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Welding method and system for sheet metal parts

A welding method and parts technology, applied in welding equipment, cleaning methods and appliances, electron beam welding equipment, etc., can solve problems such as black lines and lack of fusion, improve the pass rate, reduce poor assembly quality, and ensure the butt joint gap Effect

Inactive Publication Date: 2020-09-25
AECC AVIATION POWER CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcomings of welding defects such as black lines and lack of fusion in the existing sheet metal parts in the above-mentioned prior art, and provide a welding method and system for sheet metal parts

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  • Welding method and system for sheet metal parts
  • Welding method and system for sheet metal parts
  • Welding method and system for sheet metal parts

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Embodiment Construction

[0041] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0042] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate ...

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Abstract

The invention belongs to the technical field of welding, and discloses a welding method and system for sheet metal parts. The welding method comprises the following steps of cleaning the welding surface of a to-be-welded part in a laser cleaning manner; assembling the to-be-welded part after the laser cleaning, performing first positioned welding on the back surface of a joint of the to-be-weldedpart through argon arc welding, and then assembling the to-be-welded part on a welding fixture; and according to preset welding parameters, through vacuum electron beam welding, performing second positioned welding on the front face of the joint of the to-be-welded part firstly, and then performing seal welding on the joint of the to-be-welded part. The laser cleaning technology is adopted beforewelding, dirt such as oxide skin on the welding face of the to-be-welded part is effectively removed, and then the welding quality of the metal plate parts is effectively guaranteed in the mode that argon arc welding back face positioning welding and vacuum electron beam front face positioning welding are combined.

Description

technical field [0001] The invention belongs to the field of welding technology, and relates to a welding method and system for sheet metal parts. Background technique [0002] At present, there are many sheet metal parts in the gas turbine, such as the wall, the casing of the combustion chamber, and the casing of the panting chamber. The materials are generally stainless steel, martensitic stainless steel, and high-temperature alloy. The cylinder or cone is generally a sheet metal part, and the different parts are connected by vacuum electron beam welding. [0003] However, since vacuum electron beam welding has high requirements for the assembly accuracy of parts, it is generally required that the butt joint gap of parts does not exceed 0.05mm. Finally, in the follow-up X-ray inspection, welding defects such as black lines and lack of fusion often appear. Contents of the invention [0004] The purpose of the present invention is to overcome the shortcomings of welding ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/16B23K15/06B08B7/00
CPCB23K9/16B23K15/06B08B7/0042
Inventor 王一迪王建涛康文军陈涛武建勋韦瑾李耀华
Owner AECC AVIATION POWER CO LTD
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