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Welding method of aero-engine exhaust casing

An aero-engine and welding method technology, which is applied to welding equipment, automatic control devices, metal processing mechanical parts, etc., can solve the problems of out-of-tolerance, large deformation, and low positioning accuracy of the exhaust casing, so as to save waste and loss costs, Improve welding efficiency and reasonable welding effect

Active Publication Date: 2021-04-06
CHINA HANGFA GUIZHOU LIYANG AVIATION POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The previous combination welding method of the exhaust casing was immature, the positioning accuracy was not high during assembly welding, and the deformation after assembly welding was large, resulting in frequent out-of-tolerance conditions of the exhaust casing after machining, which could not meet the design requirements and directly affected the aviation industry. Post engine assembly

Method used

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  • Welding method of aero-engine exhaust casing
  • Welding method of aero-engine exhaust casing
  • Welding method of aero-engine exhaust casing

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Embodiment Construction

[0032] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings, but the claimed protection scope is not limited to the description.

[0033] Such as figure 1 , the structure of the aero-engine exhaust casing is composed of an inner ring part, an outer ring part and a support plate. The front mounting edge 1 of the outer ring is connected to the front section 3 of the cylinder by argon arc welding, the rear section 6 of the cylinder is connected to the front section 3 of the cylinder by argon arc welding, and the rear section 6 of the cylinder is connected to the rear installation edge 8 of the outer ring through a resistor Welding connection; the inner ring mounting edge 5 of the inner ring part is connected with the center cone slope section 7 by argon arc welding, the center cone slope section 7 is connected with the exhaust pipe 9 by argon arc welding, and the center cone slope section 7 and the reinforci...

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Abstract

The invention discloses a welding method for the exhaust casing of an aero-engine. The outer ring front mounting edge (1), support plate (2), cylinder front section (3), mounting seat ( 4), Welding of the inner ring mounting edge (5), cylinder rear section (6), center cone oblique section (7), outer ring rear mounting edge (8), exhaust pipe (9) and reinforcement ring (10) Sequence, welding method, assembly sequence, benchmark selection, etc., thus overcoming the problems of high machining accuracy, many welds, and compact space of the exhaust casing, improving the welding quality, and meeting the requirements of subsequent machining.

Description

technical field [0001] The invention belongs to the technical field of aero-engine sheet welding manufacturing, in particular to a combined welding method for an aero-engine exhaust casing. Background technique [0002] Such as figure 1 As shown, it is a key component of the engine, the exhaust casing, which has a diameter of φ300mm and a height of 270mm. It is welded by multiple sheet metal parts, mounting edges, mounting seats and other parts. Many, involving argon arc welding and resistance welding two welding processes. The processing accuracy of the parts is required to be high, the dimensional accuracy of the mounting edge is 0.03mm, and the shape and position tolerance accuracy is 0.01mm. The state of the components after welding is crucial to whether the later machining can meet the design requirements. [0003] The previous combination welding method of the exhaust casing was immature, the positioning accuracy was not high during assembly welding, and the deforma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K28/02B23Q15/00
CPCB23K28/02B23Q15/00
Inventor 余勇解为刚郑忠俊叶武郭飞张旭赵劲黎剑
Owner CHINA HANGFA GUIZHOU LIYANG AVIATION POWER CO LTD
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