention includes the following steps:

[0027] S1, pre-open multiple air outlets on the part with the lock bottom, the multiple air outlets are located at the root of the lock bottom and are evenly distributed, and the air outlets penetrate from one side of the lock bottom to the other side.

[0028] As shown in the figure, 1 and figure 2 As shown, piece 1 is a part with a bottom lock. Before docking with piece 2, a plurality of air outlet holes 11 are opened on piece 1 in advance, as Figure 4 and Figure 5 As shown, the opening position of the air outlet hole 11 is the root of the lock bottom, and the air outlet hole 11 pen...

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Abstract

The invention provides a method for machining butt joints with lock bottoms based on electronic beam welding. The method is characterized in that multiple exhaust holes (11) are formed in parts (1) with lock bottoms; the multiple exhaust holes (11) are positioned at the root parts of the lock bottoms, and are uniformly distributed along welding lines to be formed; the exhaust holes (11) penetratefrom one sides of the lock bottoms to the other sides; then, two parts to be welded are in butt joint; and the electronic beam welding is performed. The method can effectively guarantee once inspection pass percent of the parts when preventing the air hole problem of the welding lines, so that the high-quality welding level is achieved.

Description

technical field [0001] The invention relates to the field of welding technology, in particular to a method for processing a butt joint with a bottom lock based on electron beam welding. Background technique [0002] With the development of science and technology, high-energy beam welding methods such as electron beam welding have been widely used in various fields of national defense production, such as aerospace, automobiles, ships, etc. In the field of aeroengines, the welding of double gears is the method of electron beam welding Weld two gears machined to final size together, as follows Figure 1 ~ Figure 3 The welded test piece shown is an example: figure 1 For the welded joint form of piece 1, figure 2 For the welded joint form of piece 2, image 3 It is a schematic diagram of the weld seam formed after welding Part 1 and Part 2. Depend on image 3 It can be seen that this is a welded joint with a lock bottom. Because the lock bottom is tightly fitted, the air at...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K15/00
CPCB23K15/0033B23K15/0053
Inventor 曹密绒陈孝业周峰
Owner HUNAN SOUTH GENERAL AVIATION ENGINE CO LTD
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